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)
62 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
55 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
62 
Moderate
Ozone
55 
Moderate
Forecast Discussion: Very warm and humid conditions this Tuesday afternoon are pushing ozone levels into the moderate range as temperatures are rising into the upper 80s. A little cooler air aloft may spark an afternoon or evening thunderstorm Wednesday, with ozone levels limited to the lower moderate range. A cold front then approaches on Thursday from the Great Lakes, and brings another chance for convection. Ozone will rise no higher than the lower moderate zone. Cleaner air then moves in for the end of the week with a new area of high pressure building.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 8:00 EDT
64
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 64 Moderate
Ozone 1 Good

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Yesterday's Maps and Data
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