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 5
Wed
May 6
Altoona
40 
45 
64 
Erie
40 
45 
58 
Indiana County
45 
50 
41 
Johnstown
40 
45 
45 
Lehigh Valley
76 
62 
59 
Liberty/Clairton area
70 
70 
52 
Mercer County
45 
50 
68 
Philadelphia
90 
63 
64 
Pittsburgh
75 
70 
63 
Scranton / Wilkes-Barre
44 
40 
39 
State College
43 
44 
48 
Susquehanna Valley
77 
65 
60 
Williamsport
42 
40 
36