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.

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 ...

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

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

Poor air quality could keep tens of thousands of U.S. students out of school for weeks each year, according to new research from West Virginia University. The study, led by WVU doctoral student ...