Ultrafine Particles Linked to 1,100 Deaths per Year in Montreal, Toronto: Study

Ultrafine Particles Linked to 1,100 Deaths per Year in Montreal, Toronto: Study
McGill University is seen Oct. 13, 2023, in Montreal. Researchers at McGill University have published a study showing that outdoor ultrafine particles are linked to the deaths of an estimated 1,100 people per year in Canada’s two biggest cities. The Canadian Press/Ryan Remiorz
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A study by researchers at McGill University has found that a microscopic air pollutant generated from vehicles and industry plays a role in the deaths of an estimated 1,100 people in Canada’s two biggest cities each year.

Their study, published recently in the American Journal of Respiratory and Critical Care Medicine, finds that long-term exposure to the ultrafine particles known as UFPs—which are typically less than 100 nanometres in size—increases the risk of mortality.