Unhealthy air has invaded Minnesota, Wisconsin and North Dakota early this week as a new round of wildfire smoke from Canada ...

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 study in Ontario found continued exposure to fine particulate matter is linked to higher levels of diffuse myocardial ...

According to Health Canada, an air purifier is one way to protect your indoor environment from wildfire smoke.

Smoke from northern Ontario forest fires will cause poor air quality and reduced visibility in Sarnia Monday, according to ...

Environment Canada has issued a special air quality statement as wildfire smoke hovered over the nation’s capital Monday ...

While most of the Northwest will see compromised air quality this week, national weather officials say areas west of Thunder Bay will likely have it worse.

Environment Canada says residents should consider limiting time outside and monitor for smoke exposure symptoms ...

As record wildfires erupt across Canada this year, with health-threatening smoke drifting into the U.S. and as far away as ...

The Sudbury area remains under a special air quality statement because of wildfire smoke from Forest fires over Northern Ontario and the Prairies.

The weather agency has issued a special air quality statement for much of Manitoba, noting that air quality and visibility due to wildfire smoke can fluctuate over short distances.