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's High Tomorrow's High
Air Quality Index (AQI)
55 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
46 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
55 
Moderate
Particles (PM2.5)
46 
Good
Forecast Discussion: A series of frontal boundaries will impact the Delaware Valley this weekend, leading to changeable weather. Saturday will be reminiscent of July, with warm and humid conditions ahead of an approaching cold front. Light surface winds in the morning and the continued presence of regional smoke from fires burning in Mexico and Central America will allow particles to linger in the Moderate range. The front will stall to the south on Sunday. Onshore winds will bring cooler and slightly less humid air into the forecast area, allowing particles to drop into the upper Good range. Sunday’s front will return northward as a warm front, allowing temperatures and humidity to surge again on Monday. Particles will rise back up into the Moderate range. **Extended Forecast: A much stronger cold front will arrive early Tuesday morning. More seasonable air will build into the forecast area during the day, for Good air quality. **Forecast note: 2017 ozone forecasts will begin on Monday, May 1. -Huff

Current Conditions
Air Quality Index (AQI)
observed at 9:00 EDT
72
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 15 Good
Particles (PM2.5) 72 Moderate

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E-Mail Notification
 
Pennsylvania Air Quality Partnership Email