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)
67 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
54 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
67 
Moderate
Particles (PM2.5)
55 
Moderate
Ozone
54 
Moderate
Particles (PM2.5)
42 
Good
Forecast Discussion: A weak cold front will move through the Philadelphia metropolitan area overnight. A line of thunderstorms will precede the front and clean out the atmosphere. The passage of the front will bring a brief respite from the sweltering heat and humidity of the past several days, although high temperatures on Wednesday and for the rest of the week will continue to be above average. The arrival of less humid air will return particles to the Good range. Full afternoon sun, light winds, and a sea breeze will allow ozone to reach the low Moderate range. **Extended Forecast: Calm winds on Thursday morning will pick up slightly in the afternoon and turn onshore. It will be sunny and very warm, and humidity will begin to rebound. Both ozone and particles will be in the Moderate range. Friday will be even hotter and more humid, with continued sunshine. Surface winds will turn southwesterly by the end of the day, which will promote another day of Moderate air quality. -Huff

Current Conditions
Air Quality Index (AQI)
observed at 21:00 EDT
65
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 65 Moderate
Ozone 36 Good

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E-Mail Notification
 
Pennsylvania Air Quality Partnership Email