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)
48 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
44 
Good
Ozone
41 
Good
Particles (PM2.5)
48 
Good
Ozone
44 
Good
Forecast Discussion: Wednesday will be a pleasant autumn day, with mostly sunny skies and near average temperatures. Surface winds will be light as the center of surface high pressure moves overhead. Light to calm winds will promote the accumulation of pollutants, but with a clean and dry air mass in place, air quality will remain in the Good range. **Extended Forecast: A weak cold front will approach from the north on Thursday and pass through Philadelphia in the afternoon. Little to no precipitation is expected with this front, due to the relatively low atmospheric humidity. Light to calm winds in the morning will pick up and turn northerly in the afternoon with the passage of the front. Another day with light winds and sunny skies will allow ozone and particles to rebound slightly, but the relatively clean air mass will keep air quality in the upper Good range. On Friday, a reinforcing shot of cool and dry air will build in, with breezy onshore winds and Good air quality. -Huff

Current Conditions
Air Quality Index (AQI)
observed at 7:00 EDT
51
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 51 Moderate
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