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Wildfires take over from industry as major source of cancer-causing air toxins: study
by Bob Weber, The Canadian Press
Posted Dec 14, 2020 1:53 pm EDT
Last Updated Dec 14, 2020 at 1:58 pm EDT
The Shovel Lake wildfire burns near the Nadleh Whut en First Nation in Fort Fraser, B.C., on Thursday August 23, 2018. THE CANADIAN PRESS/Darryl Dyck
Wildfires have taken over from industry as a major source of a group of cancer-causing chemical toxins in the air, Environment Canada says.
The first national assessment of polycyclic aromatic compounds in more than 25 years has found that air has improved around aluminum and steel plants. But wildfires and vehicles have stepped in to keep average concentrations at about the same level that they were in the 1990s, says federal researcher Elisabeth Galarneau.