Pennsylvania
 
Data courtesy of:
 

 
AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
 
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
Click on the city name for more detailed information.

printable summary
FORECAST CURRENT
AQI
Thu
Apr 24
Fri
Apr 25
Altoona
aqi not available
aqi not available
22 
Erie
aqi not available
aqi not available
21 
Indiana County
aqi not available
aqi not available
29 
Johnstown
aqi not available
aqi not available
25 
Lehigh Valley
35 
45 
31 
Liberty/Clairton area
40 
45 
29 
Mercer County
aqi not available
aqi not available
22 
Philadelphia
31 
46 
56 
Pittsburgh
45 
50 
47 
Scranton / Wilkes-Barre
aqi not available
aqi not available
32 
State College
aqi not available
aqi not available
31 
Susquehanna Valley
40 
50 
58 
Williamsport
aqi not available
aqi not available
33