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
May 26
Wed
May 27
Altoona
45 
40 
61 
Erie
45 
40 
30 
Indiana County
50 
45 
23 
Johnstown
40 
40 
53 
Lehigh Valley
68 
65 
50 
Liberty/Clairton area
55 
55 
81 
Mercer County
45 
40 
63 
Philadelphia
84 
67 
48 
Pittsburgh
60 
55 
55 
Scranton / Wilkes-Barre
55 
52 
57 
State College
53 
51 
48 
Susquehanna Valley
68 
67 
62 
Williamsport
52 
51 
19