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
Wed
Sep 17
Thu
Sep 18
Altoona
aqi not available
aqi not available
27 
Erie
aqi not available
aqi not available
18 
Indiana County
aqi not available
aqi not available
Johnstown
aqi not available
aqi not available
39 
Lehigh Valley
51 
44 
41 
Liberty/Clairton area
45 
40 
54 
Mercer County
aqi not available
aqi not available
25 
Philadelphia
44 
48 
49 
Pittsburgh
50 
45 
117 
Scranton / Wilkes-Barre
aqi not available
aqi not available
40 
State College
aqi not available
aqi not available
13 
Susquehanna Valley
54 
46 
60 
Williamsport
aqi not available
aqi not available