A Code Orange Air Quality Alert has been issued for metro Nashville on Wednesday afternoon.

A Code Blue alert has been issued by the Lebanon County Department of Emergency Services to start Sunday because of decreasing temperatures.

The Pennsylvania Department of Environmental Protection has issued a Code Orange Air Quality Alert for the Susquehanna Valley.

Lancaster County is under a Code Blue alert in response to frigid winter weather. The county’s Homelessness Coalition issued the advisory Tuesday evening to last until Friday morning.

PITTSBURGH (KDKA) — A Code Orange air quality alert has been issued for parts of Allegheny County for poor air quality. The Pennsylvania Department of Environmental Protection has declared a ...

A code orange air quality alert is in effect in Lancaster and surrounding counties through this evening, the Pennsylvania Department of Environmental Protection announced.