Parts of the Greater Toronto Area remained under a special air quality statement and a heat warning on Monday night.

Smoke from wildfires in Manitoba, a Western province facing its worst fire season in 30 years, has created hazardous air ...

Wildfire smoke degrades air quality in swaths of Ontario, with Toronto ranking among the worst in the world on Monday.

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Tuesday’s air quality warning has dropped to a 5, considered a moderate risk, down from Monday’s peak of 10+ on the Air ...

Environment Canada is warning of poor air quality and extreme heat in Toronto on Monday as southern Ontario braces for a week ...

Environment Canada has placed Toronto, and the surrounding GTA, under both a heat wave and a poor air quality warning due to ...

Much of Central Canada, Manitoba and Saskatchewan were placed under special air quality statements or warnings on Monday due ...

There’s a layer of haze in the air, as smoke from burning wildfires has blown into southern Ontario. And according to the ...

The city had among the worst air quality in the world for a time on Wednesday and officials warned that poor air quality in the area would likely last into Friday. By Dan Bilefsky Toronto has ...

According to IQAir's global air quality ranking, Toronto is currently the second most polluted city in the entire world. It puts the 6ix ahead of major cities known for chronic pollution, such as ...

At one point on Wednesday afternoon, Toronto's air quality was ranked worst among major cities of the world due to the forest fire smoke, according to a ranking provided by air quality tracker IQAir.