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

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

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

A thin veil of smoke from wildfires burning in Canada is worsening air quality and putting a lid on temperatures in the D.C.

Air quality has taken a serious hit across the United States as a twofold blow of wildfires in the West and in Canada have ...

An air quality alert remains in effect today for parts of the Hudson Valley due to smoke and haze from the Canadian wildfires ...

Wildfires in Canada are sending heavy smoke across the northern U.S., and New Jersey is experiencing some unhealthy air ...

Massachusetts can expect hazy skies on Wednesday as smoke from Canadian wildfires continues to drift down the East Coast, ...

Residents of central Pennsylvania should prepare for hazy skies and reduced air quality today as wildfire smoke from Canada ...

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

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.

Freeway corridor near Santa Clarita, Western San Gabriel Mountains/Highway 14 Corridor and Eastern San Gabriel Mountains are under an air quality alert which was reported by the National Weather ...