On top of the fact that Wednesday is a messy, murky day weather-wise in the tri-state area, much of the region is also under an air quality alert due to elevated levels of fine particulate matter (PM ...
Part of the Breathe Philly initiative​, more than 70 ground-level monitors installed across Philadelphia will provide hourly ...
Air quality alerts can be typical during the hot summer months.
An air quality alert was issued by the National Weather Service in Upton on Tuesday, Feb. 17.