Less traffic in downtown Toronto improves air quality: Evans

head shot of Greg Evans

Professor Greg Evans

UTTRI associated faculty Professor Greg Evans‘ air quality research is featured in “COVID-19 restrictions cut downtown Toronto pollution levels by almost half, researchers find,” CBC News, April 9, 2020.

Evans is Director of SOCAAR, the  Southern Ontario Centre for Atmospheric Aerosol Research (SOCAAR) at the University of Toronto, an interdisciplinary centre for the study of air quality with a focus on how pollutants impact human health and the environment.

The SOCAAR team analyzed the concentration of dozens of pollutants from air pulled directly from a duct off College Street in downtown Toronto for 24 days before March 13 and 24 days after.

The preliminary results provided to CBC News showed levels of nitrogen oxides and ultrafine particles, both indicative of vehicle pollution, have sharply decreased, a finding consistent with the reduction in traffic in the area.

“Both of them have dropped by about half,” said Evans.

Read the full article on CBC News‘ website.

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