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

Wildfire smoke has been blowing into the city since Sunday though residents should should expect some relief by early morning ...

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 ...

World Cup being hosted by Canada, Mexico and the United States is less than a year away and FIFA’s protocols for matches ...

With various air quality indexes available, and as wildfire smoke becomes an increasing health risk, here’s what often goes ...

Multiple U.S. states and Canadian provinces are experiencing poor air quality from wildfire smoke. Here's where.

Welcome to our live blog tracking the latest news and developments from Canada. Stay updated with real-time insights into the ...