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DocWatch Endocrine Disruption
The law of unintended consequences meets the chemical industry.
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Endocrine disruptors come in many forms, but have disastrous consequences for humans, other mammals, amphibians, even fish. Estrogens (flushed down with urine from Pill-taking women, Viagra-taking men, and others), Bisphenol-A (a chemical in plastics), flame retardants (in clothes, furniture, and more), and countless other plastic byproducts have this effect. Fish become hermaphroditic, mammals have defective reproductive organs, and all sorts of other maladies are associated with these odorless, tasteless malefactors.
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Related Scary Tags: contamination ~ bisphenol A ~ toxic buildup ~ pesticide runoff ~ health impacts ~ toxic water ~ hermaphroditic creatures ~ falling fertility ~ pharmwater ~ phthalates ~ plastic problems
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Mon, Dec 1, 2014 from Mother Jones:
That Takeout Coffee Cup May Be Messing With Your Hormones
Most people know that some plastics additives, such as bisphenol A (BPA), may be harmful to their health. But an upcoming study in the journal Environmental Health finds that entire classes of plastics--including the type commonly referred to as styrofoam and a type used in many baby products--may wreak havoc on your hormones regardless of what additives are in them... The new study suggests that sometimes the resins themselves are part of the problem, though additives such as dyes and antioxidants can make it worse.
In the case of polystyrene, the resin used in styrofoam and similar products, the authors tested 11 samples and consistently found estrogen seepage after exposure to intense steam or ultraviolet rays. ...
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And the androgynous will inherit the earth.
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Wed, Nov 26, 2014 from Reuters:
Chemicals in sunscreen, aftershave may affect male fertility
A new study suggests chemicals in sunscreen may impair men's ability to father children, government scientists say, but other experts question whether the chemicals wound up in men's urine from sunscreen or through another route.
The FDA has not authorized the substances - benzophenone-2, known as BP-2, and 4-hydroxybenzophenone, known as 4-OH-BP - for use in sunscreens. And BP-2 does show up as an ingredient in aftershaves, colognes, antiperspirant and other personal-care products. ...
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A natural method for birth control.
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Tue, Aug 12, 2014 from Scientific American:
BPA-Free Plastic Containers May Be Just as Hazardous
... recent research reveals that a common BPA replacement, bisphenol S (BPS), may be just as harmful.
BPA is the starting material for making polycarbonate plastics. Any leftover BPA that is not consumed in the reaction used to make a plastic container can leach into its contents. From there it can enter the body. BPS was a favored replacement because it was thought to be more resistant to leaching.... Nearly 81 percent of Americans have detectable levels of BPS in their urine. And once it enters the body it can affect cells in ways that parallel BPA. A 2013 study by Cheryl Watson at The University of Texas Medical Branch at Galveston found that even picomolar concentrations (less than one part per trillion) of BPS can disrupt a cell's normal functioning, which could potentially lead to metabolic disorders such as diabetes and obesity, asthma, birth defects or even cancer. ...
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From now on, I will only drink from the palm of my hands.
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Mon, Aug 4, 2014 from Washington Post:
As more male bass switch sex, a strange fish story expands
...In the latest study, smallmouth bass and white sucker fish captured at 16 sites in the Delaware, Ohio and Susquehanna rivers in Pennsylvania had crossed over into a category called intersex, an organism with two genders.... The previous studies detected abnormal levels of compounds from chemicals such as herbicides and veterinary pharmaceuticals from farms, and from sewage system overflows near smallmouth-bass nesting areas in the Potomac.
Those endocrine-disrupting chemicals throw off functions that regulate hormones and the reproductive system. In the newest findings, at one polluted site in the Susquehanna near Hershey, Pa., 100 percent of male smallmouth bass that were sampled had eggs, ...
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About time I got some help!
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Thu, May 22, 2014 from Huffington Post:
Minnesota Becomes First State To Ban Antibacterial Chemical Triclosan From Soaps
It's widely used nationwide as a germ-killing ingredient in soaps, deodorants and even toothpaste, but it's being banned in Minnesota.
Gov. Mark Dayton on Friday signed a bill to make Minnesota the first state to prohibit the use of triclosan in most retail consumer hygiene products. The Minnesota House and Senate passed it earlier last week because of health and environmental concerns about the chemical. ...
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I'm gonna wash that germ right out of my soap!
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Thu, Jan 23, 2014 from High Plains Public Radio:
Study Links Natural Gas Drilling and Spills to Hormone Disrupting Chemicals
Chemicals used in gas drilling work against our endocrine system, a network of glands and cells that release hormones into our bodies. The chemical disrupters can effect fertility, sperm counts, cause breast and prostate cancer, compromise our immune system, and even contribute to obesity, cardiovascular disease, and diabetes. ...
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Drill fatty drill.
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Mon, Dec 30, 2013 from San Francisco Chronicle:
Breast milk harbors environmental pollutants
It's advice that doctors impart to mothers over and over: Breast milk is the most nutritious, fortifying food they can feed their babies.
But women may not be aware of the strong possibility that their milk is also less than pure, an unintended consequence of living in a developed nation.
That's because their bodies are exposed to chemicals like pesticides, flame retardants, additives and other chemicals from household products, air, water and food. Breast milk's high fat and protein content tends to attract heavy metals and other contaminants that make their way into a woman's body from the environment, and are then passed on to newborns, albeit usually in minuscule amounts. ...
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Udderly busted.
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Fri, Dec 27, 2013 from Environmental Health News:
High PCBs linked to lower testosterone in Mohawk boys.
A new study has linked PCBs exposure to lower testosterone in Native American boys on a reservation along the St. Lawrence River.
Because they eat a lot of locally caught fish, the Akwesasne Mohawk, who live on territory between upstate New York, Ontario and Quebec, are highly exposed to banned industrial compounds called polychlorinated biphenyls, or PCBs.
The higher the exposure, the lower the testosterone levels, according to the new study of 127 Mohawk boys between 10 and 17 years old. A 10 percent increase in exposure to PCBs was associated with a 5.6 percent reduction in testosterone... disruption of hormones during adolescence is considered worrisome because it may have long-term repercussions in adulthood, particularly for fertility and reproductive diseases. ...
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Boys will not necessarily be boys.
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Mon, Sep 9, 2013 from Huffington Post:
EPA Quietly Withdraws Two Proposed Chemical Safety Rules
The Environmental Protection Agency this week quietly withdrew two draft rules dealing with the regulation of chemicals. The potential rules were in limbo at the Office of Management for several years.
One of the rules was a proposal to add Bisphenol A (BPA), a chemical included in many water bottles and other plastic products that has been linked to a number of potential health concerns, to the list of "chemicals of concern" that would be subject to more scrutiny. The EPA also proposed listing eight different types of phthalates, another group of chemicals often used in plastic products, and several types of flame retardants known as polybrominated diphenyl ethers (PBDEs).... A second rule that EPA withdrew would have forced companies to disclose to the public the chemicals used in products and the health and safety studies the companies have conducted on those chemicals -- much of which companies have been allowed to protect as "confidential business information." ...
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So much for the "protection" promised by the EPA.
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Tue, Sep 3, 2013 from Environmental Health News:
New study suggests "universal fetal exposure" to BPA
A new study in California found bisphenol A in all samples of umbilical cord blood obtained from pregnant women, suggesting universal fetal exposure. More than one-third of the samples had levels comparable to or higher than levels associated with health effects in animals.
All samples of umbilical cord blood obtained from pregnant women in California had detectable levels of bisphenol A, suggesting "universal fetal exposure," according to newly published research.
The study is the first to show that second-trimester fetuses are widely exposed to relatively high levels of BPA, an estrogen-like substance found in polycarbonate plastic, food can liners and other commonplace consumer products. ...
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"Universal"? Don't they mean planet-wide?
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Wed, Jul 31, 2013 from MedicalXpress:
BPA exposure disrupts human egg maturation
The randomized trial examined 352 eggs from 121 consenting patients at a fertility clinic. The eggs, which would have otherwise been discarded, were exposed to varying levels (20 ng/ml, 200 ng/ml and 20 µg/ml) of BPA in a laboratory setting. An egg from each patient was not exposed to BPA and served as the control. Researchers then examined the eggs and found that exposure to BPA caused:
- A decrease in the percentage of eggs that matured.
- An increase in the percentage of eggs that degenerated.
- An increase in the percentage of eggs that underwent spontaneous activation, the abnormal process when an egg acts as though it has been fertilized, even though it has not been.
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See? Technology is fixing the overpopulation problem!
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Tue, Jan 22, 2013 from London Daily Mail:
Sperm quality has declined by 38 percent in a decade
Sperm counts are falling at an alarming rate - up to 38 per cent in a decade - with diet and lifestyle largely to blame.
A Spanish study has found that even in young men, sperm concentration fell by an average of two per cent a year - and could soon hit levels where fertility is compromised.
A ten year-study of more than 200 men found the average concentration went from 72 million spermatozoids per millilitre in 2001 to 52 million/ml in 2011.... It is believed the trend is linked to diet, lifestyle and 'gender bender' chemicals - and possibly even tight underwear.... The findings also confirm research over the past 20 years that has shown sperm counts declining in many countries across the world. ...
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Could be Mother Nature's way of phasing humans out of the equation.
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Tue, Jul 17, 2012 from Associated Press:
FDA says controversial plastic chemical BPA no longer allowed in baby bottles and sippy cups
The federal government announced Tuesday that baby bottles and sippy cups can no longer contain the chemical bisphenol-A, or BPA.
The U.S. chemical industry's chief association, the American Chemistry Council, had asked the Food and Drug Administration to phase out rules allowing BPA in those products in October, after determining that all manufacturers of bottles and sippy cups had already abandoned the chemical due to safety concerns.... BPA is found in hundreds of plastic items from water bottles to CDs to dental sealants. Some researchers say ingesting the chemical can interfere with development of the reproductive and nervous systems in babies and young children. ...
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Waaaahhh!
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Want more context?
Try reading our book FREE online:
Humoring the Horror of the Converging Emergencies!
More fun than a barrel of jellyfish!
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Tue, Jul 3, 2012 from Environmental Health Perspectives:
What Do We Know about Obesogens? with Bruce Blumberg
Human beings, as a species, are putting on weight. Obesity rates are rising in rich and poor countries alike for a variety of reasons, from changing dietary habits and activity levels to exposure to artificial nighttime light. Mounting evidence from over the past decade suggests that certain chemicals may be playing a role as well. For some people, so-called obesogens may be altering their metabolism and fat cell development, making it harder to maintain a healthy weight. ...
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Clearly, we need to create a line of skinnygens.
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Thu, Apr 26, 2012 from HuffingtonPost:
'Agent Orange Corn' Debate Rages As Dow Seeks Approval Of New Genetically Modified Seed
... The corn has been genetically engineered to be immune to 2,4-D, an ingredient used in Agent Orange that some say could pose a serious threat to the environment and to human health. Approval by the United States Department of Agriculture and Environmental Protection Agency would allow farmers to spray it far and wide without damaging their crops, boosting productivity for the agribusiness giant.
Dow and its allies have insisted that their product is well tested, while industry regulators have so far overlooked critics' concerns....
"The scientific community has sounded alarms about the dangers of 2,4-D for decades," wrote opponents in their letter to Vilsack. "Numerous studies link 2,4-D exposure to major health problems such as cancer, lowered sperm counts, liver toxicity and Parkinson's disease. Lab studies show that 2,4-D causes endocrine disruption, reproductive problems, neurotoxicity, and immunosuppression."
Some farmers have argued that the new herbicide, a combination of 2,4-D and glyphosate -- the active ingredient in Monsanto's bestselling Roundup weed killer -- is necessary to combat weeds that have become resistant to glyphosate alone. ...
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No doubt the nervous Nellies will natter negativism nabobishly.
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Wed, Apr 18, 2012 from USAToday:
Farmers must spend more on herbicides as effectiveness fades
A much-used herbicide, which for years has helped farmers throughout the United States increase profits, is losing its effectiveness and forcing producers to spend more and use more chemicals to control the weeds that threaten yields.
The problem is Roundup, a herbicide introduced in the 1970s, and its partner, Roundup Ready crop seeds, genetically modified to withstand Roundup's active ingredient, glyphosate. In 1996, Monsanto introduced Roundup Ready soybean, soon touted as a game changer.
"It was an extremely valuable and useful tool for the past 15 years," said Bob Scott, extension weed scientist with the University of Arkansas.
But now, weeds that Roundup once controlled are becoming resistant to glyphosate, Scott said.
"It's a very, very serious issue here in the Delta," licensed crop consultant Joe Townsend said. "We're knee-deep in it." ...
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Right on time, since Roundup Ready soybean patents expire in 2014!
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Fri, Mar 16, 2012 from Scientific American:
Low Doses of Hormonelike Chemicals May Have Big Effects
In the new report, researchers led by Tufts University's Laura Vandenberg concluded after examining hundreds of studies that health effects "are remarkably common" when people or animals are exposed to low doses of endocrine-disrupting compounds. As examples, they provide evidence for several controversial chemicals, including bisphenol A, found in polycarbonate plastic, canned foods and paper receipts, and the pesticide atrazine, used in large volumes mainly on corn.
The scientists concluded that scientific evidence "clearly indicates that low doses cannot be ignored." They cited evidence of a wide range of health effects in people - from fetuses to aging adults - including links to infertility, cardiovascular disease, obesity, cancer and other disorders.
"Whether low doses of endocrine-disrupting compounds influence human disorders is no longer conjecture, as epidemiological studies show that environmental exposures are associated with human diseases and disabilities," they wrote. ...
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So the solution to pollution may not be dilution.
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Sat, Feb 11, 2012 from PRwatch:
Atrazine: A Molecular Bull in the Endocrine Shop
Atrazine is an herbicide primarily manufactured by the multinational conglomerate Syngenta and commonly used on commodity crops, forests, and golf courses. Its potential harmful effects on human health have been documented since the 1990s.
As a consequence, atrazine has been "unauthorized" in the European Union since 2004 (and in some European countries since 1991). However, it is one of the most heavily used herbicides in the United States....
Dr. Porter also believes that the EPA registration process is flawed because the EPA tests and registers the active ingredient rather than the chemical cocktail that is sold. He explained that the products sold to pesticide applicators and consumers consist of the active ingredient -- in this case atrazine -- combined with "solvents and surfactants that promote rapid penetration of the skin and the respiratory surfaces." This potentially exacerbates the impact of the active ingredient. "Once inside an organism," Porter says, what chemical product labels refer to as "inert" ingredients "promote rapid entry across all cell membranes, and access to every cell in the body, from gonads to brain and sex activity centers."... ...
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You had me at "gonads."
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Sat, Jan 14, 2012 from Medical News Today:
Deodorant Preservative Found In Breast Tissue From Cancer Patients
A new study led by the University of Reading in the UK that examined breast tissue samples from 40 women who underwent mastectomies for breast cancer, found they contained widespread traces of parabens, preservatives commonly used in deodorants, make-up, body lotions, moisturisers and many other cosmetic products. Although the study does not prove that parabens cause or even contribute to the development of breast cancer, it raises questions about their use....
"These results are of concern because parabens have been shown to mimic the action of the female hormone oestrogen and oestrogen can drive the growth of human breast tumours."...
"Many of the concentrations of the parabens measured in these breast tissues would be sufficient to drive the growth of oestrogen-dependent human breast cancer cells in the laboratory." ...
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Thank goodness my deodorant used psuedobens and quasibens, instead of those nasty parabens.
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Mon, Jan 9, 2012 from ChemicalWatch:
Researchers find school packed lunches contaminated with phthalates
Scientists have found that food packaging appears to increase the levels of two phthalates in lunches fed to children by up to 50 percent, following a study in Italy.
Researchers from the University of Naples measured the levels of di(2-ethylhexyl)phthalate (DEHP) and di-n-butylphthalate (DBP) in packed school meals prepared for children aged between 3 and 10 years old, and estimated the influence of the packaging process on meal contamination and the contribution to daily intake.
They found that 92 percent of foodstuffs employed in meal preparation contained DEHP, and 76 percent of them DBP, at detectable levels. By comparing food contents before and after packaging, the researchers found that the packaging process contributed to a significant increase in the level of the two chemicals, estimating that for young children school meals can increase daily DEHP intake by up to 18 percent and DBP by up to 50 percent. ...
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Phthat's phthreatening!
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Tue, Nov 15, 2011 from Canadian Press, via Huffington Post:
Estrogen In Drinking Water: Prostate Cancer Deaths Linked In New Study
Researchers suggest there may be a link between estrogen from oral contraceptives that has found its way into the environment and rising rates of prostate cancer among men around the world.
In a study in the online publication BMJ Open, researchers at Princess Margaret Hospital in Toronto looked at the percentage of women using the pill, intrauterine devices, condoms and vaginal barrier contraceptives in 87 countries, then examined the incidence and deaths from prostate cancer.
"Looking at these percentages, we find a strong correlation between female use of oral contraceptives at a population level and both new cases of prostate cancer and mortality from prostate cancer," said lead author Dr. David Margel, a urologist and fellow in uro-oncology. ...
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Sometimes the water makes me feel so verklempt.
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Thu, Sep 22, 2011 from ScienceDaily:
'Emerging Contaminants of Concern' Detected Throughout Narragansett Bay Watershed, U.S.
Rainer Lohmann, associate professor of chemical oceanography, and graduate student Victoria Sacks, with the help of 40 volunteers, tested for the presence of the chemicals in 27 locations. The compounds were found at every site....
The three compounds the researchers measured, which scientists refer to as "emerging contaminants of concern," are: triclosans, antibacterial agents found in many personal care products and which have been identified as posing risks to humans and the environment; alkylphenols, widely used as detergents and known to disrupt the reproductive system; and PBDEs, industrial products used as flame retardants on a wide variety of consumer products. PBDEs have been banned because they cause long-term adverse effects in humans and wildlife.
PBDEs, methyltriclosan and triclosan were found in highest concentrations in the Blackstone River, Woonasquatucket River and in upper Narragansett Bay, while some detergents were detected at similar levels at nearly every site. ...
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Let's just redefine these compounds as modern-day spices. Problem solved!
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Wed, Sep 14, 2011 from Chemical & Engineering News:
Chemicals Of Concern
The White House is under pressure from two democratic senators to release a list of chemicals the Environmental Protection Agency says could endanger human health or the environment. This so-called chemicals of concern list would include eight phthalates, polybrominated diphenyl ethers, and bisphenol A.
The chemical industry has attempted to block release of EPA's proposed list over the past year.
Congress granted EPA the authority to create such a list in the Toxic Substances Control Act (TSCA), which was signed into law in 1976. But EPA hasn't attempted to use this authority until now. ...
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If it endangers human health it endangers the environment -- and vice versa!
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Fri, Aug 19, 2011 from Environmental Health News:
Scientific proof: Money is dirty.
Paper money from countries all around the world carry a chemical hitchhiker -- the hormone-active substance known as bisphenol A (BPA). Paper bills are the latest addition to a growing list of items tainted with the ubiquitous chemical that has been linked to adverse reproductive, metabolic and behavioral effects.
