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

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Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
40 
Good
Health Message: None
Air Quality Index (AQI)
35 
Good
Health Message: None
AQI - Pollutant Details
Ozone
40 
Good
Ozone
35 
Good
Forecast Discussion: Current Conditions: As of 2 PM on Tuesday, mostly sunny skies prevail over the region as an area of high pressure continues its takeover of our weather. The storminess from last night is long gone, thanks to the passage of cold front earlier this morning. Right now, light westerly flow has contributed to temperatures rising into the mid to upper 70s and dewpoints into the low to mid 50s. Overall, the cleansing of the air mass (thanks to the passage of the cold front earlier) has kept ozone levels confined to the good threshold. Expect good air quality to persist into tomorrow as conditions remain seasonably cool and dry. *** Wednesday's Forecast: So for Wednesday, sunny skies will continue to persist thanks to the presence of high pressure over southcentral Canada. The location of the high will keep the winds out of the west, northwest during the day. As a result, expect temperatures to remain within the 70s during the course of the afternoon. Overall, it will be the cooler than normal highs (peak temperatures this time of year are usually near 80) along with the continual dry conditions (dewpoints in the low 50s) along with a well mixed boundary layer that will help to keep ozone levels confined to the good range. --Nolan

Current Conditions
Air Quality Index (AQI)
observed at 1:00 EDT
53
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 53 Moderate
Ozone 5 Good

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