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

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.

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

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

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

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

A haze of wildfire smoke engulfed Toronto on Monday morning, pushing the city's air quality to some of the worst on the globe ...

Ontario's poor air quality and hazy skies will persist for the next couple of days for many areas, with widespread alerts ...

In Canada, the Air Quality Health Index (AQHI) is a scale developed to help people understand what the current air quality ...

Drone video captured wildfire smoke blanketing the skyline in Toronto, Canada on Monday (July 14).

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