The study identifies cash as another source of human exposure to BPA, report the researchers who found that BPA can transfer to the bills from thermal cash receipts stored next to them in wallets.
The levels measured in the 50 bills from different governments varied widely -- from almost nothing to considerably high amounts. Still, more research is needed to understand human exposures and possible health effects. ...
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Give me the cash and I'll be your guinea pig!
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Fri, Aug 12, 2011 from The Coast, Nova Scotia:
The fracking truth
Here's a rundown of the process, according to the Natural Resources Defense Council: First, clear a couple of hectares of land for each natural gas well. Drill down a few hundred (or thousand) metres and slice around underneath the shale, blast in at least nine million litres of water, plenty of sand and a variety of chemicals (many of which are known or possible human carcinogens, air pollutants or cause other chronic health problems) in order to access the gas. Bonuses include heavy metals, volatile organic compounds and radioactive elements. Score for the environment!
Life might just be that easy if it wasn't for annoying Cornell professors like Robert Howarth, who likes to pee on clean-air parades by looking at the "big picture," the impacts of natural gas beyond just how it burns. Howarth found that the harvesting, transport, processing and use of natural gas leaks so much methane (which fudges the climate 72 times worse than carbon dioxide) that you can't really call it significantly greener than coal, and it's worse than oil. That's going only on reported leakages. The reality is worse, "big picture" wise. ...
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And your concern is...? I mean really, isn't this normal?
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Wed, Aug 10, 2011 from American Chemical Society, via EurekAlert:
Paper money worldwide contains bisphenol A
The cash register receipts that people place near paper money in billfolds, purses, and pockets has led to a worldwide contamination of paper money with bisphenol A (BPA) -- a potentially toxic substance found in some plastics, thermal paper and other products. The amounts of BPA on dollars, Euros, rubles, yuans, and other currencies, are higher than in house dust, but human intake from currency is at least 10 times less than those from house dust. That's the conclusion of a new study in the ACS' journal Environmental Science & Technology.
Kurunthachalam Kannan and Chunyang Liao point out that manufacturers use BPA to make polycarbonate plastics used in some consumer products, including water bottles, sports equipment, and household electronics. Studies indicate that BPA acts as an endocrine disruptor -- meaning it mimics the action of the sex hormone estrogen. Exposure to BPA has been linked to a variety of health problems. Although a recent study found traces of BPA in U.S. currency, nobody knew until now about BPA in paper money worldwide.
The scientists' analysis of 156 pieces of paper money from 21 countries found that all contained traces of BPA....
"Although high levels of BPA were measured in paper currencies, human exposure through dermal [skin] absorption appears to be minor," the article notes. ...
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Just think of it as a regressive tox.
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You're still reading! Good for you!
You really should read our short, funny, frightening book FREE online (or buy a print copy):
Humoring the Horror of the Converging Emergencies!
We've been quipping this stuff for more than 30 months! Every day!
Which might explain why we don't get invited to parties anymore.
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Wed, Jul 13, 2011 from Telegraph.co.uk:
Nike, Adidas, Puma 'using suppliers pouring toxic chemicals into China's rivers'
In a year-long investigation, undercover activists collected water samples from discharge pipes at factories belonging to two of China's largest textile manufacturers which tested positive for dangerous chemicals, including hormone-disrupting alkylphenols that are banned in Europe....
The samples of filthy water were sent for testing in Exeter and the Netherlands which found a cocktail of chemicals, including hormone-distruptors, heavy metals and perfluorinated chemicals (PFCs) that are heavily restricted in Europe.
Greenpeace said the brands named in the report had confirmed they did have business relationships with one or other of the two investigated suppliers, but said they made no use of the "wet" processes which had caused the pollution....
"We take the problem which Greenpeace raised seriously and we will work with Greenpeace to find a solution." ...
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Impossible is nothing. Just do it.
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Wed, Jul 6, 2011 from Minneapolis Star-Tribune:
Concern rising over pollutants in waters
Scientists are increasingly aware of pollutants that were unknown or immeasurable just a few years ago. One documented effect has been the "feminization" of fish in the Mississippi River because of estrogen-like chemicals in the water....
Estrogenic substances can be found in things we use every day, such as detergents, prescription drugs, fragrances, birth control pills and patches, and personal care products such as body wash and shampoo. Hormones are also used in animal food.
These chemicals can get into surface water -- rivers, streams and even relatively remote lakes -- through the effluent from sewage treatment plants, agricultural runoff, leaching from landfills, and drainage from rural septic systems.
Once in the water, estrogen-like chemicals enter the bloodstreams of aquatic animals, including fish. They "deceive" the estrogen receptors in the fish because their molecular structure is so similar that receptors can't tell the difference.
The result is a disruption of the fish's reproductive system, ranging from diminished size and strength to the production of eggs and ovarian tissue in the male fish's testicles.
Just how worried should we be? The presence of these contaminants in Minnesota's rivers and lakes is a source of "concern, not alarm," says Heiko Schoenfuss, one of the leading researchers in the field.
These "contaminants of emerging concern," or CECs, are getting the attention of scientists and environmentalists because of what we do know, but also because of what we don't know. ...
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If they have a TLA, then it must be serious. OMG!
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Mon, Jul 4, 2011 from Mother Jones:
Persistent pollutants linked to diabetes?
But another culprit may be contributing, too: exposure to certain pesticides and other toxic chemicals. A new peer-reviewed study published in the journal Diabetes Care found a strong link between diabetes onset and blood levels of a group of harsh industrial chemicals charmingly known as "persistent organic pollutants" (POPs), most of which have been banned in the United States for years but still end up in our food (hence the "persistent" bit--they degrade very slowly).
The ones with the largest effect were PCBs, a class of highly toxic chemicals widely used as industrial coolants before being banished in 1979. Interestingly, the main US maker of PCBs, Monsanto, apparently knew about and tried to cover up their health-ruining effects long before the ban went into place. Organochlorine pesticides, another once-ubiquitous, now largely banned chemical group, also showed a significant influence on diabetes rates....
How are these awful chemicals sticking around and still causing trouble decades after being banned? POPs accumulate in the fatty tissue of animals--and transfer to the animals that eat them, including humans who eat meat and fish. In industrial animal farming, livestock are often given feed that includes animal fat, which helps POPs hang around in the food chain. "We feed the cow fat to the pigs and the chickens, and we feed the pig and chicken fat to the cows"....
Farmed salmon, too, carry significant levels of these dodgy chemicals, especially PCBs.
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POP goes the food chain!
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Thu, Jun 30, 2011 from EcoHearth:
Eerily Silent Summer Nights: Dead Crickets and Poisoned California Water
I remembered recently reading an article about the top pesticide source that is disrupting aquatic life in the Sacramento San Joaquim Delta, which supplies water to 23 million Californians.
The culprits are Pyrethroids, a common synthetic pesticide that researchers first suspected entered the water cycle with agricultural runoff. But the largest quantities actually flow from urban Sacramento and cities in surrounding counties, either from an excessive use of shampoos to eliminate lice and fleas, or from people pouring leftover household pesticides down their drains.
Pyrethroids are linked to neurological and thyroid damage as well as hormonal disruption, and they're extremely harmful to beneficial insects, including bees....
... Borneo where, in the 1950s, the World Health Organization had sprayed roofs with DDT to eradicate malaria. This eliminated mosquitoes as well as the wasps that kept the thatch-eating caterpillars in check, which then thrived and ate the thatched roofs. So the government replaced the roofs with sheet metal, but the pounding rains kept people awake at night. The DDT-killed bugs were eaten by geckos, which were eaten by cats that also eventually died. Then the rats multiplied. Finally, the government had to commission Singapore's Royal Air Force to parachute cats into the country....
Lovins told this story to illustrate how everything is connected. Or as John Muir said, "When we try to pick out anything by itself, we find it hitched to everything else in the universe."
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I'm loathe to accept that everything's connected, if that means that I'm responsible for what I do.
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Wed, Jun 8, 2011 from New York Times:
In Update on Sperm, Data Show No Decline
It is one of the most fraught topics in environmental health. Are men becoming less fertile, with declining sperm counts and diminishing sperm quality? If they are, then sperm might be an early warning sign of environmental dangers. And the prime suspects have been substances like plastics and pesticides that can have weak estrogenlike effects on cells.
But now 15 years of data from 18-year-old Danish men taking their military physicals show no decline in sperm counts, after all. ...
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Danes? They studied Danes?? Danes' sperm is indestructible!
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Fri, May 27, 2011 from San Francisco Chronicle:
FDA finds BPA in nearly every item tested
The FDA has been under significant pressure to regulate Bisphenol-A, a chemical component in plastics and resins that has been linked to health problems ranging from hyperactivity and early puberty to infertility and cancer. 90 percent of all Americans have detectable levels of BPA in their bodies, according to the Centers for Disease Control.
While the effects of the stuff have been fairly abundantly demonstrated, the mode of exposure has not been rigorously charted. Some FDA scientists decided to take the matter up themselves, testing the most popularly consumed canned foods. (Most cans of food are lined with resins that contain BPA.)
They found BPA in virtually all of the items they tested -- including green beans, chile, pasta and fruit.
But the amount of BPA in the items varied widely. One can of peas contained BPA at 113 times the concentration of another. Pasta, pork and beans, chile and soups tended to contain BPA at levels between 10 - 80 parts per billion. Both different types of resin and different chemical properties of the food likely account for the variety.
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Spaghetti-oh-oh.
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Tue, May 24, 2011 from Fair Warning:
'Gender-Bending' Chemicals Found in Toys in China
Toy manufacturers are exposing children in China to high levels of industrial chemicals known as phthalates that the U.S. and European Union have banned from children's products, the environmental organization Greenpeace says.
Phthalates, the best-known of which is DEHP, are used to soften plastic children's toys. The U.S. Centers for Disease Control and Prevention has classified them as probable human carcinogens. They have also been linked to "gender-bending." A 2005 study, for instance, suggested that phthalates could affect the genital development of boys, and other research has associated the chemicals with the early onset of puberty in girls.
Congress passed a ban in 2008 after concluding that the chemicals posed a risk to children who chew on their toys.
But there is no such ban in China and, according to Greenpeace, testing by an independent laboratory found phthalates in 21 out of 30 samples of children's products purchased in four Chinese cities. ...
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That's one way to limit population growth in your country.
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Mon, May 16, 2011 from ACRES:
Glyphosate (RoundUp): 'Giving the Plant A Bad Case of AIDS' (PDF)
The difference with glyphosate is that it is not specific to just one mineral nutrient, but immobilizes many of them and doesn't affect a primary mechanism to cause death by itself. It merely turns off the plant's defense mechanisms so that soil-borne fungi that would normally take weeks to months to damage a plant can kill it in just a few days after glyphosate is applied. When they use the glyphosate-tolerant technology, they insert another gene that keeps that plant's defense mechanism going somewhat so you can put the glyphosate directly on the crop plant without having it killed....
It's not quite analogous, but you could say that what you're doing with glyphosate is you're giving the plant a bad case of AIDS. You've shut down the immune system or the defense system....
With an annual crop like corn or soybean, or like we had with the Texas male-sterile gene, it was a matter of just going back to our old genetics and eliminating those with the gene from the breeding program. Once you have it implanted in the plant though, there's no way to get it out. With a perennial, insect-pollinated plant [like alfalfa], I don't know of any way to eliminate it once it's distributed throughout an area as it could be very readily....
Some of that data shows that quite low levels of glyphosate are very toxic to liver cells, kidney cells, testicular cells, and the endocrine hormone system, and it becomes important because all of the systems are interrelated. We're finding fairly significant levels of glyphosate in manure....
But for the most part it's just been considered so safe that we closed our eyes and said there's no need to do any of that work.
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Immunosuppression gives plant models that fashionable "malnourished-junkie" look.
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Fri, May 13, 2011 from Discovery News:
Lake Slime Loaded With Pollutants
Pesticides, plasticizers, pharmaceuticals and other hormone-disrupting chemicals soak into the slime that coats rocks at the bottom of lakes and streams, found a new study. Fish and aquatic insects then feed on those contaminated slimes, also known as biofilms.
By documenting biofilms as covert hiding places for toxic chemicals, the study offers the potential for aquatic slimes to help remove pollution from wastewater effluents. For now, the findings also raise new concerns about how the chemicals in our drugs and personal care products work their way through food chains....
Concern has been building for years about the environmental effects of endocrine disrupters, a class of chemicals that can interrupt the hormonal systems of both people and animals that are exposed to them. These chemicals, which include hormones from birth control pills and ingredients of many plastics, end up in the discharge that flows out of wastewater treatment plants all over the developed world. ...
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Slimant Green comes from people!
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Mon, Mar 7, 2011 from BBC:
Cancer rise and sperm quality fall 'due to chemicals'
Sperm quality significantly deteriorated and testicular cancers increased over recent years, a Finnish study says. The study in the International Journal of Andrology looked at men born between 1979 and 1987.
The University of Turku research suggests environmental reasons, particularly exposure to industrial chemicals, may be behind both trends.
A UK expert said chemicals may affect the development of male babies....
Total sperm counts were 227m for men born in 1979-81, 202m for those born in 1982-83 and 165m for men born in 1987, respectively.
In addition, the researchers observed that there was a higher incidence of testicular cancer in men born around 1980 compared with men born around 1950.
Writing in the journal, the researchers led by Professor Jorma Toppari, said: "These simultaneous and rapidly occurring adverse trends suggest that the underlying causes are environmental and, as such, preventable.
"Our findings further necessitate the efforts to identify reasons for the adverse trends in reproductive health to make preventive measures possible." ...
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That's hitting where it hurts.
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Fri, Mar 4, 2011 from Washington Post:
Scientists want to help regulators decide safety of chemicals
Groups representing 40,000 researchers and clinicians are urging federal agencies responsible for the safety of chemicals to examine the subtle impact a chemical might have on the human body rather than simply ask whether it is toxic.
In an open letter to the Food and Drug Administration and the Environmental Protection Agency to be published Friday in the journal Science, the scientists say the regulatory agencies need to tap into genetics, developmental biology, endocrinology and other disciplines when they analyze the safety of chemicals used in everyday products.
"Although chemical testing and risk assessment have long been the domain of toxicologists, it is clear that the development of improved testing guidelines and better methods of assessing risks posed by common chemicals to which all Americans are exposed requires the expertise of a broad range of scientific and clinical disciplines," said the letter, which was signed by eight scientific societies....
"We're talking about picking the best geneticists, endocrinologists, reproductive biologists to consider new ways of testing these chemicals for safety," Hunt said. "The old toxicology paradigm doesn't work anymore." ...
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We'd better check with industry before flying off the handle and bringing science into this.
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Tue, Feb 22, 2011 from Yale360:
Unraveling the Mystery of the Bizarre Deformed Frogs
For the last two decades, strange things have been happening to frogs. Some frog populations have high rates of limb deformities, while others have high incidences of what is known as "intersex" -- traits associated with both males and females, such as male frogs whose testes contain eggs. David K. Skelly, professor of ecology at Yale University's School of Forestry & Environmental Studies, set out to discover what was causing these deformities, which some researchers were attributing to an agricultural pesticide. His work has indeed implicated human activity, but not in the way many researchers had thought.
Skelly says one thing is clear: The deformities showing up in frogs are almost certainly not caused by a single chemical, but rather by a whole suite of substances -- including medicines excreted by humans into the environment -- that act in concert to mimic hormones like estrogen or cause other ill effects. ...
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That means there's no one to blame!
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Fri, Feb 18, 2011 from San Francisco Chronicle:
Agricultural chemicals interfere with testosterone
We've known for a while that endocrine disruptors may be causing early-onset puberty in girls, but, in our male-centric culture, that's not really a big deal. But you know what is bad -- like so bad I have no words and instinctively assume a stance protective of the family jewels?
Demasculinization, sissy men, men whose wieners -- gasp! -- don't work. Well, guess what? Agricultural chemicals might mess with those, too.
So says a new study that looked at pesticides humans are commonly exposed to (H/T Environmental Health News). It found that 23 of 37 compounds tested were anti-androgenic, or interfered with the effects of that all-important hormone, testosterone. Another 7 mimicked testosterone.
Many of the offending chemicals were fungicides applied to produce including strawberries and lettuce....
As evidence of just how little we know about the chemicals we come into contact with, 16 of the tested substances had not previously been known to affect hormonal activity.
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So far, so good.
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Fri, Feb 4, 2011 from Bloomberg:
EPA Sets First Standard for Perchlorate in Water, Reversing Bush Decision
The Obama administration will set the first U.S. standard for perchlorate in drinking water, reversing a Bush-era decision against regulating the chemical that may impair the human thyroid.
The Environmental Protection Agency will propose a rule for perchlorate, a toxic rocket-fuel ingredient used to make fireworks and explosive devices, the EPA said today in an e- mailed statement.
The EPA also said it will craft a rule to protect people from as many as 16 chemicals found in drinking water that may cause cancer. The agency under President Barack Obama set aside about one-third, or $3.3 billion, of its proposed fiscal 2011 budget for drinking and wastewater projects, almost double the total approved in the final year of the Bush administration. Bush's EPA declined to establish rules for perchlorate.... More than 4 percent of public U.S. water systems have detected perchlorate and 5 million to 17 million people may drink water containing the chemical, according to the EPA, citing monitoring data. The agency said its has received almost 39,000 comments about regulating perchlorate. ...
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They monitor chemicals they don't even regulate? That's gotta change.
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Fri, Jan 14, 2011 from San Francisco Chronicle:
Toxics found in virtually all pregnant U.S. women tested in UCSF study
Multiple chemicals, including some banned since the 1970s and others used in items such as nonstick cookware, furniture, processed foods and beauty products, were found in the blood and urine of pregnant U.S. women, according to a UCSF study being released today.... Of the 163 chemicals studied, 43 of them were found in virtually all 268 pregnant women in the study. They included polychlorinated biphenyls or PCBs, a prohibited chemical linked to cancer and other health problems; organochlorine pesticides; polybrominated diphenyl ethers, banned compounds used as flame retardants; and phthalates, which are shown to cause hormone disruption.
Some of these chemicals were banned before many of the women were even born.... The chemicals found in 99 percent to 100 percent of the women included certain PCBs, organochlorine pesticides, perfluorinated compounds, phenols, PBDEs, phthalates, polycyclic aromatic hydrocarbons and perchlorate.
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Just think of it as vaccinating fetuses against future toxic buildup.
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Mon, Nov 8, 2010 from Environmental Health Perspectives:
Chemicals in cosmetics, moisturizers linked to DNA damage in human sperm.
One type of paraben preservative -- butyl paraben (BP) -- was linked to DNA damage in men's sperm, according to a study that compared the levels of this compound to several reproductive measures in men. DNA damage in sperm cells can have negative effects on men's reproductive potential.
The findings indicate that the higher the BP levels, the more DNA damage the sperm had. The relationship was even stronger when BP and bisphenol-A (BPA) levels were considered together.
This is the first study to look at the relationship between paraben levels in men and sperm health. A prior study found that the late stages of sperm production were affected in mice fed BP. The results warrant further investigation into effects of parabens on men's sperm health as well as their effects on female reproductive systems and pregnancy and birth measures, given that women typically have higher levels of parabens than men.
