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

The mid-Hudson Valley is expected to have an air quality index of 101 Aug. 4, which is unhealthy for at-risk groups.

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

The smoke from forest fires is still expected to cloud Toronto’s skies on Monday, according to Environment Canada’s special ...

Air quality alerts were in effect in Iowa, Minnesota, Wisconsin and Michigan, as well as eastern Nebraska and parts of ...

On Aug. 4, multiple organizations including the National Weather Service and airnow.gov have placed Erie in the level "orange ...

Close the windows and turn on the air conditioner, if you have one, setting it to circulate the indoor air. Use blankets to ...

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