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: A cold front will approach from the west on Friday. Atmospheric humidity and cloud cover will increase in the afternoon as surface winds shift to the south/southeast. Particle concentrations will rise in response to higher atmospheric moisture and a period of stagnation in the morning. Rain showers will move through the region in the late afternoon and evening, ahead of the front, and help to clean out the atmosphere. In addition, wind speeds will pick up in the afternoon and ventilate the atmosphere. As a result, daily particle concentrations will average in the upper Good range. **Extended Forecast: The cold front will pass through Philadelphia overnight on Saturday. A secondary cold front will arrive in the late afternoon. It will be mostly sunny with a chance of an isolated rain shower in the afternoon. Breezy west/northwesterly surface winds and a very clean transport pattern aloft will keep air quality in the Good range. After the series of fronts clear the region on Sunday, it will be cool and dry, with mostly sunny skies. The northwesterly flow will continue, and air quality will persist in the Good range. -Huff

Current Conditions
Air Quality Index (AQI)
observed at 19:00 EDT
45
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5) 45 Good
Ozone 42 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