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

When combined with the Philly area’s warm, sunny weather, the incoming smoke stands to increase levels of ozone, the ...

An air quality alert is in effect for all of Massachusetts today due to smoke from Canadian wildfires, and it could be the ...

More than 200 fires are burning in Canada, according to Natural Resources Canada. Of those, 59 fires are out of control. The ...

Smoke from ongoing Canadian wildfires has led to some of the worst air quality in the world across parts of the U.S.

Smoke from Canadian wildfires will move into the region Monday, Aug. 4, causing unhealthy air for sensitive groups.

What would have been a partly sunny 85-degree day over Upstate New York turned into a yellowed, hazy overcast glow on Monday ...

If you have issues related to asthma or heart disease, it’s been one week since the haze set in, and it’s best to skip the stroll and stay cool within.

The National Weather Service reported an air quality alert at 1:20 p.m. EDT on Monday in effect until Wednesday at midnight ...

A 'code orange' exists when the air quality index is greater than 100. As of the early afternoon, much of the area remained in the elevated ''yellow" range, according to the U.S. Environmental ...

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 ...