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
Fri
Jul 25
Sat
Jul 26
Altoona
45 
45 
31 
Erie
40 
45 
26 
Indiana County
45 
45 
30 
Johnstown
40 
45 
26 
Lehigh Valley
46 
60 
27 
Liberty/Clairton area
45 
50 
24 
Mercer County
40 
45 
36 
Philadelphia
54 
64 
45 
Pittsburgh
50 
55 
54 
Scranton / Wilkes-Barre
42 
48 
32 
State College
39 
47 
30 
Susquehanna Valley
45 
65 
46 
Williamsport
40 
48 
25