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:
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
47 
Good
Health Message: None
Air Quality Index (AQI)
47 
Good
Health Message: None
AQI - Pollutant Details
Ozone
47 
Good
Particles (PM2.5)
46 
Good
Ozone
47 
Good
Particles (PM2.5)
38 
Good
Forecast Discussion: Wednesday will be a pleasant day across the Philadelphia Metropolitan region. High pressure will remain to our south, resulting in clear skies and light northwesterly winds throughout the day. Despite the clear skies, temperatures slightly below normal will limit ozone formation, keeping ozone in the upper Good range for Wednesday. Particles will remain in the Good range. **Extended Forecast: Temperatures and humidity will be on the rise Thursday and Friday, as surface flow shifts to southerly. Temperatures will climb into the upper 80’s °F on Thursday and into the low 90’s °F on Friday. Light winds in the morning hours will increase to breezy conditions in the afternoon/evening on both days with slightly stronger winds on Friday. Clear skies will continue through the end of the work week, and when combined with increasing temperatures, will allow for ozone formation to occur both days in the Delaware Valley. Ozone will rise into the Moderate range for both Thursday and Friday, while particles rise into the upper Good range. -Enlow/Ryan

Current Conditions
Air Quality Index (AQI)
observed at 14:00 EDT
54
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
Ozone 45 Good
Particles (PM2.5) 54 Moderate

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E-Mail Notification
 
Pennsylvania Air Quality Partnership Email