Parabens are a group of antimicrobial chemicals often used to preserve cosmetics, pharmaceuticals and sometimes food. They are added to numerous personal care products -- including make-up, shaving gels, lotions and creams -- and some food and drinks. ...
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That my shaving gel may make me less manly just flies in the face reason!
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Sun, Nov 7, 2010 from Pittsburg KDKA TV:
Obesogens May Cause Weight Gain
If you try to lose weight and it just doesn't work, could chemicals in your food be to blame?
Some people believe chemical compounds called obesogens could be a major factor in making people fat.
"Obesogens are chemicals that occur in nature or artificially that mess with our metabolism and basically cause unnatural weight gain," said Stephen Perrine, author of "The New American Diet."
Obesogens include agricultural pesticides, hormones used in the meat industry, and chemicals used in plastics.
Perrine says regular fruits and vegetables are a problem because studies show a link between pesticide exposure and waist measurements. ...
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If we start calling obesogens slimogens, would that help?
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Thu, Oct 28, 2010 from Kaiser Permanente, via EurekAlert:
Exposure to BPA associated with reduced semen quality
Increasing urine BPA (Bisphenol-A) level was significantly associated with decreased sperm concentration, decreased total sperm count, decreased sperm vitality and decreased sperm motility, according to a Kaiser Permanente study appearing in the journal of Fertility and Sterility.
The five-year study recruited 514 workers in factories in China and compared workers who had high urine BPA levels with those with low urine BPA. Men with higher urine BPA levels had 2-4 times the risk of having poor semen quality, including low sperm concentration, low sperm vitality and motility.
This is the first human study to report an adverse association between BPA and semen quality. Previous animal studies found a detrimental association between BPA and male reproductive systems in mice and rats.... [T]hose with detectable urine BPA had more than three times the risk of lowered sperm concentration and lower sperm vitality, more than four times the risk of a lower sperm count, and more than twice the risk of lower sperm motility,"... ...
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Y'know, a worldwide decrease in fertility might not be such a bad thing.
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Tue, Oct 19, 2010 from CBC:
David Suzuki targets 'dirty dozen' toxic ingredients
The David Suzuki Foundation took aim Tuesday at a "dirty dozen" chemicals that are found in 80 per cent of the most common cosmetic products and urged better labelling laws to help consumers avoid them.
In a report on a chemical survey, the foundation said it got 6,200 volunteers to check the ingredients listed on 12,550 everyday cosmetic products, including shampoo, toothpaste, lipstick and skin cleanser.
When the results came in, four out of five products on the list of 12, 550 were found to contain at least one of the 12 chemicals, said Lisa Gue, the group's health policy analyst....
1 - BHA and BHT. Used in moisturizers as preservatives, the suspected endocrine disruptors may cause cancer and are known to be harmful to fish and other wildlife
2 - Coal-tar dyes such as p-phenylenediamine and colours listed as CI followed by five digits. Used in some hair dyes, may be contaminated with heavy metals toxic to the brain.
3 - DEA, cocamide DEA and lauramide DEA. Used in some creamy and foaming moisturizers and shampoos. Can react to form nitrosamines, which may cause cancer. Harmful to fish and other wildlife.
4 - Dibuytl phthalate. Used as a plasticizer in some nail-care products. Suspected endocrine disrupter and reproductive toxicant. Harmful to fish and other wildlife.
5 - Formaldehyde releasing preservatives such as DMDM hydantoin, diazolidinyl urea, imidazolidinyl urea, methenamine, quarternium-15 and sodium hydroxymethylglycinate. Used in a variety of cosmetics. Slowly release small amounts of formaldehyde, which causes cancer....
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I want make sure I leave a beautiful corpse.
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Fri, Oct 15, 2010 from New York Times:
Canada Declares BPA, a Chemical in Plastics, to Be Toxic
The government of Canada formally declared bisphenol A, a chemical widely used to create clear, hard plastics, as well as food can liners, to be a toxic substance on Wednesday.
The compound, commonly known as BPA, has been shown to disrupt the hormone systems of animals and is under review in the United States and Europe.
Canada's move, which was strenuously fought by the chemical industry, followed an announcement by the government two years ago that it would eliminate the compound's use in polycarbonate bottles used by infants and children.
The compound was formally listed as being toxic to both the environment and human health in an official notice published online by the government without fanfare, a noticeable contrast to the earlier baby bottle announcement, which was made by two cabinet ministers. ...
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No fanfare? This makes me a big fan.
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Wed, Oct 6, 2010 from Environmental Health News:
BPA found in atmosphere, around the world
A global study finds bisphenol A is in the air, showing yet another possible way people are exposed to the notorious endocrine disruptor. Add air to the growing list of places where bisphenol A (BPA) is found, say a pair of Japanese researchers who have measured and reported levels of the chemical in the world's atmosphere. They discovered BPA in air samples from all over the world at widely varied levels - from almost nothing in remote areas near the poles to 10,000 times more than that in India and other heavily populated regions of Asia.... Researchers believe that BPA enters the air when plastics, electronics and other waste are burned, since the highest concentrations were measured near populated areas and coincided with high levels of other chemicals that are associated with burning plastics. BPA is a common ingredient in these types of products, and incineration is a popular way to dispose of this waste in certain parts of the world. Manufacturing processes for plastics and other consumer products containing BPA are also thought to be a major source of BPA in the air.
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Living in the man-made material world.
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Mon, Oct 4, 2010 from Business Ethics:
Controversial Chemical Poses Disclosure Challenge for Colgate-Palmolive
The current squeeze on Colgate stems from a U.S. Food and Drug Administration decision this year to train its microscopes more closely on triclosan, a chemical with antibacterial properties that in recent decades has been added to scores of products, but now is under new scrutiny because of studies that suggest it may harm both human health and the environment. And while the FDA conducts its review - and critics of triclosan mount their arguments to curtail its use by consumers - Colgate and other product manufacturers have to decide what they can and should say to the marketplace, not to mention when and how to convey it.
The hurdle the company faces is clear: a core ingredient of its top-selling Colgate Total toothpaste is suddenly the heart of a public health tempest, but regulators have neither banned the chemical nor deemed it unsafe. There is no well-tested playbook for the scenario, says David Nash, partner at McMahon DeGulis, an environmental law firm based in Cleveland.
"The dilemma becomes, what kind of legal, moral, or socially responsible duty do they have to stakeholders to go beyond where the regulatory agency has already gone?" he asks. "In this fast-moving field, I would be hard-pressed to say [there is a] consensus on best practices."... The federal Centers for Disease Control and Prevention reported several years ago that it found triclosan in the urine of three-quarters of participants in a 2,500-person health survey. ...
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The worst "best practice": secrecy.
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Thu, Sep 23, 2010 from NIH, via ScienceDaily:
Higher Than Predicted Human Exposure to the Toxic Chemical Bisphenol A or BPA, New Study Indicates
Researchers have discovered that women, female monkeys and female mice have major similarities when it comes to how bisphenol A (BPA) is metabolized, and they have renewed their call for governmental regulation when it comes to the estrogen-like chemical found in many everyday products.... "This study provides convincing evidence that BPA is dangerous to our health at current levels of human exposure," said Fredrick vom Saal, Curators' professor of biological sciences at the University of Missouri. "The new results clearly demonstrate that rodent data on the health effects of BPA are relevant to predictions regarding the health effects of human exposure to BPA. Further evidence of human harm should not be required for regulatory action to reduce human exposure to BPA."
BPA is one of the world's highest production-volume chemicals, with more than 8 billion pounds made per year. It can be found in a wide variety of consumer products, including hard plastic items such as baby bottles and food-storage containers, the plastic lining of food and beverage cans, thermal paper used for receipts, and dental sealants. The findings in the current study suggest that human exposure to BPA is much higher than some prior estimates and is likely to be from many still-unknown sources, indicating the need for governmental agencies to require the chemical industry to identify all products that contain BPA. ...
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Sounds to me like further studies are needed. Wouldn't wanna go off half-cocked, now would we?
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Fri, Sep 17, 2010 from SciDev.net:
Pesticides persist in Indian atmosphere
While residues of banned pesticides in the atmosphere are declining around the world India continues to have exceptionally high levels, a new study shows.
Portable samplers using chemically treated resin and deployed at several sites on seven continents from 2005 to 2008 showed that 'organochlorine' or chlorine-containing pesticides such as DDT (Dichloro-Diphenyl-Trichloroethane), chlordanes and endosuplhans (that also contains sulphur) are declining in most regions, suggesting the effect of worldwide bans.
But levels of organochlorine pesticides in India remain "exceptionally high", researchers from the University of Toronto at Scarborough, Canada, reported in this month's (September 2010) issue of Journal of Environmental Monitoring, published by the Royal Society of Chemistry.... An estimated 11 billion tonnes of pesticides are used each year worldwide. ...
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Eleven billion tonnes of pesticides per year? How can we still have pests?
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Mon, Sep 6, 2010 from Miller-McCune:
Viewing Poisons at Our National Parks
America's national parks are heralded as pristine pockets of natural beauty, but that news hasn't stopped airborne pollutants from accumulating at alarmingly high rates in parks in the West.
Eight years ago, spurred by reports of contaminants found in alpine and polar ecosystems far from where the pollutants originated, National Park Service leaders assembled an interdisciplinary team of researchers drawn from experts at several universities, government agencies and research groups.... The news wasn't good:
• Of the 100 or more toxic substances tested for, 70 were found...• Many fish in parks have reached or exceeded the threshold level of contaminants for consumption by humans or other animals that eat them. ...
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How do we know they aren't just tourist airborne pollutants?
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Thu, Aug 26, 2010 from New York Times:
Enviro Groups Cheer as Scientist Bombards Atrazine Manufacturer With Profane E-Mails
It sounds like fodder for a PR flap that might benefit the leading producer of the controversial herbicide atrazine: reams of explicit, taunting e-mails sent to company employees by a professor whose research on the health risks of their product had won nationwide notice.... Hayes' e-mails to Syngenta officials date to 2002, according to a 102-page file the atrazine manufacturer posted to its website to buttress an ethics complaint filed against the tenured biology professor last month. His communiques run the gamut from spoken-word poetry to music lyrics -- Phil Collins, Tupac Shakur and other artists are quoted -- to profane intimations of violence against Syngenta officials.
The company's latest complaint furthers its long-simmering feud with Hayes, who has become an outspoken critic of atrazine after years-long research that found the weed killer disrupting the sexual development of frogs, in some cases turning male subjects into females. But the intensely personal clash over Hayes' e-mails, described by a Sygenta lawyer as "aggressive, unprofessional, and insulting," is failing to cut into his support from environmental and farmworker advocates who have helped amplify his warnings about the herbicide's human health risks.... "This is straight out of big tobacco's PR handbook," said Pesticide Action Network North America spokeswoman Heather Pilatic. "The news Syngenta is trying to distract people's attention from, as we're heading into the fall and the tail end of EPA's review, is that atrazine is a serious contaminant."... "I'm not offended by the term 'activist,'" Hayes said. "I am biased because I've seen the data. ... I'm biased in that I don't want [atrazine] in my water. Why shouldn't I make that research available to others?" ...
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OMG! Science can be subjective too?
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Wed, Aug 25, 2010 from PhysOrg:
BPA and testosterone levels: First evidence for small changes in men
An international group of researchers led by the Peninsula Medical School and the University of Exeter have for the first time identified changes in sex hormones associated with BPA exposure in men, in a large population study.... The team measured the amount of BPA excreted per day in urine samples. 715 adults aged between 20 and 74 years were studied. The study aimed to measure the daily BPA loads excreted by adults, and to examine statistical associations between the amount of BPA exposure and serum oestrogen and testosterone concentrations.
The average BPA daily exposure level in this European study population (over 5 micrograms per day) was slightly higher than recent comparable estimates for the USA population. The study found that higher BPA exposure was statistically associated with endocrine changes in men, specifically small increases in levels of testosterone in the blood.... "This finding is consistent with the evidence from laboratory experiments. However, this is just the first step in proving that at 'ordinary' exposure levels, BPA might be active in the human body. This new evidence does justify proper human safety studies to clarify the effects of BPA in people." ...
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As long as it's increases in testosterone, then it's just fine with me. Want to make something of it?
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Tue, Aug 24, 2010 from ScienceDaily:
Herbicide Atrazine Causes Prostate Inflammation in Male Rats and Delays Puberty
A new study shows that male rats prenatally exposed to low doses of atrazine, a widely used herbicide, are more likely to develop prostate inflammation and to go through puberty later than non-exposed animals. The research adds to a growing body of literature on atrazine, an herbicide predominantly used to control weeds and grasses in crops such as corn and sugar cane. Atrazine and its byproducts are known to be relatively persistent in the environment, potentially finding their way into water supplies.... The doses of atrazine mixture given to the rats during the last five days of their pregnancy are close to the regulated levels in drinking water sources. The current maximum contamination level of atrazine allowed in drinking water is 3 parts per billion. The doses given to the animals were 0.09 (or 2.5 parts per million), 0.87, or 8.73 milligrams per kilogram body weight.... "We didn't expect to see these kinds of effects at such low levels," Fenton said. She adds that this is the second paper to show low dose effects of atrazine metabolite mixtures. ...
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I'm just thrilled there's something to counteract the stuff speeding up puberty.
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Wed, Aug 18, 2010 from Grist:
Risk to kids from toxic pesticides may be underestimated, study finds
But evidence is building that the way we think about pesticide risk, especially in children, is all wrong. A few years ago, scientists at Emory and the University of Washington showed that when children switched to organic fruits and vegetables, pesticide residue in their bodies (as measured in their urine) dropped significantly within days. But what wasn't clear at the time was the pesticide load in a typical kid's diet, since the scientists in the organic study had themselves established the diet given to the kids.... The researchers analyzed the fruit-and-veg consumption of two groups of kids, one from Washington state and one from Georgia.
They found, as expected, a witch's brew of organophosphate and pyrethroid pesticides -- both of which are endocrine disruptors and have suspected neurological effects -- on the fresh fruit and vegetables the study participants ate. Organophosphates, by the way, are the direct descendants of VX and Sarin nerve gases and were recently linked to the development of ADHD in kids.... What this study is telling us is that we're seriously underestimating how much of these dangerous pesticides -- chemicals that can affect kids' growing brains and bodies -- our kids are getting at any one time. For policy makers, the challenge is to create incentives for farmers to move away from poisons as a pest-control strategy. ...
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An apple a day keeps the ADHD at play.
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Tue, Aug 10, 2010 from New Scientist:
Early puberty in girls doubles in a decade
Twice as many white girls in the US reach puberty aged 7 as a decade ago. No one is sure why this should be the case, but obesity and exposure to chemicals that mimic the female hormone oestrogen are the prime suspects.
The figures come from a study of 1200 girls in three US cities. Of the girls studied, 10.4 per cent of white 7-year-olds had breast development consistent with the onset of puberty, compared to 5 per cent in a 1997 study.... "To find the girls are starting breast development earlier and earlier is extremely concerning," she says. "To have that much change in such a short time, it has to be the environment."
It appears that the proportion of black 8-year-olds entering puberty has dropped from 48 per cent in 1997 to 43 per cent today. Frank Biro of the Cincinnati Children's Hospital Medical Center in Ohio, head of the new study, suggests this might be a sign that the numbers of black girls experiencing early puberty may finally be levelling off, while the percentage of white girls affected is still rising. ...
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Who could have expected a flood of endocrine disruptors to disrupt endocrine systems?
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Fri, Aug 6, 2010 from Biogeosciences:
Ocean acidification shows no effect on Baltic Cod sperm
Ocean acidification, as a consequence of increasing marine pCO2, may have severe effects on the physiology of marine organisms. However, experimental studies remain scarce, in particular concerning fish. While adults will most likely remain relatively unaffected by changes in seawater pH, early life-history stages are potentially more sensitive - particularly the critical stage of fertilization, in which sperm motility plays a central role. In this study, the effects of ocean acidification (decrease of pH to 7.55) on sperm motility of Baltic cod, Gadus morhua, were assessed. We found no significant effect of decreased pH on sperm speed, rate of change of direction or percent motility for the population of cod analyzed. We predict that future ocean acidification will probably not pose a problem for sperm behavior, and hence fertilization success, of Baltic cod.
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We've got endocrine disruptors for that!
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Thu, Aug 5, 2010 from ACS, via EurekAlert:
Homes of the Poor and the Affluent Both Have High Levels of Endocrine Disruptors
Homes in low-income and affluent communities in California both had similarly high levels of endocrine disruptors, and the levels were higher in indoor air than outdoor air, according to a new study believed to be the first that paired indoor and outdoor air samples for such wide range (104) of these substances. The study appears in ACS' Environmental Science & Technology.... Examples include phthalates, which are found in vinyl and other plastics, and polychlorinated biphenyls (PCBs), which are found in older paints, electrical equipment, and building materials. EDCs also are among the ingredients in some pesticides, fragrances, and other materials.... Levels were generally higher indoors than outdoors -- 32 of the compounds occurred in higher concentrations indoors and only 2 were higher outdoors. The scientists expressed surprise at finding higher concentrations of some phthalates outdoors near urban homes contributing to higher indoor levels as well, but concluded that EDCs "are ubiquitously common across socioeconomic groups." ...
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The disrupted will always be with us.
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Fri, Jul 30, 2010 from CBC:
BPA found in cash register and ATM receipts
A senior scientist with Environmental Working Group says the reason for concern is the amount of BPA found on receipts.
"The BPA is in much higher concentration in the receipt and much higher concentrations are available to be wiped off the receipts," Dave Andrews told CBC News.
The University of Missouri laboratory did the analysis on 36 receipts gathered from automated teller machines, and major retailers such as McDonald's, KFC, Wal-Mart and Safeway.
The total amount of BPA on receipts was 250 to 1,000 times the amount typically found in a food can or plastic bottle.... "It's a concern that retail workers who are handling receipts all day long would be exposed to higher amounts," he said.... People working in the retail sector had 30 per cent more BPA on average than other Americans.... It also warns not to use an alcohol based hand sanitizer after handling a receipt as it causes greater absorption of the chemical.
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Does the fun never stop?
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Thu, Jul 29, 2010 from University of Calgary, via EurekAlert:
Gender-bending fish on the rise in southern Alberta
Chemicals present in two rivers in southern Alberta are likely the cause of the feminization of fish say researchers at the University of Calgary.... "We found that chemicals - man-made and naturally occurring - that have the potential to harm fish were present along approximately 600 km of river," ... The study focused on two rivers in the South Saskatchewan River Basin: The Red Deer and Oldman rivers, located in southern Alberta, Canada. The water was analyzed for more than two dozen organic contaminants, many with hormone-like activity, commonly found in wastewater or rivers impacted by human and agricultural activity. Compounds detected in the water included synthetic estrogens (birth control pill compounds and hormone therapy drugs); bisphenol A, a chemical used in making plastics; and certain types of natural and synthetic steroids that are byproducts of agricultural run-off and cattle farming.... Our results showed females make up 85 per cent of the population of longnose dace. In the upstream locations, females comprise 55 per cent of the population," says Habibi... ...
