Postmedia News

Wed, 2012-11-14 21:04Carol Linnitt
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Toxic Tar Sands: Scientists Document Spread of Pollution, Water Contamination, Effects on Fish

Today federal scientists from Environment Canada presented research at an international toxicology conference in the U.S. that indicates contaminants from the Alberta tar sands are polluting the landscape on a scale much larger than previously thought.

A team lead by federal scientist Jane Kirk discovered contaminants in lakes as far as 100 kilometers away from tar sands operations. The federal research confirms and expands upon the hotly contested findings of aquatic scientist David Schindler who, in 2010, found pollution from the tar sands accumulating on the landscape up to 50 kilometers away.

“That means the footprint is four times bigger than we found,” Schindler told Postmedia News.

Senior scientist Derek Muir, who presented some of the findings at Wednesday's conference, said the contaminated region is “potentially larger than we might have anticipated.” The 'legacy' of chemicals in lake sediment gives evidence that tar sands pollution has been traveling long distances for decades. Samples show the build up of polycyclic aromatic hydrocarbons, or PAHs, known to cause cancer in humans and to be toxic to aquatic animals, in 6 remote and undisturbed lakes up to 100 kilometers away from tar sands operations.

The pollutants are “petrogenic” in nature, meaning they are petroleum derived, and have steadily and dramatically increased since the 1970s, showing the contaminant levels “seem to parallel the development of the oilsands industry,” Muir said.

Mon, 2011-05-30 10:12Emma Pullman
Emma Pullman's picture

Canada Hides 20 Percent Tar Sands Annual Pollution Increase from UN

The Canadian federal government deliberately excluded data documenting a 20 percent increase in annual pollution from Alberta's tar sands industry in 2009. That detail was missing from a recent 567-page report on climate change that Canada was required to submit to the United Nations.

According to Postmedia News, Canada left the most recent numbers out of the report, a national inventory on Canada’s greenhouse gas pollution. The numbers are used to stabilize greenhouse gas emissions and prevent catastropic climate change. It is certainly not the first time that Canada has dragged its feet on its international climate obligations, but omission of vital information is a new low, even for them.

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