Analysis states areas in Montreal and Toronto located near highways, airports and rail yards have higher concentrations of UFPs, meaning people in those areas are at higher risk
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.
Researchers tracked air pollution levels between 2001 and 2016 in Toronto and Montreal and used information including mortality data and other records to follow about 1.5 million people over time and calculate the connection between the exposure to UFPs and risk of death. The tiny size of the particles allows them to penetrate deep into the human body and enter the bloodstream, contributing to heart and lung diseases, as well as some forms of cancer, said Weichenthal, who is an assistant professor in the department of epidemiology, biostatistics, and occupational health at McGill.
The study’s authors say Ottawa and the provinces need to set concentration limits for UFPs the way they have done to regulate larger particles like fine particulate matter, such as soot from wood-burning.
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