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 30
Fri
Jul 31
Altoona
50 
46 
52 
Erie
46 
42 
34 
Indiana County
50 
42 
21 
Johnstown
46 
41 
54 
Lehigh Valley
66 
44 
65 
Liberty/Clairton area
50 
44 
26 
Mercer County
45 
39 
46 
Philadelphia
62 
47 
33 
Pittsburgh
50 
44 
66 
Scranton / Wilkes-Barre
46 
39 
68 
State College
44 
38 
40 
Susquehanna Valley
70 
46 
61 
Williamsport
46 
41