Millions from the Great Lakes to the Northeast are under air quality alerts – with the toxic smoke prompting a ground delay ...

Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast ...

With hundreds of wildfires burning across Canada, smoke has drifted into the northern United States, lowering air quality ...

Degraded and/or unsafe air quality levels will continue across parts of Canada Monday as wildfire smoke lingers. However, the ...

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

Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast into Tuesday.

From coast to coast, thousands of Canadians have had to flee their homes because of wildfires, and many more are experiencing ...

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

Right now, Canada has more than 700 wildfires actively burning. Some have been ongoing since May. Canadian officials said as ...

Wildfires continue to burn across a massive area in Canada, particularly in the provinces of Saskatchewan and Manitoba.

More than 739 fires are burning in Canada, and smoke crossing the border has triggered air quality alerts in several U.S.

The smoke floating over the border shared between America and Canada is now impacting air quality in states as far south as Texas, AirNow's data shows. The EPA has declared the air quality in states ...