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

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

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

The Department of Natural Resources and Environmental Control warns of air that is unsafe for sensitive groups on July 5.

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 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 ...

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.

The air quality is reaching dangerous levels in parts of the Upper Midwest and north central U.S., where copious amounts of smoke from wildfires in Canada are wafting south across the ...

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 ...

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.

MIchigan's air quality will be unhealthy for some groups Saturday. Check the air quality index map to see if it's good or bad ...

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.