Air Qualilty

Reid Frazier / Allegheny Front

U.S. Steel on Thursday appealed a penalty from the Allegheny County Health Department over emissions violations at Clairton Coke Works.

Amy Sisk / WESA

 


Some Allegheny County residents use a smartphone app to report foul smells in their communities, and a new version of that app is now available to the rest of the country.

Reid Frazier / StateImpact Pennsylvania

The Allegheny County Health Department has fined U.S. Steel $700,000 for ongoing emissions problems at its coke-making plant in Clairton near Pittsburgh.

Reid Frazier / StateImpact Pennsylvania

After U.S. Steel said repairs at Clairton Coke Works are a month ahead of schedule, the Allegheny County Health Department on Tuesday revised an order against the company that required it to significantly curb emissions from its Mon Valley Works facilities.

Reid R. Frazier / StateImpact Pennsylvania

Twenty Pennsylvania counties are under a state-imposed Code Orange Air Quality alert, including Allegheny, Beaver, Westmoreland and Washington counties. This is due to higher than normal levels of fine particulate pollution, which are tiny particles that can be inhaled and cause health problems. 

The Breathe Project

A new initiative aims to employ citizen scientists to monitor air pollution created at U.S. Steel Corporation plants located in the Mon Valley.

Walter Stein / AP

In 1948, twenty people died when thick smog settled over the small town of Donora, just south of Pittsburgh. But is the city prepared if it happens again?