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)
44 
Good
Health Message: None
Air Quality Index (AQI)
77 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
44 
Good
Particles (PM2.5)
40 
Good
Ozone
77 
Moderate
Particles (PM2.5)
42 
Good
Forecast Discussion: A cold front will pass through the Philadelphia metropolitan area on Thursday, triggering cloud cover and scattered precipitation, mainly in the morning. The front will bring in a relatively cool and dry air mass along with northwesterly flow. Air quality will be limited to the Good range. **Extended Forecast: Friday will be a beautiful day with sunny skies and light winds as high pressure builds into the area. An afternoon sea breeze and a recirculating surface winds will allow ozone and its precursors to accumulate, bringing ozone concentrations into the mid-Moderate range. Low atmospheric moisture will keep particles in the Good range. Saturday will be similar to Friday in regard to the nice weather and sunny skies. Early morning stagnation and westerly transport aloft will allow for Moderate air quality. -Catena/Huff/Herdt

Current Conditions
Air Quality Index (AQI)
observed at 6:00 EDT
47
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5) 47 Good
Ozone 17 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