Oil Sands Emissions – Even Greater than we Thought

From researchers at the University of Toronto, a paper published in the Proceedings of the National Academy of Sciences on February 3 finds that emissions of polycyclic aromatic hydrocarbons (PAH) from tar sands operations may be two or three times higher than previously reported in official estimates if fumes coming from tailings ponds are included in measurements. A summary of the study is at the CBC website at: http://www.cbc.ca/news/canada/edmonton/oilsands-air-pollutants-underestimated-researchers-find-1.2521134. The full article, “Evaluating Officially Reported Polycyclic Aromatic Hydrocarbon Emissions In The Athabasca Oil Sands Region With A Multimedia Fate Model” is available at: http://www.pnas.org/content/early/2014/01/29/1319780111.

A second article published in Environmental Science and Technology, the journal of the American Chemical Society, uses new technology to measure and differentiate between naturally occurring pollution from bitumen deposits and pollution from oil sands processing. The authors conclude that “oil sands process-affected water (OSPW)” from tailings ponds is reaching the Athabasca River system. The research was conducted under Environment Canada’s regular research program – and not surprisingly, Environment Canada told the Canadian Broadcasting Corporation that it was unable to provide an interview with the report’s main author, Richard Frank.

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“Profiling Oil Sands Mixtures from Industrial Developments and Natural Groundwaters for Source Identification” appears in Environmental Science and Technology Article ASAP (Jan. 21, 2014); an abstract is available at: http://pubs.acs.org/doi/abs/10.1021/es500131k (full text available for a $35 fee). The Edmonton Journal summary is at: http://www.edmontonjournal.com/health/Federal+study+confirms+oilsands+tailings+found/9530481/story.html.

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