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

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

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 ...

Smoke from wildfires in Canada has spread more than 5,000 miles, reaching parts of Russia and Europe during the past week. ... Maps show how far smoke from Canadian wildfires has spread.

Dense smoke from Canadian wildfires is blowing into U.S. Wildfire smoke from Manitoba, Canada, will blow across two dozen states through Saturday, reducing air quality and creating hazy skies.

Smoke from Canadian wildfires is impacting multiple U.S. states, even as far south as Florida. As over 203 active fires rage in Canada as of June 4, according to the Canadian Interagency Forest ...

Canadian wildfire smoke is making the air hazy in Rhode Island Wednesday. The air quality is expected to be in the moderate levels Wednesday. Smoke is expected to start clearing out Wednesday night.

More than 200 wildfires are raging across Central and Western Canada. That smoke is creating hazy skies in New England and prompting some air quality alerts.

Canadian wildfires are impacting air quality in the Midwest and Northern Plains. Smoke may cause reduced visibility and respiratory problems. Several states, including Indiana, Illinois, and ...

A Newsweek map shows where smoke from hundreds of wildfires burning across Canada which have prompted mass evacuations could impact states in ... citing the Canadian Interagency Forest Fire Center.

Smoke from Canadian wildfires is impacting air quality across the Midwest and Northern Plains. Wildfires are currently burning in Manitoba, Ontario, and Saskatchewan, Canada. The smoke may cause ...

Smoke from hundreds of wildfires in Canada has spread over 5,000 miles across the Atlantic over the last week — reaching as far as parts of Russia. Western Greenland and the Arctic Archipelago ...