28 Apr '15, 5pm

25% of cars produce 90% of the pollution?

25% of cars produce 90% of the pollution?

U Toronto studies find traffic emissions spread farther than thought; 25% of cars causing 90% of pollution 28 April 2015 A trio of recently published studies from a team of University of Toronto engineers has found that air pollution could be spreading up to three times farther than thought, contributing to varying levels of air quality across cities. Past research on tailpipe criteria pollutants has shown poor air quality anywhere between 100 to 250 meters of major roadways. But in an open access paper published in the recent edition of the journal Atmospheric Pollution Research , U of T chemical engineer Greg Evans and his partners at Environment Canada have found that concentrations of pollutants from traffic are still double at a distance of 280 meters downwind from highway 400 north of Toronto. One in three Canadians, and half of all Torontonians, lives within 250 met...

Full article: http://www.greencarcongress.com/2015/04/20150428-evans.html

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