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)
Unhealthy for Sensitive Groups
Health Message: Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy exertion outdoors.
Data Not Available
AQI - Pollutant Details
Unhealthy for Sensitive Groups
Particles (PM2.5)
Data Not Available
Forecast Discussion: Wednesday will be an Air Quality Action Day for ozone for the Philadelphia metropolitan area. Very warm, sunny, and stagnant conditions are modifying the air mass in place over Philadelphia. A weak cold front will approach from the northwest on Wednesday afternoon, but only a slight increase in cloud cover is expected, and little to no precipitation. As a result, skies will remain clear over most of the metropolitan area in the afternoon, particularly east of I-95. Several additional key factors will be in place to promote rapidly rising ozone, including temperatures near 90 °F, very light/recirculating winds, a sea breeze, and carry-over of pollutants from Tuesday. Particle concentrations are also on the rise in response to stagnant conditions, and will reach into the mid-Moderate range on Wednesday. **Extended Forecast: Cooler and drier air will filter in behind the cold front for Thursday and Friday. Northwesterly flow will promote a return to Good air quality for both days. -Huff

Current Conditions
Data Not Available

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Yesterday's Maps and Data
Air Quality Maps Archives (by region)

E-Mail Notification
Pennsylvania Air Quality Partnership Email