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

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

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

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

An air quality advisory has been issued in the Bay Area for Tuesday due to wildfire smoke drifting in from the Gifford Fire ...

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 ...

Air quality improving, comfortable humidityLONG TERM: Weekend storms and humidity returnsWAUSAU, Wis. (WSAW) - While not everyone will be impacted by air quality on Wednesday, those who have been ...

Researchers at The University of Alabama in Huntsville (UAH) have published a paper in Communications Earth & Environment ...

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