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 24
Fri
Jul 25
Altoona
45 
45 
25 
Erie
40 
40 
18 
Indiana County
45 
45 
16 
Johnstown
40 
40 
16 
Lehigh Valley
45 
45 
29 
Liberty/Clairton area
45 
45 
32 
Mercer County
40 
40 
25 
Philadelphia
44 
77 
52 
Pittsburgh
50 
50 
46 
Scranton / Wilkes-Barre
40 
42 
22 
State College
37 
39 
23 
Susquehanna Valley
46 
45 
47 
Williamsport
38 
40 
15