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 is undergoing maintenance. Updates for the forecasts and current conditions are not available between midnight and 4 am EST.

Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
Health Message: None
Data Not Available
AQI - Pollutant Details
Particles (PM2.5)
Data Not Available
Forecast Discussion: It will be an unsettled weekend for the Philadelphia metropolitan area. Saturday will be cool and less windy, with mostly sunny skies in the morning and increasing clouds in the afternoon. Particle concentrations will rise in response to light winds, but sufficient vertical mixing and an unmodified air mass will keep air quality in the Good range. Sunday will be slightly warmer but mostly cloudy and as a low pressure system moves by to the south. It should remain dry in Philadelphia, but light northeasterly winds and a period of stagnation in the morning will push particles into the Moderate range. There is a chance of scattered rain showers on Monday. Breezy northwesterly flow will ventilate the atmosphere and return air quality to the Good range. **Extended Forecast: Weak surface high pressure will build into the Mid-Atlantic region on Tuesday. Continued breezy winds will allow Good air quality to persist. -Huff

Current Conditions
Data Not Available

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

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Pennsylvania Air Quality Partnership Email