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

An air quality alert is in effect for much of Massachusetts on Monday due to Canadian wildfire smoke. People with respiratory issues will want to limit their time outdoors for the next few days. The ...

Millions of people were told to monitor themselves for the symptoms at least through Monday night, but possibly longer.

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

The smoky air poses potential health risks for people including children, older adults and those with heart or lung disease.

An Air Quality Action Day (AQAD) has been issued for Tuesday in several northern Indiana cities as Canadian wildfire smoke ...

A video shared from Cambridge, Massachusetts, shows hazy skies due to Canadian wildfire smoke drifting into the U.S.

Sunny weather in Michigan starts the week off. Rain could move in later this week, with smoke slowly exiting the state.

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

New York and other neighboring states are under an air-quality advisory due to influx of smoke from ongoing wildfires in ...

Close Your Windows, the Wildfire Smoke Is Back New York and other neighboring states are under an air-quality advisory due to ...

The Wisconsin Department of Natural Resources re-extended its air quality alert statewide as wildfire smoke lingers.