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

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

Mon Valley and Pittsburgh residents concerned after US Steel coke works blast, while Allegheny County reports no air quality ...

The deadly blast at the U.S. Steel facility outside Pittsburgh was just the latest in a series of recent workplace accidents.

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

The Allegheny County Health Department announced that Mobile Air Units will be deployed in the Mon Valley as part of an ongoing investigation.

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