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 ...

A gray haze from wildfire smoke could be seen in Cincinnati, and the entire state of Minnesota is under an air quality alert.

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

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

Smoke from wildfires still raging in Canada is degrading air quality across the northern U.S., turning skies a murky orange ...

More than 25,000 residents in three provinces have been evacuated as wildfires remained active and diminished air quality in parts of Canada and the U.S.

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 ...

Maps show where new plumes of smoke will cause hazy skies through the end of the week. Low-level smoke is forecast to spread eastward Wednesday across the Appalachians and into the Mid-Atlantic and ...

Smoke from Canadian wildfires is headed toward Massachusetts, and prompting concerns about air quality in Boston. There are numerous wildfires raging in northwestern Canada and also over parts of ...