The health department began deploying mobile air units Thursday provided by Pennsylvania’s Department of Environmental ...

In the last five years, U.S. Steel has paid more than $10 million in penalties for violations of the Clean Air Act at ...

Regulators are temporarily stepping up pollution monitoring in the Mon Valley after a deadly explosion at U.S. Steel’s ...

The Allegheny County Health Department issued an update on air quality near the U.S. Steel Clairton Coke Works following ...

A day after a deadly explosion rocked the Clairton Coke Works facility, Allegheny County officials confirmed that two men ...

A second Westmoreland County man was identified as the other victim who was killed Monday in an explosion at U.S. Steel’s ...

The exact locations and times for the units’ deployment will be based on real-time forecasts developed by ACHD and PADEP ...

One person has died and dozens are reportedly injured or trapped under rubble following an explosion at a U.S. Steel plant ...

U.S. Steel says it believes a gas valve failure led to the explosion Monday morning at its Clairton Coke Works, in which two ...

Two people were killed and 10 others were injured in an explosion at the U.S. Steel Clairton Coke Works plant on Monday.

A massive explosion at the Clairton Coke Works steel plant in Pennsylvania on Monday morning left multiple people injured, ...

An explosion at US Steel's Clairton Coke Works in Allegheny County, PA, left several injured. The plant sits along the ...