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U.S. Air Quality Summary (text)
 
AIRNow Home >> Pennsylvania >> Philadelphia
 
Data courtesy of: Pennsylvania Department of Environmental Protection
 

  • Forecast
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AQI Forecast - http://www.epa.gov/airnow/today/forecast_aqi_20130520_philadelphia_pa.jpg
- http://www.epa.gov/airnow/today/cur_aqi_philadelphia_pa.jpg
AQI Animation - http://www.epa.gov/airnow/today/anim_aqi_philadelphia_pa.gif
 
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
 
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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)
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Southwest PA Air Quality Partnership
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Air Quality Index (AQI)
50 
Good
Health Message: None
Air Quality Index (AQI)
74 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Particles (PM2.5)
50 
Good
Ozone
45 
Good
Ozone
74 
Moderate
Particles (PM2.5)
55 
Moderate
Forecast Discussion: Warm and humid with southerly winds on Tuesday. Fog is likely during the morning hours, which will increase particle concentrations into the moderate range. Although there is a chance of afternoon thunderstorms, especially west of the I-95 Corridor, there will be enough sun to push ozone into the moderate range. Extended Forecast: Wednesday's weather will be similar to Tuesday's in some regards (warm and humid) but cloud cover and the chance of thunderstorms will increase and this will drop ozone back to the good range. Particle concentrations will remain steady in the moderate range. A cold front approaches from the west on Thursday with a further increase in clouds and rain. Both ozone and particle levels remain steady. -Ryan/Huff/Wiles

Current Conditions
Air Quality Index (AQI)
observed at 15:00 EDT
64
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 64 Moderate
Ozone 32 Good

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