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.
“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.