Mercer County
 
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)
50 
Good
Health Message: None
Air Quality Index (AQI)
62 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
50 
Good
Ozone
62 
Moderate
Forecast Discussion: High pressure is producing dry and pleasant conditions across the area this Friday afternoon. Ozone concentrations will be on the rise, especially as we move on into the early part of next week. Plenty of cloudiness and perhaps a shower Saturday and Saturday night will keep ozone levels good. Moderate ozone is possible by the early part of next week as temperatures rise into the middle and upper 80s in spite of the lower early September sun angle.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 22:00 EDT
69
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 69 Moderate
Ozone 24 Good

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