A flood watch is in effect for most of the Philadelphia region through late Wednesday as heat, humidity and storms make a comeback.

This exposure can be exacerbated while moving quickly, Diaz-Sanchez says. And even exposure to one spike can be “really bad,” ...

A devoted dad has been identified as one of the two steel workers killed from an explosion at a Pennsylvania steel plant on ...

Authorities confirmed a second fatality after an explosion at the U.S. Steel Clairton Coke Works facility outside of Pittsburgh.

The Pennsylvania Department of Environmental Protection (DEP) has declared a Code Orange Air Quality Action Day for Tuesday ...

An air quality alert was reported by the National Weather Service on Tuesday at 9:10 a.m. in effect until 11 p.m. for Western ...

An extreme June heat wave that prompted a heat health emergency declaration killed five people in the city and had been made ...

Sunday will have plenty of sunshine and light southerly breezes. However, several Pennsylvania counties will be under an air ...

The Pennsylvania Department of Environmental Protection (DEP) has declared a Code Orange Air Quality Action Day for ozone for ...

Sunday will be gorgeous — plenty of sunshine, light southerly breezes, and highs in the mid to upper 80s. However, several ...

Children, older adults and those with respiratory conditions are urged to avoid avoid strenuous or long activities outdoors ...