Philadelphia
 
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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

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Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
71 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Data Not Available
AQI - Pollutant Details
Ozone
71 
Moderate
Particles (PM2.5)
48 
Good
Data Not Available
Forecast Discussion: Sunday will be a delightful early summer day, with temperatures in the low 80s °F and low humidity. Light southwesterly winds will pick up slightly in the afternoon. Ozone will rise into the Moderate range under strong late May sun and recirculating transport aloft. Particle concentrations will rise but remain in the Good range in the dry and relatively clean air mass. **Extended Forecast: Temperatures and humidity will steadily rise all through next week as a “ridge” of high pressure sits over the Mid-Atlantic region. Memorial Day will be warm, with temperatures reaching the mid-80s °F. Another day of full afternoon sun and strong subsidence will push ozone to the upper Moderate range. Particles will respond to the rising humidity by reaching the low Moderate range. On Tuesday, the chance for more onshore (cleaner) flow and increasing afternoon cloud cover will limit rising ozone, but concentrations will remain in the mid-to-upper Moderate range. Particles will also linger in the low Moderate range. -Huff

Current Conditions
Data Not Available

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