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 17
Fri
Apr 18
Altoona
aqi not available
aqi not available
37 
Erie
aqi not available
aqi not available
31 
Indiana County
aqi not available
aqi not available
31 
Johnstown
aqi not available
aqi not available
45 
Lehigh Valley
45 
58 
52 
Liberty/Clairton area
40 
45 
38 
Mercer County
aqi not available
aqi not available
28 
Philadelphia
33 
33 
54 
Pittsburgh
45 
50 
38 
Scranton / Wilkes-Barre
aqi not available
aqi not available
29 
State College
aqi not available
aqi not available
28 
Susquehanna Valley
45 
60 
46 
Williamsport
aqi not available
aqi not available