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)
68 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
78 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
68 
Moderate
Particles (PM2.5)
78 
Moderate
Forecast Discussion: A multi-day stretch of wintery precipitation will impact the Philadelphia metropolitan area Tuesday-Thursday. It will be clear on Tuesday morning as surface high pressure moves overhead. But snow and sleet will overspread the area from west to east starting early Tuesday afternoon before turning to all rain in the evening. A brief surge of cold and dry air overnight will help to inhibit particle formation. The arrival of much warmer air aloft in the afternoon and steadily rising humidity will act to increase particle concentrations later in the day, with overall daily average air quality in the mid-Moderate range. **Extended Forecast: Rain will continue overnight and through the day on Wednesday as a slow-moving cold front makes its way across the Mid-Atlantic region. Light southerly flow and continued high atmospheric humidity will allow particles to rise higher into the Moderate range. The cold front will stall across the Mid-Atlantic on Thursday, and a wave of low pressure will ride along the front, bringing periods of heavy rain to Philadelphia. As cold air filters in behind the front, the rain will change to snow, with several inches of accumulation possible. Breezy winds and heavy precipitation will clean out the atmosphere and drop particle concentrations to the Good range. -Huff

Current Conditions
Air Quality Index (AQI)
observed at 14:00 EST
73
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 73 Moderate
Ozone 33 Good

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Air Quality Maps Archives (by region)

E-Mail Notification
 
Pennsylvania Air Quality Partnership Email