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Rivers closest to Toronto have highest concentrations of PCBs, other chemicals: study http://apocadocs.com/s.pl?1273923073
A University of Toronto study of the concentrations of PCBs and other chemicals in the rivers running into Lake Ontario reveals significantly higher concentrations in areas closest to the centre of Toronto, an indication of the profound effects the city has on water quality.... The team looked specifically at concentrations of chemicals that have been strongly associated with human health problems: polychlorinated biphenyls (PCBs), a banned industrial chemical from the 1970s; polycyclic musks, a common fragrance compound used in a range of personal care products; polybrominated diphenyl ethers, a recently banned flame retardant; and polycyclic aromatic hydrocarbons, a toxic byproduct of fossil fuel combustion in the rivers. They also measured the concentration of these chemicals in air, soil and rain.
"In the Humber River watershed we saw an almost 100-fold increase in concentrations of polycyclic musks in the river water in the downtown area around Old Mill compared with parts of the river north of the city," said Matthew Robson, a research fellow in the Department of Geography and Program in Planning. "We saw similar increases in concentrations for all of the other chemicals in air, rain and soil...."
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[Read more stories about:
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'Doc Jim says:
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I'm sure Milwaukee is different. And Des Moines. Or LA. Or Houston. Or Nairobi! Those silly Canadians.
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