Smoke from the Canadian wildfires continues to bring potentially dangerous air quality to parts of the northern U.S., with ...

Continued drifting of wildfire smoke from Canada and Alaska has prompted Bay Area air regulators to extend an air quality ...

Canada's environment ministers have endorsed stronger air quality standards for fine particulate matter, while acknowledging ...

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

Smoke from Canadian wildfires carried another day of poor air quality south of the border to the Midwest, where conditions in parts of Minnesota, Wisconsin and Michigan were rated “very ...

Saturday will be a Code Orange Ozone Air Quality Action Day for Delaware. DNREC officials say a morning temperature inversion ...

Poor air quality worsened by Canadian wildfires is having an effect not just on our breathing but also our hearts.

Poor air quality due to wildfire smoke can negatively affect health. It's one of multiple climate-driven health risks ...

Wildfire smoke was helping raise ozone to hazardous levels. No alerts have been issued, but the air quality may approach “code orange” levels again late Thursday afternoon in parts of the region, as ...

Canadian Wildfire Smoke Spreads Impacting Air Quality for Millions Across Eastern and Midwest U.S. There were 203 active wildfires in Canada — with 102 of them deemed as “out of control ...

An air quality alert has been issued for most of Southeast Michigan on Independence Day. The alert is in effect for most ...

Wildfire smoke gives Chicago, Detroit some of world’s worst air quality. Smoke from Canadian wildfires continues to plague the Upper Midwest and Great Lakes region, with multiple states under ...