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

Smoke from wildfires in Canada continue to impact air quality in the northern United States, even in the New York City metro ...

Smoke from hundreds of wildfires in Canada is lingering over the northern U.S., spreading across to roughly a dozen states from Wisconsin to Maine.

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.

As smoke begins to dissipate, Michigan's statewide advisories have ended, though some remain for Upper Peninsula and northern ...

People who breathe air polluted with large amounts of wildfire smoke visit hospital emergency rooms more often for respiratory symptoms, according to a Canadian emergency room physician and chair of ...

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.

Canadian wildfire smoke continues to cause hazy skies and air quality alerts in New Hampshire. The air quality alert, extended through Tuesday night, particularly affects sensitive individuals. Air ...