As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts ...

Wildfire smoke brings hazy skies and poor air quality to Chicago today, with hot and humid weather building into the weekend.

Smoke from Canadian wildfires lingered over New Hampshire on Wednesday, though it is slowly dissipating day by day.

Smoke from ongoing wildfires across Canada continued to drift into parts of the United States on Wednesday, causing hazy ...

The air quality monitor on the Rio Blanco County building in Meeker peaked at 304 for fine particulate matter pollution at 5 ...

Concern for poor air quality in the greater Chicago area remains as the Illinois EPA extends its alert until Thursday night.

An air quality alert for wildfire smoke has been issued for portions of southeast Wyoming, including the cities of Cheyenne, Rawlins, Saratoga and Laramie, and will remain in ...

Smoke from wildfires in southwestern Manitoba, Canada, will impact the D.C. area Wednesday as it makes its way through the ...

An air quality alert from Canadian wildfire smoke will last through the day Wednesday, according to Vermont Emergency ...

Air quality alerts are in effect on Tuesday in 10 states as toxic smoke from hundreds of wildfires burning in Canada ...

Code Yellow Air Quality or moderate level for particle pollution are forecast for Thursday and Friday. This may cause health symptoms for groups of people in the unusually sensitive category.