Causes www.pghcitypaper.com Two large air pollution sources will soon be offline. Will Allegheny County’s air quality future be as clean as it can be? The American Lung Association provides yearly air quality rankings for metro areas across the country, and every year, the Pittsburgh region receives failing grades.
Causes stateimpact.npr.org Fracking project at US Steel Plant denied local permit extension A controversial natural gas well at a US Steel Plant near Pittsburgh suffered a setback Thursday night.
Causes www.post-gazette.com Petition demands information about air pollution at U.S. Steel's Edgar Thomson Works The Allegheny County Health Department is being asked to detail its plans to reduce harmful pollution from the Braddock mill.