Regulators are temporarily stepping up pollution monitoring in the Mon Valley after a deadly explosion at U.S. Steel’s Clairton Coke Works on Monday sparked worry about the release of toxic gases.

Low-flying aircrafts will be seen across Allegheny County over the next few weeks as the county continues to fight rabid ...

This weekend's distribution continues an effort that has led to a steady decline in rabid raccoons in Allegheny County over two decades.