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
Mon
Sep 1
Tue
Sep 2
Altoona
40 
45 
31 
Erie
40 
45 
53 
Indiana County
45 
50 
16 
Johnstown
40 
45 
17 
Lehigh Valley
56 
63 
55 
Liberty/Clairton area
60 
60 
32 
Mercer County
45 
50 
26 
Philadelphia
57 
67 
46 
Pittsburgh
60 
65 
35 
Scranton / Wilkes-Barre
51 
45 
44 
State College
50 
41 
33 
Susquehanna Valley
59 
67 
38 
Williamsport
50 
41 
21