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

Smoke from the Gifford Fire was hovering over parts of the county, resulting in sooty air quality and possible ash falling ...

The Colorado Department of Public Health and Environment has issued an air quality health advisory for parts of Colorado due ...

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

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

An air quality alert is in effect for all of Massachusetts as smoke from Canadian wildfires descends into the Boston area.

Each New England state has seen more days over the last five years when fine particulate matter or ozone exceeds air quality ...

The Santa Clarita Valley and Inland Empire will experience the worst air quality on Tuesday, according to South Coast AQMD.

An air quality alert issued today from the Clark County Division of Air Quality warns that wildfire smoke from Southern ...

Hazy skies descend over the New York City area again on Tuesday, re-upping some air quality alerts related to Canadian ...

“Smoke plumes can travel quite a bit. They can travel hundreds and thousands of miles, so our air quality right now is being ...

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 ...