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

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 ...

Proposed jobs and grants cuts by the Trump administration could have detrimental impacts in air quality monitoring at the ...

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 ...

On Thursday afternoon, a fast-moving wildfire erupted near the 57 Freeway and Timber Canyon in Brea. Now named the Tonner ...

A forecast map from AccuWeather shows which states are likely to see wildfire smoke impacts this summer. AccuWeather In the east, states including Tennessee, North Carolina, West Virginia, New ...

An air quality map shows conditions improving across the United States on Friday as smoke from the Canadian wildfires subsides after prompting air quality alerts and advisories in several states ...

Smoke from the Canadian wildfires will sweep across Pennsylvania on Tuesday. "The wildfire smoke is coming back, and you can see this plume coming across the Susquehanna Valley this evening," WGAL ...