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
Wed
Sep 28
Thu
Sep 29
Altoona
aqi not available
aqi not available
47 
Erie
aqi not available
aqi not available
70 
Indiana County
aqi not available
aqi not available
46 
Johnstown
aqi not available
aqi not available
42 
Lehigh Valley
44 
30 
34 
Liberty/Clairton area
50 
33 
46 
Mercer County
aqi not available
aqi not available
41 
Philadelphia
55 
26 
58 
Pittsburgh
45 
40 
56 
Scranton / Wilkes-Barre
aqi not available
aqi not available
39 
State College
aqi not available
aqi not available
46 
Susquehanna Valley
49 
36 
64 
Williamsport
aqi not available
aqi not available
46 
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.