Two workers were killed and nearly a dozen were injured while they were preparing for a maintenance project at the Clairton facility.

Timothy Quinn, 39, of East Huntingdon Township, also died in the incident. Ten other people were injured. Three of them are ...

The Pennsylvania county where an explosion at a U.S. Steel plant south of Pittsburgh killed two people and injured more than 10 others ...

Data from the EPA and OSHA provide a glimpse into some of the previous violations and injury reports at the Clairton Coke ...

U.S. Steel Clairton Coke Works' current limited coke-making capacity due to Monday's explosion is prompting concerns.

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

Organizations like the Breathe Project and the Group Against Smog and Pollution, in conjunction with the Allegheny County Health Department, have been closely monitoring the air quality in Clairton ...

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

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