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
Jul 31
Fri
Aug 1
Altoona
40 
40 
42 
Erie
40 
40 
56 
Indiana County
40 
40 
15 
Johnstown
40 
40 
43 
Lehigh Valley
58 
63 
61 
Liberty/Clairton area
55 
55 
61 
Mercer County
40 
40 
73 
Philadelphia
54 
48 
60 
Pittsburgh
55 
60 
56 
Scranton / Wilkes-Barre
46 
46 
53 
State College
49 
47 
40 
Susquehanna Valley
61 
65 
68 
Williamsport
45 
45 
14