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And what males remain... are exhausted.
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Sun, Jul 25, 2010 from BBC:
UN may strike Baikal off World Heritage list
The UN may remove the world's deepest and oldest lake from the World Heritage list because of concerns over pollution by a Russian pulp and paper mill.
Lake Baikal holds one fifth of the world's fresh water and is home to many unique plants and animals.
At its 34th session about to kick off in Brazil, the World Heritage Committee will discuss the effect of the plant's wastewaters on the unique ecosystem.
The plant produces bleached cellulose. It bleaches paper with chlorine and discharges the wastewaters into Baikal, dubbed the Pearl of Siberia - one of the cleanest lakes on Earth.
Ecologists say the mill has been spewing thousands of tonnes of dioxins and other harmful by-products into Baikal. ...
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The Pearl of Siberia is turning black.
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Fri, Jul 2, 2010 from EPOnline:
Dispersant Testing Finds No Significant Endocrine Disruption, EPA Says
The U.S. Environmental Protection Agency on June 30 released peer-reviewed results from the first round of its own independent toxicity testing on eight oil dispersants, which indicated that none of the eight dispersants tested, including the product in use in the Gulf of Mexico, displayed biologically significant endocrine disrupting activity.
While the dispersant products alone - not mixed with oil - have roughly the same impact on aquatic life, JD-2000 and Corexit 9500 were generally less toxic to small fish and JD-2000 and SAF-RON GOLD were least toxic to mysid shrimp. While this is important information to have, additional testing is needed to further inform the use of dispersants.
"We will continue to conduct additional research before providing a final recommendation," said EPA Administrator Lisa P. Jackson. "We want to ensure that every tool is available to mitigate the impact of the BP spill and protect our fragile wetlands. But we continue to direct BP to use dispersants responsibly and in as limited an amount as possible." ...
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That's what BP said... last night.
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Tue, Jun 22, 2010 from UC Boulder, via EurekAlert:
After upgrade, wastewater more slowly changing the gender of fish
Male fish that used to be feminized after chemicals, such as the pharmaceutical ethinylestradiol, made it through the Boulder, Colo., Wastewater Treatment Plant and into Boulder Creek, are taking longer to become feminized after a plant upgrade to an activated sludge process, according to a new study.... They mimic estrogen and may disrupt the endocrine (hormone) system of both animals and humans, said the study's principal investigator, David Norris, PhD, an integrative physiology professor at the University of Colorado at Boulder.
Norris' team reported in 2006 that native male fish in Boulder Creek decreased in numbers with respect to females and numerous intersex fish were found downstream of the wastewater treatment plant. After a technology upgrade to the wastewater treatment plant in 2008, the reproductive disruption in the fish was far less pronounced. However, Norris said the study results should still concern people.
"The fish are a wake-up call," Norris said. "Our bodies and those of the much more sensitive human fetus are being exposed everyday to a variety of chemicals that are capable of altering not only our development and physiology but that of future generations as well."... After the technology upgrade to the wastewater treatment plant in 2008, the effluent was considerably less estrogenic to the fish. After the treatment plant's upgrade, the minnows exhibited less intense loss of male sex characteristics, an initial analysis found. ...
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Heck, the water tasted just fine.
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Fri, Jun 11, 2010 from Reuters:
Waiter, there's a potential carcinogen in my soup
What Sprague didn't realize is that BPA, or bisphenol A, is ubiquitous. Simply put, just about anything you eat that comes out of a can -- from Campbell's Chicken Soup and SpaghettiOs to Diet Coke and BumbleBee Tuna -- contains the same exact chemical.
The exposure to BPA from canned food "is far more extensive" than from plastic bottles, said Shanna Swan, a professor and researcher at the University of Rochester in New York. "It's particularly concerning when it's lining infant formula cans."
BPA is the key compound in epoxy resin linings that keep food fresher longer and prevents it from interacting with metal and altering the taste. It has been linked in some studies of rats and mice to not only cancer but also obesity, diabetes and heart disease.... What is clear, however, is that unlike the case with plastic, there are no economically viable alternatives to the chemical in epoxy resins right now.... Because BPA has been presumed to be safe without question for so long, very little research has been undertaken to find commercially viable substitutes in canned goods. ...
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If it's canned in a Mason Jar, it's more likely BPA-free.
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Sun, May 23, 2010 from ScienceDaily:
Prenatal Exposure to Endocrine-Disrupting Chemicals Linked to Breast Cancer
A study in mice reveals that prenatal exposure to endocrine-disrupting chemicals, like bisphenol-A (BPA) and diethylstilbestrol (DES), may program a fetus for life. Therefore, adult women who were exposed prenatally to BPA or DES could be at increased risk of breast cancer, according to a new study accepted for publication in Hormones & Cancer, a journal of The Endocrine Society.... "BPA is a weak estrogen and DES is a strong estrogen, yet our study shows both have a profound effect on gene expression in the mammary gland (breast) throughout life," said Hugh Taylor, MD, of the Yale University School of Medicine in New Haven, Conn. and lead author of the study. "All estrogens, even 'weak' ones can alter the development of the breast and ultimately place adult women who were exposed to them prenatally at risk of breast cancer." ...
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Bad news, if you're a mouse. Or maybe if you were ever in utero.
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Sun, May 23, 2010 from Los Angeles Times:
BP refuses EPA order to switch to less-toxic oil dispersant
BP has rebuffed demands from government officials and environmentalists to use a less-toxic dispersant to break up the oil from its massive offshore spill, saying that the chemical product it is now using continues to be "the best option for subsea application."
On Thursday, the U.S. Environmental Protection Agency gave the London-based company 72 hours to replace the dispersant Corexit 9500 or to describe in detail why other dispersants fail to meet environmental standards.
The agency on Saturday released a 12-page document from BP, representing only a portion of the company's full response. Along with several dispersant manufacturers, BP claimed that releasing its full evaluation of alternatives would violate its legal right to keep confidential business information private.... Dispersants break oil into droplets that decompose more quickly. But scientists worry that extensive use of the chemicals in the BP spill is increasing marine life's exposure to the toxins in oil.
But that alternative product, Sea Brat #4, according to BP, contains a chemical that could degrade into an endocrine disruptor, a substance that creates hormonal changes in living creatures, and could persist in the environment for years. ...
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In America, we call refusal on those grounds "executive privilege."
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Fri, May 14, 2010 from ChemicalWatch:
Bill on screening for endocrine disrupters in drinking water enters Congress
Ed Markey, chairman of the Energy and Environment Subcommittee of the US House of Representatives Energy and Commerce Committee,and Jim Moran, chairman of the Appropriations Subcommittee on the Interior and the Environment,have introduced the Endocrine Disruptor Screening Enhancement Act (HR 5210), which is designed to update the US Endocrine Disruptor Screening Program.
The Bill requires the US Environmental Protection Agency to establish a programme that tests chemicals found in drinking water to determine whether they are endocrine disruptors and if so, to determine the extent of their ability to interfere with the body's hormonal system. The EPA would have to produce a schedule for identifying and testing substances found in drinking water, ensuring that at least 100 chemicals found in drinking water were tested within four years. ...
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And not a moment too soon!
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Wed, May 12, 2010 from CBC:
Perfumes' chemical safety unknown: report
Top-selling fragrances contain chemicals that can trigger allergic reactions or disrupt hormones but are not listed on labels, according to a new report calling for changes in federal regulations.
The report, released Wednesday by Environmental Defence in Canada and the Campaign for Safe Cosmetics in the U.S., assessed 17 fragrances bought in both countries that were tested by an independent laboratory in California. They included Britney Spears' Curious, Calvin Klein Eternity, Abercrombie & Fitch Fierce and Old Spice body spray.
The tests found a dozen or more chemicals not listed on labels, multiple chemicals that can trigger allergic reactions or disrupt hormones, and substances that have not been assessed for safety by the beauty industry's self-policing review panels, the groups said....
An average of 10 sensitizing chemicals that can trigger allergic reactions such as headaches, wheezing, asthma, infant diarrhea and vomiting and reduced pulmonary function, were found in each product.
* An average of four hormone-disrupting chemicals were found in each product. The chemicals may mimic the hormone estrogen.
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Some perfumes just stink.
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Sun, Apr 25, 2010 from Minnesota Public Radio:
Study finds levels of pharmaceuticals in wastewater widespread
In the most comprehensive study of a variety of chemical compounds coming from municipal sewage plants, the Minnesota Pollution Control Agency confirmed widespread, but low concentrations of water contamination from human medications and antibiotics... The study reinforced what earlier researchers learned, that pharmaceutical compounds used by people are very common in rivers and lakes across the state.
Researchers also found another class of chemical compounds in their water samples -- endocrine disruptors proven to alter fish reproduction.
The compounds researchers found most often include carbamazapine, a drug used to treat attention deficit disorder. They also found various antibiotics and diphenhydramine, a common antihistamine. ...
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Dude. We are all so on drugs.
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Thu, Apr 22, 2010 from London Guardian:
'Toxic stew' of chemicals causing male fish to carry eggs in testes
More than 80 percent of the male bass fish in Washington's major river are now exhibiting female traits such as egg production because of a "toxic stew" of pollutants, scientists and campaigners reported yesterday.
Intersex fish probably result from drugs, such as the contraceptive pill, and other chemicals being flushed into the water and have been found right across the US.
The Potomac Conservancy, which focuses on Washington DC's river, called for new research to determine what was causing male smallmouth bass to carry immature eggs in their testes. "We have not been able to identify one particular chemical or one particular source," said Vicki Blazer, a fish biologist with the US geological survey. "We are still trying to get a handle on what chemicals are important."
But she said early evidence pointed to a mix of chemicals -- commonly used at home as well as those used in large-scale farming operations -- causing the deformities. The suspect chemicals mimic natural hormones and disrupt the endocrine system, with young fish being particularly susceptible. ...
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These days it seems men have to do everything!
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Sun, Apr 18, 2010 from Chicago Tribune:
Growing concern in the water
Despite growing health concerns about atrazine, an agricultural weedkiller sprayed on farm fields across the Midwest, most drinking water is tested for the chemical only four times a year -- so rarely that worrisome spikes of the chemical likely go undetected.
High levels of the herbicide can linger in tap water during the growing season, according to more frequent tests in some agricultural communities.
Spread heaviest on cornfields, atrazine is one of the most commonly detected contaminants in drinking water. Studies have found that exposure to small amounts of the chemical can turn male frogs into females and might be more harmful to humans than once thought.
Manufacturers say their own research proves the chemical is safe. But alarmed by other studies, the Obama administration is conducting a broad review that could lead to tighter restrictions. It is also mulling changes in laws that require water utilities to test for atrazine just once a quarter or, in some cases, once a year. ...
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Like I always say, trust the self-interested!
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Sun, Apr 18, 2010 from Yale 360:
As Pharmaceutical Use Soars, Drugs Taint Water and Wildlife
In recent years, scientists have detected trace amounts of more than 150 different human and veterinary medicines in environments as far afield as the Arctic. Eighty percent of the U.S.'s streams and nearly a quarter of the nation's groundwater sampled by the United States Geological Survey (USGS) has been found to be contaminated with a variety of medications.... Drugging our bodies inevitably drugs our environment, too, as many medications can pass through our bodies and waste treatment facilities virtually intact. And it is difficult to predict where and how unexpectedly vulnerable creatures may accrue potentially toxic doses.... A large body of evidence has connected this contamination with excess feminization in fish. In one study, U.S. and Canadian government scientists purposely contaminated an experimental lake in Ontario with around 5 nanograms per liter of ethynyl estradiol, and studied the effects on the lake's fathead minnow population, a common species that fish like lake trout and northern pike feed on.... Exposed to ethynyl estradiol, the male minnows' testicular development was arrested and they started making early-stage eggs instead. That year's mating season was disastrous. Within two years, the minnow population crashed.
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Hey, the world is sick. We do what we always do: medicate.
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Mon, Apr 12, 2010 from Vancouver Sun:
Chemical used in everyday products raises concerns
The majority of liquid antibacterial soaps contain triclosan as an active ingredient to stop the growth of bacteria and to deodorize. It is also contained in toothpaste, facewash, deodorants and cosmetics. More recently, triclosan is also being added as a bacteria-killer to countertops, kitchenware, toys and clothes.
The FDA told Massachusetts congressman Edward Markey the agency shares his "concern" over the potential effects of triclosan in disrupting the body's endocrine system, so the agency is taking another look at the chemical.
"It is the FDA's opinion that existing data raise valid concerns about the effects of repetitive daily human exposure to these antiseptic ingredients."... Smith, who banished triclosan from his home years ago after reading studies identifying the antibacterial agent as a possible carcinogen and endocrine disrupter, saw the levels rise in his body by 2,900 times after using, over a two-day period, brand-name deodorant, toothpaste, anti-bacterial soap and shaving cream containing triclosan. ...
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But I was so glad I used Dial!
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Mon, Apr 5, 2010 from Mount Sinai Hospital, via EurekAlert:
Exposure to 3 classes of common chemicals may affect female development
Researchers at Mount Sinai School of Medicine have found that exposure to three common chemical classes--phenols, phthalates and phytoestrogens--in young girls may disrupt the timing of pubertal development, and put girls at risk for health complications later in life. The study, the first to examine the effects of these chemicals on pubertal development, is currently published online in the journal Environmental Health Perspectives.
"Research has shown that early pubertal development in girls can have adverse social and medical effects, including cancer and diabetes later in life," said Dr. Mary Wolff, Professor of Preventive Medicine and Oncological Sciences at Mount Sinai School of Medicine. "Our research shows a connection between chemicals that girls are exposed to on a daily basis and either delayed or early development. While more research is needed, these data are an important first step in continuing to evaluate the impact of these common environmental agents in putting girls at risk."... Phenols, phthalates and phytoestrogens are among chemicals known as endocrine disruptors, which interfere with the body's endocrine, or hormone, system. They are found in a wide range of consumer products, such as nail polishes, where they increase durability, and in cosmetics, perfumes, lotions, and shampoos, where they carry fragrance. Some are used to increase the flexibility and durability of plastics such as PVC, or are included as coatings on medications or nutritional supplements to make them timed-release. ...
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Phenolical. Or is that "phthalacious"?
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Mon, Apr 5, 2010 from University of Gothenburg, via EurekAlert:
Medicine residues may threaten fish reproduction
Researchers at Umea University and the Sahlgrenska Academy at the University of Gothenburg, Sweden, have discovered that traces of many medicines can be found in fish that have been swimming in treated waste water. One such medicine, the hormone levonorgestrel, was found in higher concentrations in the blood of fish than in women who take the contraceptive pill. Elevated levels of this hormone can lead to infertility in fish.... The fish in the study were exposed to treated waste water from three sewage treatment works in Stockholm, Umea and Gothenburg. The study shows that levonorgestrel - which is found in many contraceptive pills, including the morning-after pill - can impact on the environment and constitutes a risk factor for the ability of fish to reproduce. Levonogestrel is designed to mimic the female sex hormone progesterone and is produced synthetically.
A study from Germany showed very recently that less than a billionth of a gram of levonorgestrel per litre inhibited the reproduction of fish in aquarium-based trials.
"We are finding these levels in treated waste water in Sweden," explains Jerker Fick at the Department of Chemistry at Umea University. ...
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Ah, so it's not overfishing, it's overmedicating.
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Wed, Mar 24, 2010 from Wired:
Chemical From Plastic Water Bottles Found Throughout Oceans
A survey of 200 sites in 20 countries around the world has found that bisphenol A, a synthetic compound that mimics estrogen and is linked to developmental disorders, is ubiquitous in Earth's oceans.
Bisphenol A, or BPA, is found mostly in shatter-proof plastics and epoxy resins. Most people have trace amounts in their bodies, likely absorbed from food containers. Its hormone-mimicking properties make it a potent endocrine system disruptor.
In recent years, scientists have moved from studying BPA's damaging effects in laboratory animals to linking it to heart disease, sterility and altered childhood development in humans.
In their new findings, they showed that BPA-containing hard plastics can break down too, and found BPA in ocean water and sand at concentrations ranging from .01 to .50 parts per million.
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This story seems to imply that humans have some responsibility. What about the natural variation of BPA in the ocean?
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Wed, Mar 3, 2010 from Gatehouse News Service, via Winchester Star:
Markey issues statement on safe drinking water
U.S. Rep. Edward J. Markey, D-Mass., the chairman of the House Energy and Commerce Energy and Environment Subcommittee and the author of a bill to establish a federal ban on the chemical Bisphenol A in all food and beverage containers, issued the following statement recently at a hearing titled "Endocrine Disrupting Chemicals in Drinking Water: Risks to Human Health and the Environment."... "Lately, not a day goes by where the public is not reminded of the presence of toxic chemicals in the air we breathe and the water we drink, and the potential harmful effects that these chemicals can have on public health and the environment.
"Just last week a local newspaper warned that the Potomac River and other mid-Atlantic rivers are laced with toxins that may be responsible for bizarre deformities in fish, frogs and other wildlife that come in contact with the contaminated water. This includes male fish that have begun growing female sexual organs, and female fish that can no longer reproduce.
"W.C. Fields once said, 'I never drink water because of the disgusting things fish do in it.'..." ...
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A deformed little chickadee told me.
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Mon, Mar 1, 2010 from UC Berkeley, via PhysOrg:
Atrazine can turn male frogs into females
Atrazine, one of the world's most widely used [weed killer], wreaks havoc with the sex lives of adult male frogs, emasculating three-quarters of them and turning one in 10 into females, according to a new study by University of California, Berkeley, biologists. The 75 percent that are chemically castrated are essentially "dead" because of their inability to reproduce in the wild, reports UC Berkeley's Tyrone B. Hayes, professor of integrative biology.... Though the experiments were performed on a common laboratory frog, the African clawed frog (Xenopus laevis), field studies indicate that atrazine, a potent endocrine disruptor, similarly affects frogs in the wild, and could possibly be one of the causes of amphibian declines around the globe, Hayes said. ...
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Ribbit.
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Fri, Feb 26, 2010 from Barnstable Patriot:
Cape faces 'daunting challenges' on household chemicals in groundwater
The problem of pharmaceutical and personal care product (PPCP) pollution is an issue that is especially dangerous to Cape Cod's water supply, said Dr. Laurel Schaider, staff scientist at the Silent Spring Institute.
The Cape's unique combination of reliance on septic systems and almost exclusive use of groundwater, she said, makes it easier for contaminants of concern (COCs) to infiltrate wastewater.
Silent Spring Institute maintains a list of potentially hazardous chemicals that includes human and pet prescriptions, cosmetics, caffeine and "endocrine disruptors" such as hormones.
In 2005, said Schaider, a U.S. Geological Survey study found 13 such chemicals in Cape groundwater supplies, including antibiotics, a dry-cleaning solvent, an anti-convulsant prescription and acetaminophen, the active ingredient in Tylenol.
"Everything that goes down your drains and your toilets, that's in the wastewater," she explained. ...
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I thought when I flushed, it stopped existing.
