A Code Orange Air Quality Action Day has been issued for parts of the Pittsburgh area on Thursday.

Thursday will be a sunny, hot and hazy day in Philadelphia, though a Code Orange Air Quality Alert is in effect for much of ...

On air quality action days, young children, the elderly, and those with respiratory problems, such as asthma, emphysema, and ...

An air quality alert was reported by the National Weather Service on Saturday at 10:18 a.m. in effect until Sunday at ...

On Saturday at 10:18 a.m. the National Weather Service reported an air quality alert in effect until Sunday at midnight for ...

Philadelphia faces a code orange air quality alert, with sensitive groups advised to avoid outdoor activities due to ...

A hot and humid Thursday will bring a Code Orange Air Quality Alert for parts of the Washington, D.C., area, as temperatures climb into the 90s.

A Code Orange Air Quality Alert has been issued for much of the Philadelphia region on Thursday, according to Pennsylvania's Department of Environmental Protection. The alert is in effect for Bucks, ...

Thursday is likely to be the hottest day of the day, so far, and with hazy, hot and humid conditions, officials have issued a ...

The National Weather Service reported an air quality alert at 4:30 p.m. on Wednesday in effect until Thursday at 4 p.m. for ...