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)
62 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
47 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
62 
Moderate
Ozone
58 
Moderate
Ozone
47 
Good
Particles (PM2.5)
33 
Good
Forecast Discussion: The passage of a line of thunderstorms through the Philadelphia metropolitan are late Thursday afternoon will help to scrub the atmosphere of ozone precursors for Friday. Despite full sun and light winds, ozone will be limited to the Good due to the arrival of a cleaner air mass. Particles will remain in the Good range as well in response to low humidity. **Extended Forecast: Mostly sunny skies, light surface winds, and pollutant rich air mass transport aloft on Saturday and Sunday will allow ozone to gradually increase into the low Moderate range. Particles will linger around the Good/Moderate threshold as low humidity continues. -Herdt/Huff

Current Conditions
Air Quality Index (AQI)
observed at 18:00 EDT
41
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5) 41 Good
Ozone 35 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