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Thu, Feb 25, 2010 from FASAB, via EurekAlert:
Why BPA leached from 'safe' plastics may damage health of female offspring
New research published online in The FASEB Journal (http://www.fasebj.org) suggests that exposure to Bisphenol A (BPA) during pregnancy leads to epigenetic changes that may cause permanent reproduction problems for female offspring. BPA, a common component of plastics used to contain food, is a type of estrogen that is ubiquitous in the environment.... BPA has been widely used in plastics and other materials. Examples include use in water bottles, baby bottles, epoxy resins used to coat food cans, and dental sealants.... "We need to better identify the effects of environmental contaminants on not just crude measures such as birth defects, but also their effect in causing more subtle developmental errors."... These epigenetic changes caused the mice to over-respond to estrogen throughout adulthood, long after the BPA exposure. This suggests that early exposure to BPA genetically "programmed" the uterus to be hyper-responsive to estrogen. Extreme estrogen sensitivity can lead to fertility problems, advanced puberty, altered mammary development and reproductive function, as well as a variety of hormone-related cancers. BPA has been widely used in plastics and other materials. Examples include use in water bottles, baby bottles, epoxy resins used to coat food cans, and dental sealants. ...
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Are you implying that one can extrapolate that effect to other mammals?
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Thu, Jan 28, 2010 from PhysOrg.com:
Study finds prenatal exposure to certain chemicals affects childhood neurodevelopment
A new study led by Mount Sinai researchers in collaboration with scientists from Cornell University and the U.S. Centers for Disease Control and Prevention, has found higher prenatal exposure to phthalates -- manmade chemicals that interfere with hormonal messaging -- to be connected with disruptive and problem behaviors in children between the ages of 4 and 9 years. The study, which is the first to examine the effects of prenatal phthalate exposure on child neurobehavioral development, will be published January 28, on the Environmental Health Perspectives website.... "There is increasing evidence that phthalate exposure is harmful to children at all stages of development," said Stephanie Engel, PhD, lead study author and Associate Professor of Preventive Medicine at Mount Sinai School of Medicine. "We found a striking pattern of associations between low molecular weight phthalates -- which are commonly found in personal care products -- and disruptive childhood behaviors, such as aggressiveness and other conduct issues, and problems with attention. These same behavioral problems are commonly found in children diagnosed with Attention-Deficit Hyperactivity Disorder (ADHD), Oppositional Defiant Disorder, or Conduct Disorder." ...
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WHAT MAKES YOU THINK I'M AGGRESSIVE??
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Thu, Jan 14, 2010 from BBC (UK):
Arctic polar bears imperilled by man-made pollution
The long term survival of polar bears is being threatened by man-made pollution that is reaching the Arctic.
This conclusion comes from a major review of research into how industrial chemicals such as mercury and organochlorines affect the bears.
The review suggests that such chemicals have a range of subclinical effects.
When added together, these can have a dramatic and potentially fatal impact on the bears' bones, organs and reproductive and immune systems.
The review, an analysis of more than a decade's research into the effect of pollution on bears, is published in the journal Environment International.... These include toxic metals such as mercury, organohalogen contaminants (OHCs) including organochlorines, and polybrominated diphenyl ethers (PBDEs) and perflourinated compounds (PFCs), which are used industrially in insulating fluids, as coolants, in foams and electronics and as pest control agents.
Such chemicals are often fat-soluble and accumulate in the fat of many animals, which are then eaten by top predators such as polar bears. ...
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The invisible hand has a long, long reach.
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Thu, Jan 14, 2010 from Scientific American:
What the EPA's 'Chemicals of Concern' Plans Really Mean
In an unusual exercise of its authority under the Toxic Substances Control Act (TSCA), the U.S. Environmental Protection Agency announced on December 30 the establishment of a "chemicals of concern" list and action plans that could prompt restrictions on four types of synthetic chemicals used widely in manufacturing and consumer products, including phthalates used to make flexible plastics, often for toys, household products and medical equipment.... Of the compounds covered in the action plans -- which also include polybrominated diphenyl ethers (PBDEs), long-chain perfluorinated chemicals (PFCs) and short-chain chlorinated paraffins (SCCPs) -- phthalates and PBDEs will be listed as "chemicals of concern." The PFCs and paraffins will be addressed under other TSCA provisions that could also result in restrictions.
These four types of chemicals, the EPA said, raise "serious environmental or health concerns" and in some cases "may present an unreasonable risk of injury to health and the environment." ...
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Those even sound concern-worthy.
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Sun, Jan 10, 2010 from Lincoln Journal Star:
Atrazine getting new scrutiny from EPA
Nebraska is corn country.
It's also atrazine country.
That means thousands of corn producers are keeping a watchful eye on a new round of EPA scrutiny of one of their cheapest and most effective weed-killing chemicals. News of what's described as a comprehensive evaluation emerged a few weeks ago. As soon as February, the federal environmental regulator expects to seek a scientific peer review of its proposed plan for adding new health studies into its atrazine risk assessment.
Pulling the product off the market is always an option. Atrazine already is banned in Europe.... [Tyrone Hayes, a biologist at the University of California-Berkeley] has been studying mutating effects of atrazine on amphibians, which he said include male frogs developing female organs. He also cited EPA studies that show atrazine's impact as "an endocrine disrupter" that lowers fertility and inhibits puberty in lab rats. ...
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By buying into this system, we essentially are screwing ourselves!
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Wed, Dec 30, 2009 from Associated Press:
Scientists begin testing mussels for pollutants
SAN FRANCISCO -- California scientists hope studying 180 black mussels pried from algae-covered rocks in San Francisco Bay will provide clues into how many drugs and chemicals are polluting waters across the nation.
Mussels filter water and store contaminants in their tissue, providing a record of pollution in the environment. The creatures are being culled from 80 sites in California as part of a pilot study by the National Oceanic and Atmospheric Administration to see how pervasive the substances have become.
"We haven't measured mussels for these compounds, so there's not a lot of data," Dominic Gregorio, a senior environmental scientist with the State Water Resources Control Board, said. "So this is really a first step to be proactive and get ahead of the curve on this." ...
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What, pray tell, HAVE you scientists been doing???
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Sat, Dec 12, 2009 from Milwaukee Journal Sentinel:
It's best to avoid BPA, federal official says
The head of the primary federal agency studying the safety of bisphenol A said Friday that people should avoid ingesting the chemical - especially pregnant women, infants and children.
"There are plenty of reasonable alternatives," said Linda Birnbaum, director of the National Institute of Environmental Health Sciences and the National Toxicology Program, in an interview with the Journal Sentinel.
While stressing she is not a medical doctor, Birnbaum said she has seen enough studies on the chemical to be concerned about its effects on human health... Asked if consumers should be worried about BPA, Birnbaum said, "Absolutely." ...
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Then what are we grown men? Chopped liver?
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Fri, Dec 4, 2009 from Center for Biological Diversity:
Polar Bears Poisoned by Pesticide Pollution: Lawsuit Filed
Pesticides approved by EPA for use in the United States are known to be transported long-distance via various atmospheric, oceanic, and biotic pathways to the Arctic. Such pesticides are biomagnified with each step higher in the food web, reaching some of their greatest concentrations in polar bears, the apex predators of the Arctic.
Pesticides and related contaminants have been linked to suppressed immune function, endocrine disruption, shrinkage of reproductive organs, hermaphroditism, and increased cub mortality in polar bears. Human subsistence hunters in the Arctic, who share the top spot on the food web with the polar bear, also face increased risks from exposure to these contaminants.
"The pesticide crisis is a silent killer that threatens not only the polar bear but the entire Arctic ecosystem and its communities," said Rebecca Noblin, a staff attorney with the Center for Biological Diversity in Anchorage. "The benefits of protecting the polar bear from pesticide poisoning will reverberate throughout the entire Arctic ecosystem, with positive impacts for Arctic people, who share the top of the food pyramid with polar bears." ...
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Has the Arctic warmed enough for a Silent Spring?
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Tue, Nov 24, 2009 from Washington Post:
Six years later, gender-bending fish in our water supply remain a mystery
What's the problem with the Potomac River -- and could whatever it is spell problems for those of us who drink its water?
In 2003, scientists discovered something startling in the Potomac, from which at least 3 million Washington area residents get their drinking water: Male fish were growing eggs. But six years later, a government-led research effort still hasn't answered those two questions. Scientists say they still aren't sure which pollutants are altering the fish, or whether the discovery poses any threat to people's health.
The job is not easy: Scientists are looking for wisps of hormone-mimicking pollutants in the Potomac's vast, moving soup.
...
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I would imagine these intersex fish are a mystery to themselves.
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Mon, Nov 16, 2009 from BBC:
Plastic chemicals 'feminise boys'
Chemicals in plastics alter the brains of baby boys, making them "more feminine", say US researchers.
Males exposed to high doses in the womb went on to be less likely to play with boys' toys like cars or to join in rough and tumble games, they found....Phthalates have the ability to disrupt hormones, and have been banned in toys in the EU for some years.
However, they are still widely used in many different household items, including plastic furniture and packaging.
There are many different types and some mimic the female hormone oestrogen. ...
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Boys will (not) be boys.
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Mon, Nov 16, 2009 from University of Rochester, via EurekAlert:
Pilot study relates phthalate exposure to less-masculine play by boys
A study of 145 preschool children reports, for the first time, that when the concentrations of two common phthalates in mothers' prenatal urine are elevated their sons are less likely to play with male-typical toys and games, such as trucks and play fighting.... Because testosterone produces the masculine brain, researchers are concerned that fetal exposure to anti-androgens such as phthalates -- which are pervasive in the environment -- has the potential to alter masculine brain development... Phthalates are also found in vinyl and plastic tubing, household products, and many personal care products such as soaps and lotions. Phthalates are becoming more controversial as scientific research increasingly associates them with genital defects, metabolic abnormalities, and reduced testosterone in babies and adults. ...
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Maybe this is how we wipe out war!
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Sat, Nov 7, 2009 from London Guardian:
Two-year-olds at risk from 'gender-bending' chemicals, report says
Two-year-old children are being exposed to dangerous levels of hormone-disrupting chemicals in domestic products such as rubber clogs and sun creams, according to an EU investigation being studied by the government.
The 327-page report says that while risks from "anti-androgen" and "oestrogen-like" substances in individual items have been recognised, the cumulative impact of such chemicals, particularly on boys, is being ignored....Phthalates, one of the main anti-androgen chemicals, which are used as softeners in soap, rubber shoes, bath mats and soft toys, have been blamed for blocking the action of testosterone in the womb and are alleged to cause low sperm counts, high rates of testicular cancer and malformations of the sexual organs. ...
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Plan ahead: give all babies androgynous names.
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Sun, Nov 1, 2009 from Greenpeace, via Mongabay:
China's Pearl River suffers from 'almost impossible to remove' pollution
A new study by Greenpeace has found high volumes of heavy metals and organic chemicals in China's Pearl River, which provides drinking water for 47 million people.
In June 2009, Greenpeace took 25 samples from manufacturing facilities' discharge points into the river. They found heavy metals like beryllium, a known carcinogen; manganese which has been linked to brain damage; alkyl phenols which disrupts hormones; and a number of hazardous organic chemicals.... While many of the hazardous pollutants found in the river are not regulated by China, samples from the discharge sites of Kingboard Fogang facility contained beryllium at 25 times the levels allowed by local Chinese regulation, while samples from Wing Fung Printed Circuit Board Ltd. contained 12 times the level of allowed copper. Both companies produce printed circuit boards for the global market. ...
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It's just consumer capitalism's way of dealing with overpopulation.
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Mon, Oct 19, 2009 from Voice of America:
Fish Kills Linked to Water Pollutants
Since 2002 thousands of fish in the United States have died and continue to die in many rivers, most in the rivers of the southern east coast. Researchers have found what they call "the feminization of fish" or the presence of immature eggs in male fish. They have also found different levels of water contamination all related to human activity. The government says twenty percent of male black bass in river basins across the country have immature egg cells in their sexual organs....Scientists have found contaminants such as herbicides, pesticides, estrogen and birth control chemicals in the river. Higher concentrations were found where farming is intense and human population dense. In general, water treatment plants do not remove all chemicals before dumping water back into rivers.
So called endocrine disruptors are especially worrisome because they can change sexual behavior. ...
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Her/him/maphrodite phish.
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Sun, Oct 11, 2009 from ChemicalWatch:
American Chemical Council reacts to study linking maternal BPA exposure to female infant behaviour
A study published by US researchers has found a link between maternal exposure to the plastics intermediate bisphenol A (BPA) in early pregnancy and the behaviour of female children up to the age of two years. The study measured BPA levels taken from urine samples from 249 women at 16 and 26 weeks' gestation, and then assessed their children's behaviour up to two years.... Reacting to the study, the American Chemistry Council (ACC) warned that there was a risk that it would be misconstrued given [the study's] many limitations. Before its conclusions could be relied upon, the council said there was a need to replicate the small-scale study with a larger more robust version. ...
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Sure -- why not another five years of possible harm?
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Sat, Oct 10, 2009 from ChemicalWatch:
German institute stresses safety of bisphenol A in baby bottles and binkies
In response to recent questions concerning the safety of giving babies dummies that may contain bisphenol A, the German Federal Institute for Risk Assessment (BfR) has issued an updated FAQ paper to give its latest assessment of the concerns.
In it, the BfR stands by the European Food Safety Authority assessment's recommended tolerable daily intake limits for bisphenol A and concludes: "BfR comes to the conclusion in its scientific assessment that the normal use of polycarbonate bottles does not lead to a health risk from bisphenol A for infants and small children". ...
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Except for that... gender thing.
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Thu, Oct 8, 2009 from PhysOrg.com:
BPA linked to aggressive behavior in young girls, research suggests
The findings, which are preliminary and call for more study, are the first to connect behavior problems in humans with the chemical bisphenol A, which is a key component of plastic bottles, the liners inside canned goods and medical devices.
The chemical leaches from plastic and is detectable at some level in nearly everyone's system. Scientists began to raise concerns about BPA because of its tendency to mimic estrogen -- a hormone that plays a crucial role in establishing the sex differences in the brains of developing fetuses.
Studies in mice have shown fetal BPA exposure can abolish or reverse inherent behavioral differences between the sexes -- specifically, females act more aggressive -- and those studies prompted questions about what the chemical does to humans.... They found that women who had the highest concentrations of BPA at 16 weeks of pregnancy were inclined to have more aggressive, hyperactive 2-year-old daughters. There was no statistically significant change of behavior among the boys, although there was some evidence of heightened anxiety and depression. ...
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What's next, playground fights where manly-girls bully the girly-men?
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Thu, Oct 1, 2009 from US News and World Report:
Common Weed Killer Impacts Wildlife
An analysis of more than 100 scientific studies conducted on atrazine, one of the world's most common and controversial weed killers, reveals the chemical's consistent ill effects on the development, behavior, immune, hormone and reproductive systems of amphibians and freshwater fish, USF researchers have concluded in a new study.... [T]he body of scientific research on the chemical shows that while atrazine typically does not directly kill amphibians and fish, there is consistent scientific evidence that it is negatively impacting their biology. The authors conclude that these non-lethal effects must be weighed against the benefit of using the weed killer.... "The weight-of-evidence, however, suggests that atrazine regularly causes reproductive abnormalities and is an endocrine disruptor." ...
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Thank goodness we have so little in common with amphibians and fish!
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Tue, Sep 29, 2009 from Florida Today:
Cocoa Beach plans sewage injection well
The city plans to inject up to 6 million gallons of treated sewage per day about 1,400 feet underground, then pump it back up later to water its golf course and residents' lawns. Officials say the well will enable the city to store more reclaimed water and no longer have to discharge the excess -- an estimated 300 million gallons per year -- into the Banana River.... Officials insist that the so-called "aquifer storage and recovery" wells are the safest, most affordable way to keep the nitrogen- and phosphorus-rich remnants of sewage from the Indian River Lagoon, where it can trigger excess algae and fish kills. But some environmentalists say pumping that kind of water underground threatens surrounding groundwater with viruses, endocrine disruptors and other trace contaminants that can linger after the sewage treatment process. ...
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Come on, you "environmentalists." We have to put our shit somewhere.
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Tue, Sep 22, 2009 from Environmental Expert (UK)h:
New chemical pollutants? Research finds fluorochemicals in water samples
Another contaminant found in Canadian groundwater samples may join the list of environmental substances that could be harmful to humans and the environment....
The newest potential threat to human health and the environment is fluorochemicals known as perfluorinated phosphoric acids (PFPAs), which were found in water samples taken for study in the past decade from Canadian creeks, rivers and, waste treatment effluents.
PFPAs were found at 24 of 30 sites used in the research....
PFPAs are used commercially as leveling and wetting agents and to defoam additives used in pesticide formulations. Similar fluorochemicals have been used for industrial purposes since the 1950s but were not identified as widespread environmental contaminants until 2001. As noted in the article, PFPAs lack hydrogen atoms and may resist degradation, like other fluorochemicals such as PFCAs and PFSAs -- perfluorinated carboxylic and sulfonic acids -- that once were used commercially and now are regulated in the United States and Canada.
"From the analysis of Canadian surface waters, low-level PFPA contamination clearly is widespread," according to the authors. ...
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Thank god I'm acronym-challenged. It's just too hard to remember what these things mean!
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Mon, Sep 14, 2009 from Miller-McCune:
Divining the Secret of Deformed Roadkill
Hard as it is to be a voice in the wilderness, Judy Hoy has been sounding an alarm in southwestern Montana for more than 13 years.
For years she's been documenting, through autopsies, photos, articles and scientific papers, changes -- mutations, really -- she's observed in various ungulate species in the valley. In particular, she's seen malformed genitalia among male white-tailed deer. Such observations are not unique. More and more scientists are documenting reproductive changes in male animals ranging from cricket frogs to polar bears. But the response from public health and governmental agencies has been underwhelming.... In 1996, the Hoys noticed something strange among the roadkill. "It started with Buck No. 9," Judy said. "We called him that because he was the ninth buck we had seen with malformed genitalia."... The next year, 25 of 49 males had anomalies in their genitals. Between 1998 and 2000, two-thirds of the bucks examined had abnormalities.... She described examining different endocrine-disrupting compounds, like a detective at a murder scene, eliminating suspects until she met up with chlorothalonil, a broad-spectrum fungicide. It had been the go-to fungicide in 1994 when neighboring farmers in Idaho were fighting potato blight. ...
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Hmm... could endocrine disruptors could be used for good, rather than evil?
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Sat, Aug 29, 2009 from American Chemical Society, via EurekAlert:
Plastics in oceans decompose, release hazardous chemicals, surprising new study says
In the first study to look at what happens over the years to the billions of pounds of plastic waste floating in the world's oceans, scientists are reporting that plastics -- reputed to be virtually indestructible -- decompose with surprising speed and release potentially toxic substances into the water.... "We found that plastic in the ocean actually decomposes as it is exposed to the rain and sun and other environmental conditions, giving rise to yet another source of global contamination that will continue into the future."
