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 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)
53 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
44 
Good
Health Message: None
AQI - Pollutant Details
Ozone
53 
Moderate
Ozone
44 
Good
Forecast Discussion: At 2 p.m. EDT this Tuesday afternoon, high pressure is bringing sunshine and warm air to the area, and this has aided in the ozone formation that has put concentrations of this pollutant into the moderate range. As a cold front passes us later in the day Wednesday, there will be clouds and a shower or thunderstorm. Ozone will be limited to the good range. Cool and drier air will move in behind this front Thursday into Friday. With a north to northwesterly flow, air quality will remain good.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 16:00 EDT
58
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
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 58 Moderate
Particles (PM2.5) 29 Good

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