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

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

The Allegheny County Health Department announced that Mobile Air Units will be deployed in the Mon Valley Thursday and Friday ...

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

Rescuers were continuing to search for one missing worker at the Clairton Coke Works more than five hours after mid-morning ...

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

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

Pennsylvania Gov. Josh Shapiro is expected to speak with officials and provide an update after the U.S. Steel Clairton Coke ...

Pittsburgh Action News 4 has confirmed at least two people have died and nine others have been injured after multiple ...

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

Here are the latest details on the fatal explosion at U.S. Steel’s Clairton Coke Works. Gov. Shapiro headed to town Gov. Josh ...

Explosions late Monday morning at Clairton Coke Works in Allegheny County killed one person and injured 10 others, as ...