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

Allegheny County is increasing air quality monitoring after an explosion at a U.S. Steel plant south of Pittsburgh killed two ...

Producers of metals and other raw materials declined as an elevated wholesale inflation reading drove up the value of the U.S. dollar. Chilean copper giant Antofagasta posted an increase in first-half ...

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

Clairton, Pennsylvania was rocked Tuesday by an explosion at the U.S. Steel Clairton Coke Works. Clairton Mayor Richard Lattanzi reflects on the sad day.

Pennsylvania has a huge opportunity to lead in AI — this century’s railroad moment. But will PA seize the moment?

Fire crews could be seen battling flames as heavy smoke rose from the facility. Read more at straitstimes.com. Read more at straitstimes.com.

Moments after an explosion erupted at a U.S. Steel plant outside Pittsburgh, company firefighters, local responders and employees raced in to rescue people from the smoldering wreckage. They were able ...

Two workers died and at least 10 people were injured after multiple explosions at the U.S. Steel Clairton plant.

The tragedy has rocked the Mon Valley, and its congresswoman wants answers. Democratic Congresswoman Summer Lee is ...