Winds could blow smoke from the Bear Gulch fire burning on the Olympic Peninsula, bringing the potential for unhealthy air ...

Any bit of sunshine in the forecast today will be met with not just extra clouds but also some haze and upper level smoke.

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

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.

The Maine Department of Environmental Protection, which issued the alert, said ozone values have been high for several days ...

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

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

If you live in the Houston area, you might have noticed that air quality alerts are issued throughout the year by the U.S.

The Maine Department of Environmental Protection has issued an Air Quality Alert for communities along the Coast, Interior, and High Elevation areas on Wednesday.