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 4:00 EDT
38
Good
Health Message: None
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 20 Good
Particles (PM10) 14 Good
Particles (PM2.5) 38 Good
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)
96
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
100
Moderate
Particles (PM2.5)
60
Moderate
Ozone
96
Moderate
Particles (PM2.5)
62
Moderate
Forecast Discussion: Current conditions: A light south to southeasterly surface flow is keeping both ozone and fine particulate down between the upper good and lower moderate range this Friday afternoon. We expect surface winds will swing around to the southwest over the weekend, and this will act to bring levels of both pollutants a little higher. For tonight, we expect warm and muggy conditions with areas of fog developing towards morning. *** Saturday's forecast: Morning clouds and fog yielding to sunshine Saturday. Rather warm and humid with any convection being limited in scope. With a shift in winds to the southwest, ozone will go higher, but only to the upper moderate range. PM2.5 levels will go into the moderate range as well. *** Sunday's forecast: Times of clouds and sunshine for Sunday with scattered afternoon thunderstorms developing. The developing storms in conjunction with lower Sunday emissions means ozone will only be in the moderate range, and elevated humidity will keep PM2.5 moderate as well. *** Monday's forecast: Monday is the day of greatest concern for ozone development. With high temperatures in the middle 90s, increasing precursor emissions, sunshine most of the day, and limited thunder chances, code ORANGE ozone concentrations are still possible, and we will update this forecast Sunday if needed. Fine particulate should remain at moderate levels. *** Extended forecast: Hot and humid again on Tuesday with partly sunny skies and the chance for high levels of ozone continues. Relief from the potentially poor air quality might not be forthcoming until the mid week period at the earliest when a stronger cool front slowly works it's way towards the Delaware valley.---McAuliffe
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