It's a day of bad air in the Mon Valley.
The Allegheny County Health Department has issued an Air Pollution Watch through Thursday morning; KDKA's Andy Sheehan reports.
It's a day of bad air in the Mon Valley.
The Allegheny County Health Department has issued an Air Pollution Watch through Thursday morning; KDKA's Andy Sheehan reports.
The Allegheny County Health Department will start sending public air quality alerts for the Mon Valley.