He said that polystyrene begins to decompose within one year, releasing components that are detectable in the parts-per-million range.... his team found that when plastic decomposes it releases potentially toxic bisphenol A (BPA) and PS oligomer into the water, causing additional pollution. Plastics usually do not break down in an animal's body after being eaten. However, the substances released from decomposing plastic are absorbed and could have adverse effects. BPA and PS oligomer are sources of concern because they can disrupt the functioning of hormones in animals and can seriously affect reproductive systems. ...
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At least we'll eventually be rid of that unsightly Pacific Garbage Patch!
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Mon, Aug 24, 2009 from Huffington Post:
EPA Fails To Inform Public About Weed-Killer In Drinking Water
Records that tracked the amount of the weed-killer atrazine in about 150 watersheds from 2003 through 2008 were obtained by the Huffington Post Investigative Fund under the Freedom of Information Act. An analysis found that yearly average levels of atrazine in drinking water violated the federal standard at least ten times in communities in Illinois, Indiana, Ohio, and Kansas, all states where farmers rely heavily on the herbicide.
In addition, more than 40 water systems in those states showed spikes in atrazine levels that normally would have triggered automatic notification of customers. In none of those cases were residents alerted....
In recent years atrazine has been the subject of intensive debate among scientists about its effects on the reproductive systems of frogs and other vertebrate animals. In some studies, male frogs that were exposed to high levels of atrazine have been documented to grow eggs. ...
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It tastes just the same as pthalates or PCBs -- so nobody noticed!
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Tue, Aug 18, 2009 from Mongabay, via Treehugger via BoingBoing:
Pesticide use linked to dying frogs in California
Don Sparling of Southern Illinois University Carbondale found that minute quantities of endosulfan -- the active ingredient in many pesticides -- was enough kill frogs.
"At 0.8 parts per billion, we lose all of them," Sparling said. 8 parts per billion is the equivalent of a dozen salt grains dissolved in 500 gallons of water.
"We always thought there was an association between pesticides and declining amphibian populations, and we're building up a body of evidence to show this is the case."
Sparling and colleagues found that endosulfan are making their way, likely via wind currents, into critical frog habitat, triggering die-offs among Pacific tree frogs and foothill yellow-legged frogs, which are native to meadows in California's Sierra Mountains.... "These pesticides are applied by airplanes and we found that the wind would blow some of it up into the mountains, for instance. In other cases, these chemicals would volatize after being applied, turning into a gaseous state, which could also be picked up and spread into the mountains by wind." ...
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That is the ugliest canary I've ever seen.
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Wed, Aug 12, 2009 from University of Minnesota, via EnvironmentalResearchWeb:
University of Minnesota researchers discover high levels of estrogens in some industrial wastewater
In a groundbreaking study, civil engineering researchers in the University of Minnesota's Institute of Technology have discovered that certain industries may be a significant source of plant-based estrogens, called phytoestrogens, in surface water. They also revealed that some of these phytoestrogens can be removed through standard wastewater treatment, but in some cases, the compounds remain at levels that may be damaging to fish.... They found very high concentrations of these hormone-mimicking phytoestrogens -- up to 250 times higher than the level at which feminization of fish has been seen in other research -- in the wastewater discharged from eight industrial sites, including biodiesel plants, a soy milk factory, a barbecue meat processing facility and a dairy. They also detected high concentrations of phytoestrogens in the water discharged by some municipal wastewater treatment plants.
The good news is that the researchers revealed that phytoestrogens can be removed from water as it goes through standard treatment. In fact, they saw more than 90 percent removal of these compounds from the water. Unfortunately, sometimes 99 percent removal is needed to reach levels that are considered harmless to fish. ...
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Oh, poor Alex... um, Alexandra.... uh, Sasha!
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Tue, Aug 11, 2009 from Environmental Health News:
Germ-killing chemical from soaps, toothpaste building up in dolphins
Dolphins are swimming in waters tainted with germ-killing soaps, but they aren't winding up squeaky clean.
Triclosan, an antibacterial chemical found in everyday bathroom and kitchen products, is accumulating in dolphins at concentrations known to disrupt the hormones and growth and development of other animals.
Scientists have found that one-third of the bottlenose dolphins tested off South Carolina and almost one-quarter of those tested off Florida carried traces of triclosan in their blood. It is the first time the chemical has been reported in a wild marine mammal – a worrisome finding, researchers say, because it shows it is building up in the ocean’s food web.
Triclosan is the germ-killing chemical of choice in hundreds of products, including liquid hand soaps, toothpaste, deodorants and cutting boards. Now some scientists are calling for its removal from consumer products. ...
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I prefer my dolphins minty fresh!
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Sun, Aug 2, 2009 from Glasgow Sunday Herald:
Half of all the fruit & veg you buy is contaminated
ALMOST HALF of the fresh fruit and veg sold across the UK is contaminated with toxic pesticides, according to the latest scientific surveys for the government...
Alarmingly, as much as a quarter of the food on sale in 2008 - the date of the latest figures - was found to contain multiple pesticides. In some cases, up to ten different chemicals were detected in a single sample.
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Experts warn that the "cocktail effect" of so many different chemicals endangers health. They also point out that some of the pesticides are not only cancer-causing but also so-called "gender-benders" - chemicals that disrupt human sexuality. ...
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I'll drink to that!
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Sat, Jul 4, 2009 from Examiner.com:
EPA agrees to tackle the feminization of wild fish
It took a lawsuit, but the EPA today announced the first step toward regulating a chemical that can cause male fish to develop female sex characteristics. The chemical, nonylphenol ethloxylate (NPE), is used in cleaning products and detergents.
Studies show that NPEs can change the biology of male fish so they grow female eggs at very low levels, said Albert Ettinger of the Environmental Law and Policy Center, in a statement. "The EPA ignored these studies because there was insufficient evidence of the impact on fish reproduction."... Other well-known sources of estrogen and estrogen-mimicking compounds, also called "endocrine disruptors," are birth control pills, hormone replacements and hormones from livestock operations discharged from wastewater treatment plants.... U.S. Geological Survey researchers first found "intersex" fish locally in 2003 in the Potomac and Shenandoah rivers. Since then, the number of these fish has increased year after year, and they are found most often near agricultural or high population areas.
In April, the U.S. Fish and Wildlife and the USGS released a study that showed at least 82 percent of male smallmouth bass and 23 percent of the largemouth bass in the Potomac watershed have immature female germ cells in their reproductive organs. ...
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Those largemouth bass need to catch up! Less than a quarter feminized? Pfft.
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Mon, Jun 29, 2009 from Durango Herald (Colorado):
Expert questions gas-drilling chemicals
The toxic chemicals used to extract natural gas from deep underground and process it are among substances creating a dizzying list of embryonic -- and subsequent -- developmental aberrations in animals, including humans, an environmental health analyst is set to say tonight.... "I'll be talking about what we know about the chemicals used in drilling for and production of natural gas," Colborn said by telephone from Paonia. "I won't talk about exposure, but I'll explain what we know about the health effects from the chemicals."
A Durango nurse was sickened in July 2008 after she treated a gas-field employee who had cleaned a chemical spill near Bayfield. Bayfield is in the San Juan Basin, which includes much of the southern part of La Plata County, and is one of the largest gas fields in the country.... "The problem is non-disclosure on the part of the industry. They're not telling us everything," Colborn said. "We have limited information." ...
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Hey, it seems fine to me!
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Wed, Jun 3, 2009 from University of Minnesota:
U of M Study says Minnesota households flushing 25 percent more pharmaceuticals, household chemicals than 30 years ago
In addition to a 25 percent overall increase in medicines and chemicals in the wastewater, researchers found caffeine in all samples; salicylic acid (the active compound in aspirin) was in 75 percent of samples, ibuprofen in 50 percent and endocrine disruptors -- typically found in birth control pills and hormone replacement products -- in nearly 85 percent. Researchers also found that water use did not vary from season to season, but was affected by the household's age, with younger households using nearly twice the amount of water per person than households with occupants 55 and older.
The good news is a 33 percent decrease in the amount of oil and grease flushed down the drain. Concentrations of phosphates were also down —due to phosphate-free detergents and household cleansers—while the amount of nitrogen in household wastewater remained the same.
...
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What's that? Hormones are tasty?
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Tue, May 5, 2009 from Washington Post:
For Old Drugs, New Tricks
...leftover pills can seem so small, so easily disposable, that many people routinely flush them down toilets, wash them down sinks or throw them in trash that goes to a landfill.
And then they often end up in places where they shouldn't be, like the public water supply.
The average American takes more than 12 prescription drugs annually, with more than 3.8 billion prescriptions purchased each year, according to the Kaiser Family Foundation. The most commonly cited estimates from Environmental Protection Agency researchers say that about 19 million tons of active pharmaceutical ingredients are dumped into the nation's waste stream every year.
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Funny how I always feel my mood elevated after a cool drink of tapwater.
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Mon, May 4, 2009 from New York Times:
Earlier Puberty in European Girls
A 15-year study of young girls in Denmark found that the average age of breast development has fallen by a full year compared to girls studied in the early 1990s.
The findings, published this month in the journal Pediatrics, add to a growing body of evidence that the timing of puberty is changing, possibly related to environmental exposure to endocrine-disrupting chemicals that mimic estrogen in the body.... The average age for breast development among the current generation of girls was 9.86 years, compared to an average age of 10.88 years among the children studied in the early 1990s. ...
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At this rate, girls will be born with breasts by the year 2143.
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Sun, Apr 26, 2009 from Baltimore Sun:
Potomac 'intersex' fish mystery deepens
Federal biologists checking the upper Potomac River have found that abnormalities in bass there are even more widespread than they'd earlier reported. But they're no nearer to understanding what's causing it.
At least 82 percent of male smallmouth bass and 23 percent of the largemouth bass had immature female germ cells in their reproductive organs, according to a release by the U.S. Fish and Wildlife Service and U.S. Geological Survey. Abnormalities also were found in some female fish.... Scientists think the abnormalities may be linked to hormone-like chemicals in medicines and a variety of consumer products. They had theorized that the contaminants, known as endocrine disruptors, were getting in the river from wastewater treatment plants that discharge into it. But the problems are not limited to areas downstream from sewage plants, they found. ...
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Mutations inside the Beltway? It's gotta be Obama's fault!
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Wed, Apr 22, 2009 from Frontline:
Poisoned Water
More than three decades after the Clean Water Act, iconic American waterways like the Chesapeake Bay and Puget Sound are in perilous condition and facing new sources of contamination.
With polluted runoff still flowing in from industry, agriculture and massive suburban development, scientists note that many new pollutants and toxins from modern everyday life are already being found in the drinking water of millions of people across the country and pose a threat to fish, wildlife and, potentially, human health. ...
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The earth... she is our toilet.
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Sat, Apr 4, 2009 from Scientific American:
Are some chemicals more dangerous at low doses?
There are some 82,000 chemicals used commercially in the U.S., but only a fraction have been tested to make sure they're safe and just five are regulated by the U.S. Environmental Protection Agency (EPA), according to congressional investigators. But a government scientist says there's no guarantee testing actually rules out health risks anyway.
The basic premise of safety testing for chemicals is that anything can kill you in high enough doses (even too much water too fast can be lethal). The goal is to find safe levels that cause no harm. But new research suggests that some chemicals may be more dangerous than previously believed at low levels when acting in concert with other chemicals. ...
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Is it just me... or is it time to find a new, pristine planet!
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Sun, Mar 29, 2009 from Scientific American:
Some Food Additives Mimic Human Hormones
A discovery that two commonly used food additives are estrogenic has led scientists to suspect that many ingredients added to the food supply may be capable of altering hormones.
More than 3,000 preservatives, flavorings, colors and other ingredients are added to food in the United States, and none of them are required to undergo testing for estrogenic activity, according to the Food and Drug Administration.... The first food additive, propyl gallate, is a preservative used to prevent fats and oils from spoiling that can be found in a range of foods including baked goods, shortening, dried meats, candy, fresh pork sausage, mayonnaise and dried milk.
The second additive, 4-hexyl resorcinol, is used to prevent shrimp, lobsters, and other shellfish from discoloring.
...
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Are you so sure that those preservatives aren't preserving us? Hunh?
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Fri, Mar 27, 2009 from Environmental Health News:
Food may contain environmental estrogens
A discovery that two commonly used food additives are estrogenic has led scientists to suspect that many ingredients added to the food supply may be capable of altering hormones.
More than 3,000 preservatives, flavorings, colors and other ingredients are added to food in the United States, and none of them are required to undergo testing for estrogenic activity, according to the Food and Drug Administration.
"We need to be mindful of these food additives because they could be adding to the total effect of other estrogen mimicking compounds we're coming into contact with," said Clair Hicks, a professor of food science at the University of Kentucky and spokesperson for the Institute of Food Technologists, a nonprofit scientific group.
"The benefits of using these additives in food need to be weighed against the risks they present," Hicks said. ...
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I really have to watch my figure now!
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Thu, Mar 26, 2009 from Springer, via EurekAlert:
Hormone-mimics in plastic water bottles
In an analysis of commercially available mineral waters, the researchers found evidence of estrogenic compounds leaching out of the plastic packaging into the water. What's more, these chemicals are potent in vivo and result in an increased development of embryos in the New Zealand mud snail. These findings, which show for the first time that substances leaching out of plastic food packaging materials act as functional estrogens, are published in Springer's journal Environmental Science and Pollution Research.... "We must have identified just the tip of the iceberg in that plastic packaging may be a major source of xenohormone contamination of many other edibles. Our findings provide an insight into the potential exposure to endocrine-disrupting chemicals due to unexpected sources of contamination." ...
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I like my estrogenic compounds chilled.
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Tue, Mar 3, 2009 from Associated Press:
Study: Combining pesticides makes them more deadly for fish
Common agricultural pesticides that attack the nervous systems of salmon can turn more deadly when they combine with other pesticides, researchers have found.
Scientists from the NOAA Fisheries Service and Washington State University were expecting that the harmful effects would add up as they accumulated in the water. They were surprised to find a deadly synergy occurred with some combinations, which made the mix more harmful and at lower levels of exposure than the sum of the parts.
The study looked at five common pesticides: diazinon, malathion, chlorpyrifos, carbaryl and carbofuran, all of which suppress an enzyme necessary for nerves to function properly.
The findings suggest that the current practice of testing pesticides - one at a time to see how much is needed to kill a fish - fails to show the true risks, especially for fish protected by the Endangered Species Act, the authors concluded in the study published Monday in the journal Environmental Health Perspectives. ...
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Like I'm supposed to be soooo surprised by "a deadly synergy"?
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Mon, Feb 23, 2009 from Environmental Health News:
A worldwide pollutant may cause gene loss
A new study suggests that long term exposure to a common water pollutant reduced the genetic diversity of the midge - a common water insect.
Aquatic insects are the foundation of healthy waterways. Other insects, invertebrates and fish depend on the tiny creatures for food. A loss of their genetics is a loss for ecosystem diversity.
The pollutant, called tributyltin (TBT), is a widely used pesticide. While TBT affected the growth, survival and reproduction of the midge insect, the greatest effects were found in the genes. TBT-exposed insects lost gene diversity two times greater than non-exposed insects.... Most toxicity studies look at high dose, single generation effects. But, in reality, organisms -- including humans -- are exposed to low-levels of chemicals over long periods, sometimes for many generations. Little is known about how these types of exposures may affect health.
In this study, scientists exposed the midge to TBT at levels found in the environment for 12 generations. They monitored growth, weight, mortality and genetic diversity, which was determined by studying DNA sequences known as microsatellites. ...
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If I were a midge, I'd be worried. Thank goodness I don't share any DNA with midges!
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Tue, Feb 17, 2009 from University of Cincinnati, via EurekAlert:
Estrogen found to increase growth of the most common childhood brain tumor
CINCINNATI -- University of Cincinnati (UC) researchers have discovered that estrogen receptors are present in medulloblastoma -- the most common type of pediatric brain tumor -- leading them to believe that anti-estrogen drug treatments may be beneficial in limiting tumor progression and improving patients' overall outcome. ...
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As a toxically feminized male, I have a headache.
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Tue, Feb 17, 2009 from Mount Holyoke News:
Toxic BPA found in everyday products
Epidemiological studies have shown that endocrine disruptors like BPA and other foreign chemicals, also known as xenobiotics, can influence the onset of precocious puberty, increase infertility and accelerate the progression of breast, vaginal, prostate and uterine cancer.... Recently, there has been a number of controversial discussions about safe levels of BPA exposure. The Environmental Protection Agency and the FDA currently warn against no more than 50 [micrograms] of BPA per kilogram of body weight per day. Recent research shows evidence that many of the abnormalities observed were at far lower concentration levels of BPA. ...
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Luckily, I'm a man, and so am impervious to danger.
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Fri, Feb 6, 2009 from MedPage Today:
Bisphenol A Mimics Estrogen, Phthalates Target Testosterone
Although they have been linked to reproductive problems in both sexes, bisphenol A (BPA) and phthalates -- common chemicals found in household plastics -- have gender-specific effects.... "BPA looks like estrogen," Dr. Taylor, whose research focuses on uterine development and endocrine disruption, said of its chemical structure. "By itself it is a very weak estrogen."
... Mice that were exposed to BPA as fetuses developed abnormalities of the ovaries, uterus, and vagina, Dr. Taylor said. Other murine studies found genetic abnormalities in eggs, an increased risk of mammary cancers, and early puberty in females....
Phthalates, on the other hand, have antiandrogenic effects, Dr. Taylor said.
Studies in male animals have found reduced sperm production, undescended testes, hypospadias, decreased testosterone production, and reduced anogenital distance. ...
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BPA and Phthalates -- an unspeakable acronym and an unpronounceable word. How can we talk about them?
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Sat, Jan 31, 2009 from The Herald News (MA):
Flowing medicine cabinet
PATANCHERU, India -- When researchers analyzed vials of treated wastewater taken from a plant where about 90 Indian drug factories dump their residues, they were shocked. Enough of a single, powerful antibiotic was being spewed into one stream each day to treat every person in a city of 90,000.
And it wasn't just ciprofloxacin being detected. The supposedly cleaned water was a floating medicine cabinet -- a soup of 21 different active pharmaceutical ingredients, used in generics for treatment of hypertension, heart disease, chronic liver ailments, depression, gonorrhea, ulcers and other ailments. Half of the drugs measured at the highest levels of pharmaceuticals ever detected in the environment, researchers say. Those Indian factories produce drugs for much of the world, including many Americans. The result: Some of India's poor are unwittingly consuming an array of chemicals that may be harmful, and could lead to the proliferation of drug-resistant bacteria.... "I'll tell you, I've never seen concentrations this high before. And they definitely ... are having some biological impact, at least in the effluent," said Dan Schlenk, an ecotoxicologist from the University of California, Riverside, who was not involved in the India research. ...
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Boy, am I glad we're not responsible. We only buy the drugs from their factories.
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Fri, Jan 30, 2009 from UCLA, via EurekAlert:
Household chemicals may be linked to infertility
[P]erfluorinated chemicals, or PFCs -- chemicals that are widely used in everyday items such as food packaging, pesticides, clothing, upholstery, carpets and personal care products -- may be associated with infertility in women.... In addition to being found in household goods, PFCs, the class of chemicals to which PFOS and PFOA belong, are used in manufacturing processes involving industrial surfactants and emulsifiers. They persist in the environment and in the body for decades.... The researchers say the biological mechanisms by which exposure to PFOS and PFOA might reduce fertility are unknown, but PFCs may interfere with hormones that are involved in reproduction. ...
