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)
84 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
50 
Good
Health Message: None
AQI - Pollutant Details
Ozone
84 
Moderate
Particles (PM2.5)
53 
Moderate
Particles (PM2.5)
50 
Good
Ozone
49 
Good
Forecast Discussion: A weak cold front will reach the Philadelphia metropolitan area on Tuesday morning. The front will continue to slowly move eastward during the day. The front will not be strong enough to initiate thunderstorms, so mostly sunny skies are expected. The main impact of this front will be a line of converging winds near I-95, which will allow ozone to reach the upper Moderate range. Increasing humidity ahead of the front and light winds in the morning will promote low Moderate particle concentrations. **Extended Forecast: A clean and slightly drier air mass will move into the forecast area on Wednesday behind the front, for a return to Good air quality. Thursday will be mostly cloudy with a chance of evening showers as an area of low pressure approaches from the west. Cloud cover will limit ozone to the Good range, but particles will rebound into the low Moderate range due to increasing humidity. -Huff

Current Conditions
Air Quality Index (AQI)
observed at 11:00 EDT
45
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5) 45 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