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

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, ...

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

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

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.

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

According to the Arizona Department of Environmental Quality, as of Saturday, the state has gone 58 days without exceeding ...

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

An August heat wave is moving into Kentucky and southern Indiana beginning this weekend. Here's how high temperatures will ...

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