Philadelphia
 
Data courtesy of:
 

 
AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
 
Local Air Quality Resources
Current Air Quality Index | Forecast | Ozone Action Program
 
State Air Quality Resources
Air Quality Partnership of Lehigh Valley - Berks
Air Quality Partnership of the Delaware Valley
Air Quality Partnership of the Susquehanna Valley
American Lung Association (ALA) of Pennsylvania
PA Allergy & Asthma Association
Pennsylvania DEP - BAQ - Contacts
Pennsylvania DEP - BAQ - Current Air Quality Index (AQI) by Area
Pennsylvania DEP - Bureau of Air Quality (BAQ)
Pennsylvania DEP – Air Quality Forecast Home Page
Pennsylvania DEP – Home Page
Southwest PA Air Quality Partnership
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
74 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
59 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
74 
Moderate
Particles (PM2.5)
59 
Moderate
Forecast Discussion: A cold front will slowly move through the Philadelphia metropolitan area on Wednesday, triggering periods of rain all day. Temperatures will rise to near normal in the southerly flow ahead of the front. Overcast skies ample atmospheric humidity will allow particle concentrations to continue in the mid-Moderate range. **Extended Forecast: The front will sag across the southern Mid-Atlantic region on Thursday. A disturbance will move along the front and keep wintery precipitation falling over Philadelphia. As cold air filters in behind the frontal passage, rain will change to sleet and then snow overnight Thursday, and snow will continue through the late afternoon, with in excess of 5 inches of accumulation possible. As precipitation cleans out the atmosphere, particle concentrations will decrease but remain in the Moderate range. An Arctic high pressure system will build into the Mid-Atlantic region on Friday. It will be sunny and dry but cold. Particle concentrations should fall into the upper Good range in the clean and dry air mass, but if there is a fresh layer of snow on the ground, a morning surface inversion could form and allow Moderate air quality to continue. -Huff

Current Conditions
Air Quality Index (AQI)
observed at 13:00 EST
88
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 88 Moderate
Ozone 26 Good

Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

E-Mail Notification
 
Pennsylvania Air Quality Partnership Email