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It's the gift that keeps on taking!
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Thu, Jan 22, 2009 from Tucson Citizen:
UA lab to check for emerging contaminants such as Prozac, estrogen
The Arizona Laboratory for Emerging Contaminants, known as ALEC, uses super-sensitive instruments to test water, soil and tissue for minute amounts of substances such as uranium, heavy metals and organic compounds, including pharmaceuticals, said Jon Chorover, co-director of the lab.... Emerging contaminants are substances -- including Viagra, estrogen and Prozac that are raising alarms as potential hazards when found in water or foods containing or grown with contaminated water.
These contaminants are a growing concern in Arizona, where water is a precious resource. ...
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But what happens if they find these contaminants? Is there a market for recycled Viagra?
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Thu, Jan 22, 2009 from Guardian (UK):
New research on common chemical raises concerns
More doubts have been raised over the safety of a common chemical found in hard plastic food containers and bottles, and metal cans. High levels of the chemical, called bisphenol A, appear to be linked to heart problems and type 2 diabetes, a new study has found.... Researchers have now done a study looking at 1,455 American adults, to see whether high levels of BPA in people's bodies could be linked to health problems.... The results showed that people with higher concentrations of BPA in their urine were also more likely to have heart problems or type 2 diabetes. They also had a higher chance of having chemical changes in their body, which suggested their livers might not be working as well as they should. ...
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It wasn't my youthful indiscretions? It was the plastic I grew up with?
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Tue, Jan 13, 2009 from Brisbane Courier-Mail:
Two-headed fish larvae blamed on farm chemicals in Noosa River
CHEMICAL contamination from farm runoff has been blamed after millions of fish larvae in the Noosa River were found to have grown two heads.
The disfigured larvae are thought to have been affected by one of two popular farm chemicals, either the insecticide endosulphan or the fungicide carbendazim.
Former NSW fisheries scientist and aquaculture veterinarian Matt Landos yesterday called on the Federal Government to ban the chemicals and urgently find replacements.
Dr Landos said about 90 per cent of larvae spawned at the Sunland Fish Hatchery from bass taken from the river were deformed and all died within 48 hours. ...
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I guess this is a case where two heads AREN'T better than one!
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Sat, Dec 27, 2008 from Reuters:
Pollution at home often lurks unrecognized
NEW YORK (Reuters Health) - Many people may be surprised by the number of chemicals they are exposed to through everyday household products, a small study finds, suggesting, researchers say, that consumers need to learn more about sources of indoor pollution.
In interviews with 25 women who'd had their homes and bodies tested for various environmental pollutants, researchers found that most were surprised and perplexed by the number of chemicals to which they'd been exposed.... The term "fragrance" on household-product labels can signal the presence of potentially harmful chemicals. One of the uses of phthalates, for example, is to stabilize fragrances. ...
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I'd rather die than my home have housatosis!
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Wed, Dec 17, 2008 from Genetic Engineering News via EurekAlert:
Benefits of breastfeeding outweigh risk of infant exposure to environmental chemicals in breastmilk
A study comparing breastfed and formula fed infants across time showed that the known beneficial effects of breastfeeding are greater than the potential risks associated with infant exposure to chemicals such as dioxins that may be present in breastmilk, according to a report published in the December issue (Volume 3, Number 4) of Breastfeeding Medicine, a peer-reviewed journal published by Mary Ann Liebert, Inc. (www.liebertpub.com) and the official journal of the Academy of Breastfeeding Medicine. The paper is available free online at www.liebertpub.com/bfm.... [T]his study's findings, based on epidemiologic data, do not downplay the adverse effects of exposure to dioxins and other environmental toxins. However, the authors distinguish between the statistical significance of risk/benefit assessments in an individual compared to population effects. ...
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Why in God's name are we even having to have such a study? What part of "Natural Systems Deficit Disorder" does this fall into?
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Sun, Dec 14, 2008 from Infection Control Today:
Antibacterial Personal Hygiene Products May Not Be Worth Potential Risks
A recent study by UC Davis researchers calls into question the widespread use of two active ingredients -- triclocarban and triclosan -- in personal hygiene products, including antibacterial bar and liquid soaps. Using human and animal cell lines, researchers found that triclocarban disrupts reproductive hormone activity and triclosan interferes with a type of cell signaling that occurs in brain, heart and other cells.... "We decided to take a look at triclocarban and triclosan because these compounds appeared to be building up in the environment," said Bruce Hammock, a Superfund Basic Research Program investigator and professor of entomology. The compounds are also increasingly being detected in human breast milk and urine, he said.... Because of feedback loops in the body, amplification of these hormones could have the effect of depressing natural estrogen and androgen production, potentially impacting fertility and other hormone-dependent processes. ...
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You mean... I shouldn't be glad I used Dial?!
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Sun, Dec 7, 2008 from London Independent:
It's official: Men really are the weaker sex
The male gender is in danger, with incalculable consequences for both humans and wildlife, startling scientific research from around the world reveals.
The research – to be detailed tomorrow in the most comprehensive report yet published – shows that a host of common chemicals is feminising males of every class of vertebrate animals, from fish to mammals, including people.
Backed by some of the world's leading scientists, who say that it "waves a red flag" for humanity and shows that evolution itself is being disrupted, the report comes out at a particularly sensitive time for ministers. On Wednesday, Britain will lead opposition to proposed new European controls on pesticides, many of which have been found to have "gender-bending" effects. ...
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This is why I enjoy being a girl!
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Sat, Dec 6, 2008 from San Jose Mercury News:
Bug off! Green pest control methods
The seemingly endless bottles of pesticides that line the shelves of our nearest hardware store all contain warnings that the chemical compounds found within may be hazardous to our health. They advise us to avoid contact with eyes and skin and to keep out of reach of children and pets. These "precautions" do not exactly inspire confidence, but they are also studiously vague about the potential consequences of exposure.
With this problem in mind, the Pesticide Action Network has created an online database rating 368,974 of the most common and uncommon pesticides, herbicides and fungicides according to the toxicity of their ingredients www.pesticideinfo.org.
Searching the database for information about the toxic effects of many of the well-known brands is easy. For instance, according to the PAN database, Propoxur, one of the active ingredients in Raid, is known to be acutely toxic, neurotoxic and carcinogenic, as well as a groundwater contaminant. In other words, depending on the level of exposure, it can cause symptoms ranging from tremors, nausea and weakness to cancer, paralysis and death. That's not something I would like to unleash in my home. ...
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Is knowledge power?
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Mon, Dec 1, 2008 from Bioscience, via EurekAlert:
Persistent pollutant may promote obesity
Tributyltin, a ubiquitous pollutant that has a potent effect on gene activity, could be promoting obesity, according to an article in the December issue of BioScience. The chemical is used in antifouling paints for boats, as a wood and textile preservative, and as a pesticide on high-value food crops, among many other applications.... The rise in obesity in humans over the past 40 years parallels the increased use of industrial chemicals over the same period. Iguchi and Katsu maintain that it is "plausible and provocative" to associate the obesity epidemic to chemical triggers present in the modern environment. Several other ubiquitous pollutants with strong biological effects, including environmental estrogens such as bisphenol A and nonylphenol, have been shown to stimulate the growth of fat storage cells in mice. The role that tributyltin and similar persistent pollutants may play in the obesity epidemic is now under scrutiny. ...
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So it's not all that fast food and laziness? Whew!
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Fri, Nov 21, 2008 from Imperial College, via EurekAlert:
Hairspray is linked to common genital birth defect, says study
Women who are exposed to hairspray in the workplace during pregnancy have more than double the risk of having a son with the genital birth defect hypospadias, according to a new study published today in the journal Environmental Health Perspectives.
The study is the first to show a significant link between hairspray and hypospadias, one of the most common birth defects of the male genitalia, where the urinary opening is displaced to the underside of the penis. The causes of the condition are poorly understood.... The study suggests that hairspray and hypospadias may be linked because of chemicals in hairspray known as phthalates. Previous studies have proposed that phthalates may disrupt the hormonal systems in the body and affect reproductive development. ...
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Looks like helmet-head can be dangerous to others!
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Sat, Nov 1, 2008 from USA Today:
Advisers: FDA decision on safety of BPA 'flawed'
A Food and Drug Administration advisory board voted Friday to say that the agency ignored critical evidence suggesting that a controversial plastic chemical bisphenol A, or BPA, could harm children. The FDA's science board, a group of outside experts, voted unanimously to endorse a report that found major flaws in the agency's decision to declare BPA safe.... The science board agreed with the finding that that the FDA was wrong to base its August decision that BPA is safe only on studies funded by the chemical industry. ...
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FDA... BPA... It's all toxic alphabet soup to me!
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Mon, Oct 20, 2008 from Timmins Daily Press (Canada):
Toxic chemicals found in Ottawa River: Memo
Not only is raw sewage flowing into the Ottawa River, so are toxic chemicals.
In a memo sent to city councillors last week deputy manager for infrastructure services Nancy Schepers stated that recent testing found at least 10 chemicals, some of them toxic, in the river that serves as the city's main source of drinking water.
At least one chemical, perfluorobutane sulfonate, can result in birth or developmental effects, affect the brain and nervous system, cause cancer and affect reproduction and fertility.
Raw river water samples taken in April 2008 showed 10 compounds from a list of 51 compounds the city tested for.... "In the long run we may conclude there are health effects or that there are no significant health effects," said Levy. ...
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That long run is pretty short, I'm afraid.
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Sat, Oct 18, 2008 from Calgary Sun (Canada):
Ban on BPA begins today
Canada will be the first country to limit the use of bisphenol A today when it formally declares the chemical a hazardous substance.
The federal government published its decision to place BPA on its list of toxic substances in the Canada Gazette. The decision comes six months after Health Minister Tony Clement announced plans to limit use of the chemical.
The Conservatives said they will now move to ban the importation and sale of baby bottles containing BPA. ...
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Why can't our conservatives do something like that?
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Mon, Oct 13, 2008 from JAMA, via EurekAlert:
Research shows link between bisphenol A and disease in adults
A research team from the Peninsula Medical School, the University of Exeter, the University of Plymouth and the University of Iowa, have found evidence linking Bisphenol A (BPA) to diabetes and heart disease in adults.... BPA is used in polycarbonate plastic products such as refillable drinks containers, compact disks, some plastic eating utensils and many other products in everyday use. It is one of the world's highest production volume chemicals, with over 2.2 million tonnes (6.4 billion pounds) produced in 2003, with an annual growth in demand of between six and 10 per cent each year. ...
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Let's see if we can shift that equation.
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Sun, Oct 12, 2008 from Milwaukee Journal-Sentinel:
Donation raises questions for head of FDA's bisphenol A panel
A retired medical supply manufacturer who considers bisphenol A to be "perfectly safe" gave $5 million to the research center of Martin Philbert, chairman of the Food and Drug Association panel about to make a pivotal ruling on the chemical's safety. Philbert did not disclose the donation, which is nearly 50 times larger than the $210,000 annual budget of the University of Michigan Risk Science Center, where he is founder and co-director. ...
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Conflict of interest is a form of pollution.
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Wed, Oct 8, 2008 from Genetic Engineering and Biotechnology News:
Bisphenol A linked to chemotherapy resistance
Exposure to bisphenol A (BPA) may reduce the effectiveness of chemotherapy treatments, say University of Cincinnati (UC) scientists.
The research study, led by UC's Nira Ben-Jonathan, PhD, says that BPA -- a man-made chemical found in a number of plastic products, including drinking bottles and the lining of food cans -- actually induces a group of proteins that protect cancer cells from the toxic effects of chemotherapy. ...
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Thankfully, the EPA tells us not to worry.
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Fri, Oct 3, 2008 from USA Today:
Exposure to chemical may affect the genitals of baby boys.
Baby boys are more likely to have changes in their genitals — such as undescended testicles and smaller penises — if their mothers were exposed to high levels of a controversial chemical during pregnancy, a new study shows. Virtually everyone has been exposed to the chemicals, called phthalates, which are used in countless plastic products and are found in everything from drinking water to breast milk to household dust, according to the study, published in the current issue of Environmental Research. ...
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Maybe phthalates are just our special little way of making the necessary reductions in population.
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Thu, Oct 2, 2008 from Environmental Research, via EurekAlert:
Six environmental research studies reveal critical health risks from plastic
Exposure to Bisphenol A (BPA), phthalates and flame retardants (PBDEs) are strongly associated with adverse health effects on humans and laboratory animals. A special section in the October 2008 issue of Environmental Research, "A Plastic World," provides critical new research on environmental contaminants and adverse reproductive and behavioral effects.
Plastic products contain "endocrine disrupting chemicals" that can block the production of the male sex hormone testosterone (phthalates used in PVC plastic), mimic the action of the sex hormone estrogen (bisphenol A or BPA used in polycarbonate plastic), and interfere with thyroid hormone (brominated flame retardants or PBDEs used in many types of plastic). ...
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I'm thinking wax paper, glass bottles, and stainless steel containers may be growth industries.
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Tue, Sep 30, 2008 from Los Angeles Times:
California launches broad effort to control hazardous chemicals
California today launched the most comprehensive program of any state to evaluate, label and, in some cases, ban industrial chemicals that are linked to cancer, hormone disruption and other deadly effects on human health.... Instead of a product-by-product approach, two new laws are designed to encompass 80,000 chemicals now in circulation, focus on the most dangerous, widespread substances first and control them at the manufacturing stage, before they leach into the air, water or human skin.
The legislation, Schwarzenegger said, propels California to "the forefront of the nation and the world. . . . With these two bills, we will stop looking at toxics as an inevitable byproduct of industrial production." ...
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Now there's a form of the shapeshifting Terminator that I like!
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Mon, Sep 29, 2008 from McGill Daily (Canada):
Plastic poison resists regulation
It runs in the blood of almost every person in the world. The chemical is Bisphenol A (BPA), a synthetic estrogen that has been used in plastics for decades and interferes with fetal development. In mice it can change the structure of genitalia, reverse sexual differences in the brain, and increase susceptibility to prostate and breast cancers. And although it may cause heart disease and diabetes in humans, few seem to care.... Canada labelled BPA as toxic earlier this year, a designation that allows ministers to regulate its use. Baby bottles containing BPA were banned, and many drink companies took bottles containing BPA off the shelves. So far, no other country has followed suit. ...
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O, Canada! With glowing hearts we see thee rise...
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Fri, Sep 26, 2008 from Daily Green:
Sixteen Hormone Disrupting Chemicals Found in Teen Girls
Laboratory tests reveal adolescent girls across America are contaminated with chemicals commonly used in cosmetics and body care products. Environmental Working Group (EWG) detected 16 chemicals from 4 chemical families -- phthalates, triclosan, parabens, and musks -- in blood and urine samples from 20 teen girls aged 14-19. Studies link these chemicals to potential health effects including cancer and hormone disruption. These tests feature first-ever exposure data for parabens in teens, and indicate that young women are widely exposed to this common class of cosmetic preservatives, with 2 parabens, methylparaben and propylparaben, detected in every single girl tested. ...
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Sixteen contaminants... on your lips and cheek... get absorbed and... make your system weak.
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Fri, Sep 26, 2008 from University of the Basque Country:
Bisexual fish in the Urdaibai estuary
Chemical compounds contaminating water can alter the sexual development of aquatic organisms, giving rise to hermaphrodite creatures with both masculine and feminine gametes. This was the conclusion of a research team from the University of the Basque Country alter analysing mussels and grey mullet in Urdaibai.... [N]umerous chemical compounds in water influence the growth, behaviour, reproduction and the immune function of organisms, due to interference with the endocrine system. This is why these compounds are known as 'endocrine disruptors'. Basically they are alkylphenols (amongst others, breakdown derivatives of domestic detergents and cosmetics), pesticides, plastifiers, petroleum derivatives and synthetic hormones. On occasions, they influence the organisms themselves; otherwise the consequences may appear in the second or third generation. ...
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We started intense alkylphenol distribution in the 60's.... a generation is about 22 years.... Wait! that means my children and grandchildren...
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Wed, Sep 17, 2008 from Natural News:
Wal-Mart Abandons Milk From Hormone-Treated Cows
Wal-Mart said that its decision came in response to rising consumer demand for hormone-free milk.
"We've listened to customers and are pleased that our suppliers are helping us offer Great Value milk from cows that are not treated with rBST," said Wal-Mart general merchandise manager Pam Kohn.
Wal-Mart is the largest grocery retailer in the United States, with more than 4,000 stores, and the country's largest retail seller of organic milk. ...
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Wal-mart's made many cows happier today.
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Mon, Sep 15, 2008 from NewsInferno:
Even More Americans Affected by Pharmaceuticals in Water Than First Believed
After a five-month-long inquiry conducted by the AP earlier this year, it found many communities do not test for drugs in drinking water and those that do often fail to tell customers they have found medications, including antibiotics, anti-convulsants, mood stabilizers, and sex hormones. At that time, medications were found in drinking water supplies in 24 major metropolitan areas. Water providers are not required to test for pharmaceuticals and the EPA's budget for the testing of endocrine disruptors in America's waterways was cut by 35 percent. ...
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Love that dirty water.
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Fri, Sep 5, 2008 from University of Cincinnati, via EurekAlert:
Bisphenol A linked to metabolic syndrome in human tissue
New research from the University of Cincinnati (UC) implicates the primary chemical used to produce hard plastics -- bisphenol A (BPA) -- as a risk factor for metabolic syndrome and its consequences. Metabolic syndrome is a combination of risk factors that include lower responsiveness to insulin and higher blood levels of sugar and lipids. According to the American Heart Association, about 25 percent of Americans have metabolic syndrome. Left untreated, the disorder can lead to life-threatening health problems such as coronary artery disease, stroke and type 2 diabetes. ...
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That's why we put BPA in baby bottles: to harden the babies up to further exposure.
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Tue, Sep 2, 2008 from FoodConsumer.org:
Plastic chemical may raise risk of heart attack, diabetes
A new study suggests that bisphenol A could be more harmful than thought. It has found that the chemical at the level found commonly found in humans' blood can suppress a hormone that protects people from heart attacks and type 2 disease.
The study appeared online in Environmental Health Perspectives August 14, a day before the Food and Drug Administration claimed that bisphenol A is safe at current exposure levels. ...
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FDA to US: "Until all the facts are in, drink up."
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Thu, Aug 28, 2008 from Western Morning News (UK):
'Barmy' pesticides ban blasted
Ministers are to step up pressure on the European Parliament not to press ahead with "barmy plans" to ban three-quarters of pesticides used by farmers.... The opposition has to come from across the continent to ensure that it is "not just Britain whingeing", he said.... The controversy centres on the types of chemicals which Brussels wants to remove. They include banning substances which have "endocrine disrupting properties" that could cause adverse effect in humans.
However, the public is already exposed to such substances through prescribed drugs, meat, peas and beans and products like soya milk. ...
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Oi, guv'nor. Wot rubbish.
