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)
41 
Good
Health Message: None
Air Quality Index (AQI)
42 
Good
Health Message: None
AQI - Pollutant Details
Ozone
41 
Good
Particles (PM2.5)
40 
Good
Ozone
42 
Good
Particles (PM2.5)
33 
Good
Forecast Discussion: Tuesday will feel more like early May than late July as an unseasonably cool and dry air mass builds into the Philadelphia metropolitan area behind Monday’s cold front. It will be mostly sunny with light northwesterly flow and Good air quality. **Extended Forecast: The weather on Wednesday and Thursday will be just as nice as on Tuesday, with below average temperatures and low humidity. The center of surface high pressure will move overhead on Wednesday and then just offshore on Thursday, promoting mostly sunny skies and light winds. Formation of afternoon sea breezes both days will allow ozone and its precursors to accumulate along I-95. The air mass in place will be clean enough to keep ozone in the Good range on Wednesday, but ozone will reach into the low Moderate range on Thursday as the air mass begins to modify. Particles will remain in the Good range both days due to relatively low atmospheric humidity. -Huff

Current Conditions
Air Quality Index (AQI)
observed at 16:00 EDT
40
Good
Health Message: None
AQI - Pollutant Details
Ozone 40 Good
Particles (PM2.5) 37 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