Code Orange Air Quality Action Day Expected Tuesday

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PITTSBURGH (KDKA) — A Code Orange Air Quality Action Day is expected for Pittsburgh and the surrounding areas Tuesday.
The Pennsylvania Department of Environmental Protection (DEP) forecast that unseasonably warm air with temperatures in the mid- to upper 80s, a strong ridge of high pressure, light winds and sunshine will bring ozone concentrations to a code Orange level.
The warning affects Allegheny, Westmoreland, Beaver, Butler, Armstrong and Fayette c