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 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)
45 
Good
Health Message: None
Air Quality Index (AQI)
43 
Good
Health Message: None
AQI - Pollutant Details
Ozone
45 
Good
Ozone
43 
Good
Forecast Discussion: At 2 p.m. EDT this Thursday afternoon, very warm and humid conditions prevail across the area. A thunderstorm can pop in spots later this afternoon and this evening. Friday, a weakening cold front will be moving to the south and east, allowing for a drier northwesterly flow. This will act to keep ozone in the upper good range. A large area of high pressure will settle over the Mid-Atlantic region this weekend, allowing for more sunshine than clouds. Ozone concentrations might cross the moderate threshold by later Sunday with temperatures well into the 80s.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 22:00 EDT
19
Good
Health Message: None
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.
AQI - Pollutant Details
Ozone 19 Good

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