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Sat, Aug 23, 2008 from Chemistry World:
Chinese sewage plant study raises concerns
Many water treatment facilities in China are failing to remove toxic organic chemicals and levels of some chemicals are actually increasing during treatment, according to researchers from Nankai University, Tianjin.... One of the chemicals monitored by Sun's team is nonylphenol, released during the breakdown of nonylphenol polyethoxylate detergents. Nonylphenol is an endocrine disrupter... [T]he sewage treatment works only removed 60-70 per cent of nonylphenol polyethoxylate from water... To make matters worse, nonylphenol polyethoxylate degrades into smaller metabolites, such as nonylphenol, which could be 70 times more toxic than their precursors.
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"To make matters worse," indeed.
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Thu, Aug 14, 2008 from Sacramento News and Reviews:
The chemistry of beauty
You know those 12 products women use daily? That adds up to some 168 chemical ingredients, and men's habits total about 85 ingredients. I deposit about 110 chemicals into my body every day.... [C]hronic illness and disease in the United States is on the rise, affecting almost one-half of the population, according to the U.S. Centers for Disease Control and Prevention. As the use of synthetic chemicals post-World War II increased, so did infertility, birth defects in males, testicular cancer and learning disabilities. Breast cancer used to be relegated to post-menopausal women. Now young women in their 20s are afflicted.... This industry is the least regulated under the U.S. Food and Drug Administration. ...
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But heck, at least we'll leave a beautiful corpse!
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Sat, Aug 9, 2008 from Toronto Globe and Mail:
No matter what flame retardant is used, it shows up in the environment
"Another chapter has been added to the troubled history of flame retardants. The latest compounds used to reduce the risk of fire have been found in household dust for the first time.
First, there were polychlorinated biphenyls, which were banned in the 1970s when it became clear that they were highly toxic and were accumulating in people and wildlife.
PCBs were replaced by PBDEs (polybrominated diphenyl ethers), which were used in a wide array of consumer products, including televisions and baby clothing. But then those also showed up in wildlife, including whales in the Arctic." ...
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Ultimately, wouldn't it be safer to occasionally burn up in a fire than to be poisoned by flame retardants?
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Sun, Aug 3, 2008 from Durango Herald (Colorado):
State regulators knew nothing about the gas-field chemical spill
... that ended with a Durango nurse's illness because it happened on tribal land...
Behr removed Marshall's boots, which she said were damp. She and other nurses noticed a strong chemical smell when Marshall walked into the hospital.
"If (he) didn't have any chemical on (him), what the heck were we smelling?" Behr said.
Behr fell ill a few days later, and within a week she was fighting for her life in the intensive care unit....
Delayed symptoms are common after phosphate exposures, said Theo Colburn, president of The Endocrine Disruption Exchange, a Paonia nonprofit agency that has been critical of the chemicals used in gas drilling.
Phosphate "has the ability to shut down the body's ability to produce steroids," Colburn said. This can lead to immune-system failure.
Behr began to recover after her doctor treated her with steroids. ...
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What happens on the Rez, stays on the Rez.
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Fri, Jul 25, 2008 from Downey Patriot:
Getting rid of your TV and a tsunami of waste
[T]he biggest loser to the great HDTV switchover could be our environment. Solid waste managers worry that consumers will opt for HDTV en masse, consigning perfectly good analog TVs to the U.S. waste stream. Eighty to 200 million televisions could be discarded over the next 30 months.... Picture tubes hold up to eight pounds of toxic lead, while television plastic casings contain cancer-causing flame retardants. Other TV toxins can include cadmium, mercury, chromium, beryllium and arsenic. If not recycled, toxic TVs can poison people, soils and groundwater. ...
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But hey, we'll be able to watch the devolution in high def!
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Sat, Jul 12, 2008 from KOMO News:
Increasingly popular caviar raises health concerns
"...As demand for paddlefish caviar has grown, health officials have become as uneasy ... about a variety of toxins found in the eggs, including mercury, chlordane and cancer-causing polychlorinated biphenyls, or PCBs. But advocates say the level of contaminants is below federal safety standards and that most consumers don't eat enough of it to suffer any ill effects... Washington chef and restaurant owner Nora Pouillon said she doesn't serve paddlefish caviar. "I can't with a clear conscience poison my customers," she said. ...
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Boy, let's just hope all chefs feel like that.
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Fri, Jul 11, 2008 from The Japan Times:
Musky hormone disrupter residue found in breast milk
"A minute residue of synthetic musk fragrances, feared to block hormones, has been found in a limited number of sampled breast milk and fat tissues of Japanese women, according to a recent joint study by researchers from three Japanese universities.
While there have been findings of the synthetic compounds -- known as HHCB and AHTN -- in breast milk in the United States and Europe, this was the first study that reported their detection in people in Japan." ...
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"Musky hormone disrupter residue" ... actually, that sounds kind of tasty!
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Tue, Jul 1, 2008 from ABS CBN News Online (Philippines):
Toxic chemical leak will have int'l repercussions: expert
One cargo in the sunken M/V Princess of the Stars off Romblon can very well be a ticking time-bomb.... Quijano rejects claims endosulfan in its raw form poses no immediate threat of contamination.
"The technical grade 92 percent (in the sunken ferry) endosulfan is a highly-concentrated form of the pesticide, so it doesn't need activation before it can be toxic. It is toxic by itself, and as soon as it gets out of the compartment, animals and humans are exposed to immediate and long-term danger of toxicity even in very small amounts," he said. "The level toxic to fish is .03 parts per billion. Assuming the container broke and all 10 tons spread, there can be sufficient concentration to kill fish within a 100 kilometer radius, even humans exposed to acute toxicity." ...
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That's about a 60 mile radius of death, for the metric-impaired.
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Mon, Jun 30, 2008 from ABS CBN News Online (Philippines):
No 'significant' release of toxic chemical yet: experts
The 10 tons of the toxic insecticide, endosulfan, in the [sunken ferry] MV Princess of the Stars' hull is still in a not-so-soluble "solid flake" form, which explains why a chemical disaster hasn't happened in Romblon, a government chemist said.... He said this could explain why the divers have not tested positive for chemical poisoning and why there are yet no reports of fish kills near the sunken ferry.... "It’s really highly-toxic to marine life" ... "a "chemical disaster" would already have happened if the endosulfan was in its ready-to-mix form.... Endosulfan is a severely-restricted [endocrine disrupting] pesticide that can only be used by Del Monte and Dole for their pineapple plantations. Only these two institutional users are allowed to handle the chemical, according to Dr. Norlito Gicana, FPA executive director. ...
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Only Del Monte and Dole? How'd they get that dispensation? And how did this stuff get on a ferry with 800 people?
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Mon, Jun 16, 2008 from Metro News (Canada):
Contaminants poison First Nation reserves
The Aamjiwnaang First Nation reserve near Sarnia is located in the heart of petrochemical manufacturing country. Its soil and water has been found to be contaminated with dioxins, PCBs, pesticides, and metals. The Aamjiwnaang people have to put up with odours, are unable to swim or fish in their rivers and have high rates of asthma in children.... [a]t the Aamjiwnaang First Nation, two girls were born for every boy and it is hypothesized that endocrine disrupters were to blame for this. ...
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The Beach Boys' Surf City comes to southern Ontario.
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Tue, Jun 10, 2008 from NOAA Fisheries Service:
Persistent Man-made Chemical Pollutants Found in Deep-sea Octopods and Squids
New evidence that chemical contaminants are finding their way into the deep-sea food web has been found in deep-sea squids and octopods.... These species are food for deep-diving toothed whales and other predators.... "It was surprising to find measurable and sometimes high amounts of toxic pollutants in such a deep and remote environment," Vecchione said. Among the chemicals detected were tributyltin (TBT), polychlorinated biphenyls (PCBs), brominated diphenyl ethers (BDEs), and dichlorodiphenyl-trichloroethane (DDT). ...
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Maybe we'll end up making the marine life too toxic to eat before we've scraped the ocean clean of them.
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Tue, Jun 3, 2008 from NewsInferno:
BPA Found in Canned Foods
According to recent testing, canned foods sold in Canada have been found to contain BPA concentrations as high as double the levels that prompted many to stop using BPA-laced plastic baby and water bottles. Less than half a cup of tomato sauce or a cup of chicken noodle soup would exceed the lowest dose found in recent research to have an adverse effect on animals.
Bisphenol-A�or BPA�is a fairly ubiquitous chemical that mimics the hormone, estrogen, and is used in polycarbonate plastic products, including baby bottles and metal can coatings and could be linked to a range of hormonal problems. In the lab, BPA is linked to sex-hormone-imbalances, including breast and prostate cancer, early puberty, miscarriage, low sperm count, and immune-system changes. ...
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Wait, Popeye always had a can of spinach, and it made him more manly....
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Sun, Jun 1, 2008 from In These Times, in AlterNet:
Will the Toxic Sludge Industry Be Held Accountable for Human Health Risks?
"... and we have precocious puberty, little girls developing breasts at 5 or 6 years old, little boys developing armpit hair. And that is something that people don't want to talk about," Holt says. "They will talk about their thyroid glands, their cancers, but they will not talk about early puberty. We are on a true toxic tilt."
For the first time since she became involved in the sludge issue, Holt is guardedly hopeful that her concerns will finally be addressed, and that the sulphurous alliance between the Environmental Protection Agency (EPA), municipal sewer authorities and Synagro Technologies (the nation's largest sludge disposal firm, which was recently bought by the Carlyle Group) -- will be exposed for the blight it is.
In April, Sen. Barbara Boxer (D-Calif.), chair of the Environment and Public Works Committee, announced that her committee will hold hearings on the issue this summer. The catalyst is a confluence of recent news reports about sludge-related scandals. ...
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Who'd have thought that laying a bunch of toxic shit down would have consequences? Note: the Carlyle Group is Poppy Bush's investment tribe.
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Thu, May 22, 2008 from Associated Press:
USDA axes the sole national survey to chart pesticide use
"Consumers lost a key source of information about what's sprayed on their food on Wednesday, the last day the government published a long-standing national survey that tracks the amount of pesticides used on everything from corn to apples. Despite opposition from prominent scientists, the nation's largest farming organizations and environmental groups, the U.S. Department of Agriculture confirmed Wednesday it plans to do away the program." ...
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What we don't know surely can't hurt us!
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Thu, May 22, 2008 from Chemical and Engineering News:
Groups Petition EPA To Ban Endosulfan
Widely used pesticide is an endocrine disrupter and neurotoxicant... EPA estimates that farmers use approximately 1.4 million lb of endosulfan each year in the U.S. The pesticide is used extensively on cotton, tomatoes, potatoes, and apples, but residues of it have been detected in numerous other foods, including cucumbers, green peppers, raisins, cantaloupe, spinach, and even butter, according to the petition. Endosulfan has been detected in humans and the environment, including remote areas such as the Arctic, where it is not used. ...
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Let's see, which would I prefer: blemishes on my tomatoes, or blemishes in my brain function?
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Sat, May 17, 2008 from China Post (Taiwan):
Hazardous chemical discovered in detergents
Three local brands of common household detergents contain hazardous endocrine disrupters potentially harmful to health and environment, a consumers' protection group claimed yesterday.... Results of a survey of 20 brand name household laundry detergents found in the market, conducted by the Consumers' Foundation showed that 15 percent contain nonylphenol ethoxylates (NPEO).... NPEO compounds break down into a group of toxic and persistent byproducts, such as nonylphenol (NP). ...
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Maybe if they had more euphonious acronyms, we'd be more afraid of them.
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Fri, May 16, 2008 from ASU, via EurekAlert:
New study links fate of personal care products to environmental pollution and human health concerns
Two closely related antimicrobials, triclosan and triclocarban, are at the center of the debacle. Whereas triclosan (TCS) has long captured the attention of toxicologists due to its structural resemblance to dioxin (the Times Beach and Love Canal poison), triclocarban (TCC) has ski-rocketed in 2004 from an unknown and presumably harmless consumer product additive to one of today’s top ten pharmaceuticals and personal care products most frequently found in the environment and in U.S. drinking water resources.... [the] antimicrobial ingredients used a half a century ago, by our parents and grandparents, are still present today at parts-per-million concentrations in estuarine sediments.... "This extreme environmental persistence by itself is a concern, and it is only amplified by recent studies that show both triclosan and triclocarban to function as endocrine disruptors in mammalian cell cultures and in animal models." ...
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Some days I just want to wash my hands of the whole human race.
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Fri, May 9, 2008 from UCSF, via ScienceDaily:
Common Herbicide Disrupts Human Hormone Activity In Cell Studies
A common weedkiller in the U.S., already suspected of causing sexual abnormalities in frogs and fish, has now been found to alter hormonal signaling in human cells, scientists from the University of California San Francisco (UCSF) report. The herbicide atrazine is the second most widely used weedkiller in the U.S., applied to corn and sorghum fields throughout the Midwest and also spread on suburban lawns and gardens. ...
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What's a little change in my hormonal signaling? Look at my lawn!
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Tue, Apr 29, 2008 from Uro Today:
Human Exposure to Endocrine Disrupters and Semen Quality
We propose that environmental factors, including exposure to endocrine disrupting chemicals, may be represented in this idiopathic category of diagnosis. Endocrine disrupters are proposed to modulate or dysregulate the endogenous endocrine system via competitive or non-competitive binding at steroid hormone receptors, changes to synthesis, metabolism or transport of hormones or by changes in gene expression. Significant laboratory evidence supports endocrine disruption as a mechanism of action for several types of chemicals including polychlorinated biphenyls (PCBs), bisphenol A (BPA), 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), p,p’-DDE (p,p'-dichlorodiphenyl dichloroethylene)- the major breakdown product of DDT and mixtures such as pesticides. Though there is a relative paucity of population-based studies examining the effects of exposure to endocrine disrupters on human semen quality, it may be cautiously interpreted that endocrine disruption due to organochlorine exposures may be manifested as reduced sperm motility and morphology. ...
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If exposure caused impotence, then we'd really see political action.
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Mon, Apr 21, 2008 from Globe and Mail (Canada):
Canada first to label bisphenol A as officially dangerous
Health Canada is calling bisphenol A a dangerous substance, making it the first regulatory body in the world to reach such a determination and taking the initial step toward measures to control exposures to it.... U.S. tests have found that more than 90 per cent of the population carries in their bodies trace residues of the chemical, whose molecular shape allows it to mimic the female hormone estrogen.... Until now, regulators in other countries have accepted the industry's assertion that BPA is harmless at the tiny, parts-per-billion type exposures from canned food and plastic beverage containers. A part per billion is roughly equal to one blade of grass on a football field, although natural hormones such as estrogen are active at far lower concentrations, around a part per trillion. ...
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That's only a thousand blades of grass -- not even a "first and goal."
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Sun, Apr 6, 2008 from Yale University:
Study shows why synthetic estrogens wreak havoc on reproductive system
Researchers at Yale School of Medicine now have a clearer understanding of why synthetic estrogens such as those found in many widely-used plastics have a detrimental effect on a developing fetus, cause fertility problems, as well as vaginal and breast cancers.... exposure to DES and similar substances results in lasting genetic memory, known as "imprinting." ...
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Having genes "imprinted" with plastic sounds like they're being laminated.
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Mon, Mar 10, 2008 from Associated Press:
AP probe finds drugs in drinking water
"A vast array of pharmaceuticals -- including antibiotics, anti-convulsants, mood stabilizers and sex hormones -- have been found in the drinking water supplies of at least 41 million Americans, an Associated Press investigation shows. To be sure, the concentrations of these pharmaceuticals are tiny, measured in quantities of parts per billion or trillion, far below the levels of a medical dose. Also, utilities insist their water is safe. But the presence of so many prescription drugs -- and over-the-counter medicines like acetaminophen and ibuprofen -- in so much of our drinking water is heightening worries among scientists of long-term consequences to human health." ...
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Maybe this is why -- in all those drug studies -- placebos are so effective. If we're drinking water, we're already on drugs.
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Tue, Mar 4, 2008 from Chesapeake Bay Journal:
Study links agriculture to increase of intersex fish in Potomac basin
"Scientists have been perplexed for years as to why large numbers of male smallmouth bass in the Potomac River basin contain immature egg cells, but they offer some clues in a recent journal article. Results published in the Journal of Aquatic Animal Health suggest that the high rate of "intersex" characteristics in smallmouth bass from the Shenandoah River and the South Branch of the Potomac appears to be linked to areas with large human populations or intense agricultural operations. ...
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Apparently, whether you're an urban smallmouth bass or a rural smallmouth bass, you're screwed.
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Thu, Feb 28, 2008 from United Press International:
Polluted prey affects wild birds
"Welsh scientists have found brain and behavioral changes in wild birds after the birds forage on invertebrates contaminated with environmental pollutants. Katherine Buchanan and colleagues at Cardiff University studied male European starlings (Sturnus vulgaris) foraging at a sewage treatment works and analyzed the earthworms that constitute their prey. The researchers found birds exposed to environmentally relevant levels of synthetic and natural estrogen developed longer and more complex songs compared with males in a control group...The researchers also found female starlings prefer the song of males exposed to the mixture of endocrine disrupting chemicals, suggesting the potential for population level effects on reproductive success." ...
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Clearly, the female starlings just feel sorry for the males. Not the first time pity has gotten a fella laid, eh?
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Tue, Feb 26, 2008 from Science Daily (US):
Male Fertility May Be Harmed By Mix of Endocrine Disrupters
"...pregnant rats were exposed to a cocktail consisting of three chemicals that all inhibit the effect of the male sex hormone testosterone: The drug flutamide and the pesticides vinclozolin and procymidone. The three chemicals were administered in doses which are harmless individually. Concurrent exposure to the three substances did, however, show significant cocktail effects. The male rats did, among other things, develop female characteristics in the form of retained nipples and severely malformed external sexual organs. Sixty per cent of the male rats were, for example, born with hypospadias [an open urethra]." ...
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We produce a lot of endocrine disrupters. Say, maybe we can genetically engineer ourselves to be immune to them!
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Wed, Feb 20, 2008 from Terra Daily:
Fish Devastated By Sex-Changing Chemicals In Municipal Wastewater
"While most people understand the dangers of flushing toxic chemicals into the ecosystem through municipal sewer systems, one potentially devastating threat to wild fish populations comes from an unlikely source: estrogen. After an exhaustive seven-year research effort, Canadian biologists found that miniscule amounts of estrogen present in municipal wastewater discharges can decimate wild fish populations living downstream ... Male fish exposed to estrogen become feminized, producing egg protein normally synthesized by females." ...
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Bad for the fish's health and bad for their self-esteem as the males are considered girly-fish.
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Thu, Feb 7, 2008 from Thaindian News:
Environmental toxins may be linked to early onset of puberty in girls
"A new study conducted by researchers at the University of Pisa in Italy has suggested a link between environmental toxins and early onset of puberty in girls. The paper suggests that certain environmental toxins, such as the mycoestrogen zearalenone (ZEA) produced by the Fusarium fungus species, might disrupt the normal growth and hormonal development of girls." ...
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Hmm... I wonder what the other toxins that we put into the environment... naaaa.
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