Official air-quality results for Kyrene de la Sierra Elementary School show elevated levels of potentially harmful chemicals.

An air quality advisory has been issued for Mason County as the Bear Gulch Fire continues to burn north of Lake Cushman.

Because of Canadian wildfires, Minnesota high schools have had to watch how they practice to begin the season in a number of ...

An air quality alert was reported by the National Weather Service on Tuesday at 12:17 p.m. in effect until 8 p.m. for ...

Ozone pollution in Portland, Gresham and other cities could reach unhealthy levels for sensitive groups Tuesday afternoon.

While not everyone will be impacted by air quality on Wednesday, those who have been sensitive to poor air quality this ...

In the Bay Area, you may spot the cars in West Berkeley, SoMa or on Treasure Island. In LA, one may drive by in Inglewood or ...

Air quality alerts have been issued across parts of Texas, Minnesota, Connecticut, Colorado and Washington for Wednesday.

SAGINAW, Mich. (WNEM) - Quieter weather is now settling in for the rest of the workweek after Tuesday’s heavy rain and storms ...

OLYMPIC NATIONAL FOREST, Wash. — The Bear Gulch Fire within the Olympic National Forest and National Park has now prompted an ...

Kyrene de la Sierra Elementary School closed its campus and moved to remote learning because of the high particulate levels ...

For the first time, there's a map of the nation's cattle and hog feeding operations, and it shows Tulare County has more than ...