Philadelphia
 
Data and Forecasts courtesy of:
 

 
AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
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
 
Data and Forecasts courtesy of:
Current Conditions
Air Quality Index (AQI)
observed at 14:00 EDT
143
Unhealthy for Sensitive Groups
Health Message: Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy exertion outdoors.
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
Ozone 143 Unhealthy for Sensitive Groups
Particles (PM2.5) 61 Moderate
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
100
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
50
Good
Health Message: None
AQI - Pollutant Details
Ozone
100
Moderate
Particles (PM2.5)
55
Moderate
Ozone
50
Good
Particles (PM2.5)
46
Good
Forecast Discussion: **Update for Monday: There is the potential for isolated Code Orange (Unhealthy for Sensitive Groups or USG) ozone on Monday at locations along the I-95 Corridor. As forecasted, ozone rose quickly on Sunday along I-95, due to subsidence associated with strong high pressure moving overhead. Similar conditions will be present on Monday, along with ample sunshine and well above average temperatures. Winds aloft will shift back to the northeast in the afternoon, however, and onshore surface winds will pick up. This cleaner flow pattern will help to limit rising ozone, along with an earlier sunset relative to the high summer. But with pockets of high regional ozone carry-over from Sunday, isolated USG conditions are possible on Monday. Particles will remain in the Moderate range. **Tuesday will be a bit cooler than Monday, but still much warmer than average. Strong easterly flow aloft will bring clean maritime air into the forecast area, for a return to Good air quality. -Huff
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E-Mail Notification
 
Pennsylvania Air Quality Partnership Email