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

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Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
45 
Good
Health Message: None
Air Quality Index (AQI)
39 
Good
Health Message: None
AQI - Pollutant Details
Ozone
45 
Good
Ozone
39 
Good
Forecast Discussion: At 2 p.m. EDT this Thursday afternoon, an area of low pressure passing just to our south is producing scattered thunderstorms across the area. The thunderstorm possibility will continue into this evening, otherwise warm and muggy again overnight. For the day Friday, there will be periods of clouds and sunshine with the chance for a scattering of thunderstorms in the afternoon. Ozone will only rise to the top end of the good range. The next area of low pressure comes out of the Midwest Friday night into Saturday, and brings a more significant round of showers and thunderstorms to the area. Ozone will be held to the good range.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 3:00 EDT
35
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 13 Good
Particles (PM2.5) 35 Good

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