On Friday at 9:02 a.m. an air quality alert was reported by the Nation Service in effect until 11 p.m. for Passaic, Hudson, ...

Allegheny County is increasing air quality monitoring after an explosion at a U.S. Steel plant south of Pittsburgh killed two ...

“Today is Liberation Day in the state of California,” Gavin Newsom proclaimed today in downtown L.A. of the legislative ...

High school coaches and administrators across Minnesota have been asked to be aware of air-quality levels as athletes return ...

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 ...

A 54-day monitoring by Indonesia’s largest environmental group around a waste-to-energy plant in East Java revealed frequent ...

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

Wildfires are burning across the Western United States and Canada, affecting large parts of the country as smoke drifts. With ...

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

While the smoke is worst along the Western Slope where the fires are burning, levels are also fluctuating on the Front Range.