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 19:00 EDT
45
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 45 Good
Particles (PM2.5) 43 Good
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
46
Good
Health Message: None
Air Quality Index (AQI)
42
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
46
Good
Particles (PM2.5)
42
Good
Forecast Discussion: It will be a spectacular weekend in the Delaware Valley, with sunny skies and unseasonably warm weather. High pressure will move overhead on Saturday, limiting atmospheric mixing. Although the air building into the forecast area is quite dry, essentially calm winds all day and a strong morning inversion will trap pollutants near the surface, for low Moderate air quality. As the center of high pressure moves offshore, winds will shift south/southeasterly on Sunday. This transport pattern will bring clean maritime air into the forecast area, allowing particles to drop down into the upper Good range. Stronger southerly flow on Monday ahead of a cold front arriving from the west will push particles a bit lower in the Good range. **Extended Forecast: The cold front will slowly approach the Delaware Valley on Tuesday. Breezy southerly winds and rain in the afternoon will allow Good air quality to continue. -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