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)
31 
Good
Health Message: None
Air Quality Index (AQI)
46 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
31 
Good
Particles (PM2.5)
46 
Good
Forecast Discussion: Thursday will be another cool and dry day for the Philadelphia metropolitan area. Sunny skies and breezy northwesterly winds will persist, and particle concentrations will remain well inside the Good range. **Extended Forecast: On Friday, a cold front will approach from the west, bringing a chance for rain showers in the afternoon and evening. Humidity and cloud cover will increase in the afternoon as winds shift to the south. Particle concentrations will rise in response to higher atmospheric moisture and a period of stagnation in the morning. Wind speeds will pick up in the afternoon, however, and provide enough ventilation to limit daily average particle concentrations to the upper Good range. The cold front will pass through Philadelphia overnight on Saturday. Breezy winds and deep vertical mixing will keep air quality in the Good range for the first half of the weekend. -Huff

Current Conditions
Air Quality Index (AQI)
observed at 6:00 EDT
51
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 51 Moderate
Ozone 29 Good

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Pennsylvania Air Quality Partnership Email