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

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

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

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

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

Environment Canada warned on Thursday that poor air quality in the Toronto area would likely last into Friday. “Wildfire smoke can be harmful to everyone’s health even at low concentrations ...

Environment Canada urges residents to limit their time outdoors. But even when inside, most buildings can only reduce ...

Toronto and the GTA are under a heat wave and poor air quality warning issued by Environment Canada on July 14, 2025, due to ...

In Canada, the Air Quality Health Index (AQHI) is a scale developed to help people understand what the current air quality means for your health. It is an initiative among Environment Canada, Health ...

Wildfire smoke is also affecting central and northern Saskatchewan, with Environment Canada saying Buffalo Narrows, Sask., will see the air quality health index remain at the “very high risk” rating ...

Toronto had the second worst air quality in the world next to New York Friday morning, according to IQAir’s rankings. The city remains under a Environment Canada special air quality statement.