Deaths-head Jester

[The Project]
[The ApocaDocs]
[Equal Share]
The Six Scenarios:
[Species Collapse]
[Infectious Disease]
[Climate Chaos]
[Resource Depletion]
[Biology Breach]


It's weekly, funny, and free!


More than 5,600 stories!

A great gift
for crisis deniers!

The ApocaDocs have a Book!
Humoring the Horror of the
Converging Emergencies
94 color pages
$24.99 now $15!
Or read FREE online!


Ping this story
in social media:

Posted Thu Aug 19 2010: from Scientific American:
Silver Beware: Antimicrobial Nanoparticles in Soil May Harm Plant Life
A new study finds that the popular microbicidal silver nanomaterial negatively impacts the growth of plants as well as kills the soil microbes that sustain them.... When it is nanosize--between one and 100 nanometers, which is smaller than many viruses (a nanometer is one billionth of a meter)--silver is even more effective at killing microbes. This antimicrobial potency has prompted manufacturers to include silver nanoparticles in a wide variety of consumer products, such as odor-resistant clothing, hand sanitizers, water treatment systems and even microbe-proof teddy bears.... In order to examine silver nanoparticles' ecosystemic impact the researchers prepared series of outdoor "mesocosms"--intermediate-sized "fields" of plants growing in rubber tubs. They applied 0.2 kilograms of biosolid to each tub, amending the fertilizer with 11 milligrams of silver nanoparticles per tub. This concentration is within the range that the U.S. Environmental Protection Agency reported finding in a recent survey of biosolids from water treatment plants.... The nanoparticles reduced the growth of one of the tested plant species by 22 percent as compared with silver-free biosolid treatment. Similarly, microbial biomass was reduced by 20 percent. Colman presented the findings August 4 at the 95th annual meeting of the Ecological Society of America.
[Read more stories about: nanotechnology, unintended consequences, toxic water]
This item will appear in our PANIQuiz!

No reader quips yet -- be the first!

Got a PaniQuip?

Your Quip (limit 140 characters, no links, just wit):

First name:

The text shown in the Web image to the right:

We reserve the right to reuse, remove, or refuse any entry.

'Doc Jim says:
Given the uncertainty, I suggest an uncontrolled experiment on the real environment.

More stories:
  • Scientists brew up powerful whisky biofuel
  • Rising temperatures reducing ability of plants to absorb carbon, study warns
  • (Silver Beware: Antimicrobial Nanoparticles in Soil May Harm Plant Life)
  • On the frontline of climate change
  • Pakistan -- a Sad New Benchmark in Climate-Related Disasters

  • Want to explore more?
    Try the PaniCloud!
    Copyright 2010 The