The majority of Canadians live in parts of the country where air pollution exceeds new guidelines set by the World Health Organization, and this could damage their health, researchers say.
The WHO’s new guidelines recommend an annual average concentration of PM2.5 of five micrograms per cubic meter of air. PM2.5 refers to airborne particles so tiny that they can penetrate the lungs when you breathe and enter the bloodstream.
While most of Canada was well under the old WHO guideline on fine particulate matter, much of urban Canada exceeds this new benchmark, as do parts of Western Canada with regular exposure to wildfire smoke, CANUE’s research shows.
Jamie Maraucher reports.
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