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 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
Sat
Aug 27
Sun
Aug 28
Altoona
49 
49 
40 
Erie
48 
48 
52 
Indiana County
56 
49 
40 
Johnstown
50 
50 
45 
Lehigh Valley
70 
64 
54 
Liberty/Clairton area
64 
56 
 
Mercer County
55 
50 
36 
Philadelphia
84 
64 
65 
Pittsburgh
54 
57 
100 
Scranton / Wilkes-Barre
60 
52 
44 
State College
49 
52 
38 
Susquehanna Valley
75 
66 
54 
Williamsport
49 
54 
50 
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.