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 18:00 EST
46
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 23 Good
Particles (PM2.5) 46 Good
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
38
Good
Health Message: None
Air Quality Index (AQI)
53
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
38
Good
Particles (PM2.5)
53
Moderate
Forecast Discussion: Thanksgiving Day will be chilly but sunny and dry. Winds will subside as high pressure builds into the Mid-Atlantic region, but there will be enough vertical mixing of the regionally clean air mass to keep particles in the Good range. Sunny skies will persist on Black Friday, and temperatures will return to around average as high pressure moves offshore in the afternoon, setting up southerly flow. Warm air arriving aloft will limit vertical mixing, allowing particles to rise into the low Moderate range. Saturday will be even warmer ahead of another cold front arriving from the west in the late afternoon. Rain is possible in the morning from a storm moving up along the Atlantic coast; there is uncertainty in how far inland precipitation associated with this system will reach, so rain may not extend far enough west to impact the Philly metro area. Regardless, increasing atmospheric humidity and a very strong surface inversion will push particles higher into the Moderate range. Temperatures will plummet again on Sunday as another round of cold and dry air surges into the forecast area behind Saturday’s cold frontal passage. Gusty northwesterly winds will help to return particles to the Good range. Cold and sunny weather will persist on Monday. A clean northwesterly transport pattern 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