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

As Canadian wildfires spread smoke across the U.S. the air pollution is dangerous to health. But there are ways to protect yourself. Here's what to know.

Millions of Americans are being told that being outside for long periods could put them at risk of coughing, eye irritation ...

Smoke and haze continues to clear out. Gradual warming eventually pushes high temperatures near 90 degrees. Minor precipitation forecast for the week.

Over the weekend, the New York State Department of Environmental Conservation (DEC) issued an air quality health advisory for ...

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