The Department of Environmental Protection and its regional air quality partnerships have forecast an orange air quality action day for ozone for Thursday, May 30, in the Lehigh Valley, Liberty-Clairton, Pittsburgh, Philadelphia, and Susquehanna Valley areas.
The Lehigh Valley region is Berks, Lehigh and Northampton counties. The Susquehanna Valley region is Cumberland, Dauphin, Lancaster, Lebanon and York counties. The Philadelphia region is Bucks, Chester, Delaware, Montgomery and Philadelphia counties. The Pittsburgh region is Allegheny, Armstrong, Beaver, Butler, Fayette, Washington and Westmoreland counties. The Liberty-Clairton region is the municipalities of Clairton, Glassport, Liberty, Lincoln and Port Vue, all in southeastern Allegheny County.
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