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

Workers were heating coal and preparing for routine maintenance when an explosion rocked a U.S. Steel plant outside ...

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

Pennsylvania legislators have designated Aug. 17-23 as "Social Media Safety and Parental Awareness Week" to address online ...

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 ...

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

A 37-year-old Tamaqua man faces arson charges after police said he used a firework to set off a pipe bomb in the borough.

The office of the Allegheny County medical examiner identified a second man who was killed in an explosion at the Clairton ...

Gwaley called DeHosse, who owns Sparkles by Shell, a Monongahela-based screen print and embroidery business. They are now ...

In this week’s news quiz: University lobbying, Pennsylvania’s history with redistricting, a plea from New Yorkers, and Taylor ...

Ten others were injured, and people who live near the plant were urged to stay inside. Three explosions at U.S. Steel’s ...