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

AirNow.gov 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)
55 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Data Not Available
AQI - Pollutant Details
Particles (PM2.5)
55 
Moderate
Data Not Available
Forecast Discussion: Moderate air quality is expected this weekend as high pressure builds in over the region. The transition to higher fine particle concentrations begins this evening as winds diminish, becoming near calm by daybreak Saturday. Air quality will begin Saturday in the Good range but, by afternoon, will reach into the Moderate range. Extended Forecast: Fine particle levels will peak on Sunday in the mid-upper Moderate range. Overcast skies will limit vertical mixing and allow particles to accumulate. Winds will shift northeast Sunday afternoon and slowly increase through the evening. By Monday, strong east to northeast winds associated with another offshore storm will provide enough ventilation to improve air quality although the daily average should remain just within the Moderate range. -Ryan

Current Conditions
Air Quality Index (AQI)
observed at 2:00 EST
77
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
AQI - Pollutant Details
Particles (PM2.5) 77 Moderate
Ozone 20 Good

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

E-Mail Notification
 
Pennsylvania Air Quality Partnership Email