Air pollution from Canada’s tar sands is much worse than we thought

Finally, a headline calling the tar sands what they are.

This is the best summary I could come up with:

Canada’s tar sands have gained infamy for being one of the world’s most polluting sources of oil, thanks to the large amounts of energy and water use required for their extraction.

For certain classes of heavy organic compounds, which are more likely to form particulates downwind, the concentrations were higher than what’s generally found in large metropolises like Los Angeles.

“The absolute magnitude of those emissions were a lot higher than what we expected,” said John Liggio, a research scientist at Environment and Climate Change Canada, the nation’s environmental regulatory agency, and a co-author on the study.

Seth Shonkoff, executive director of PSE Healthy Energy, an independent scientific research institute in California, who was not involved in the study, said the findings suggest air pollution from tar sands operations is more damaging to people’s health than previously known.

Over the last decade, a growing body of research has examined emissions of different air pollutants from oil and gas operations across the United States and Canada, and much of that has shown that industry estimates tend to undercount what’s being released, he said.

Mark Cameron, vice president of external relations at the Pathways Alliance, an oil sands industry group, said in an email that the findings warrant further review and that “the oil sands industry measures emissions using standards set by Environment and Climate Change Canada and we look forward to working together to explore opportunities to further enhance our measurement practices.”

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