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
Tue
Apr 28
Wed
Apr 29
Altoona
35 
35 
33 
Erie
35 
35 
29 
Indiana County
35 
35 
19 
Johnstown
35 
35 
52 
Lehigh Valley
44 
47 
25 
Liberty/Clairton area
40 
40 
48 
Mercer County
35 
35 
19 
Philadelphia
33 
50 
35 
Pittsburgh
45 
45 
64 
Scranton / Wilkes-Barre
34 
40 
22 
State College
36 
40 
22 
Susquehanna Valley
49 
52 
32 
Williamsport
36 
39 
24