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)
63 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
57 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
63 
Moderate
Ozone
51 
Moderate
Particles (PM2.5)
57 
Moderate
Ozone
46 
Good
Forecast Discussion: A cold front will slowly move through the Philadelphia metropolitan region on Wednesday. Temperatures will return to seasonable values, with scattered clouds and showers. There will not be a significant air mass change with the passage of this front. As a result, particles will remain in the Moderate range, and there should be enough sun for ozone to reach the low Moderate range as well. **Extended Forecast: Increased cloud cover and onshore flow on Thursday will limit ozone to the Good range, while particles will linger in the low Moderate range. Stagnating winds on Friday morning with warm and sunny conditions in the afternoon will allow for Moderate ozone and particle concentrations. -Huff

Current Conditions
Air Quality Index (AQI)
observed at 13:00 EDT
57
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 57 Moderate
Ozone 36 Good

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Pennsylvania Air Quality Partnership Email