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

Detroit currently is ranked third worst worldwide for major city air quality today, Aug. 4, because of smoke from Canadian ...

Tuesday night is when the high pressure system shifts to the east, the NWS says. This should allow south winds to return, ...

Smoke from Canadian wildfires continues to affect air quality across the Midwest, though Monday’s conditions were an ...

New York City air quality is dropping as Canadian forest-fire smoke swirls down the Hudson River, shrouding much of the ...

Canadian wildfire smoke has affected Wisconsin all week, prompting multiple air quality alert extensions from the DNR.

Wildfire smoke from California has infiltrated the Las Vegas Valley, creating unhealthy air quality conditions that could ...

Forecasters say weak winds have left Canadian wildfire smoke to linger over the U.S. Stronger winds are expected to bring ...

Millions of people across the Upper Midwest and the Northeast are under air quality alerts Monday, as smoke from wildfires in ...

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

Wildfires burning in Canada were causing unhealthy air quality across parts of North America on Monday. Canadian wildfires ...