Williamsport
 
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
 
Local Air Quality Resources
 
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
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
46 
Good
Health Message: None
Air Quality Index (AQI)
51 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
46 
Good
Ozone
51 
Moderate
Forecast Discussion: Enough dry air and sunshine are present this Friday afternoon to keep ozone in the good range. Ozone will be on the increase later this weekend, and especially early next week. A warm front will result in a couple of showers or a thunderstorm Sunday into Sunday night. Early next week, a southwest flow will promote very warm and humid conditions with limited chances for any afternoon or evening convection. Therefore, ozone levels will still be elevated to the moderate range in spite of the lower early September sun angle.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 14:00 EDT
36
Good
Health Message: None
AQI - Pollutant Details
Ozone 36 Good

Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)