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 21:00 EDT
80
Moderate
Health Message: Unusually sensitive people should consider reducing 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 80 Moderate
Particles (PM2.5) 59 Moderate
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
85
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
80
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
85
Moderate
Particles (PM2.5)
38
Good
Ozone
80
Moderate
Particles (PM2.5)
48
Good
Forecast Discussion: More summer-like conditions will return to the Delaware Valley on Friday. Humidity will begin to rise, but it will still be one final delightful day before the weather turns unsettled over the weekend. Light/calm surface winds on Friday morning will gradually increase to sustained southeasterly winds in the afternoon. Mostly sunny skies and stagnating morning winds will be sufficient to allow ozone to persist in the Moderate range. Particles will rise to the Good/Moderate threshold in response to rising humidity. **Extended Forecast: An extended string of unsettled days will begin on Saturday as a coastal low pressure system lifts northward along the Atlantic coast. Mostly cloudy skies in the morning will give way to widespread and locally heavy precipitation in the afternoon. These conditions and strong onshore (easterly) flow both aloft and at the surface will ensure Good air quality on Saturday. Although not as widespread, scattered showers will continue throughout the day on Sunday. Sustained southerly surface winds and another day of strong onshore flow will result in persistent Good air quality. -Enlow/Huff
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