Lehigh Valley
 
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
Air Quality Action Day Program | Current Air Quality Index | Forecast
 
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)
48 
Good
Health Message: None
Air Quality Index (AQI)
42 
Good
Health Message: None
AQI - Pollutant Details
Ozone
48 
Good
Particles (PM2.5)
47 
Good
Ozone
42 
Good
Particles (PM2.5)
40 
Good
Forecast Discussion: Current Conditions: At 2 p.m. EDT this Tuesday afternoon, a cold front is moving through central parts of the state. A thunderstorm can pop later this afternoon or this evening with the lower levels of the atmosphere still moist. Brisk west to northwesterly breezes this afternoon have kept fine particulate and ozone down into the good range. Turning out mostly clear later on tonight as high pressure builds in. Low temperatures in the lower 60s. *** Wednesday's forecast: Sunshine for the most part on Wednesday with a pleasant afternoon. Temperatures will max out in the lower to middle 80s. With plenty of mixing and vertical ventilation, both ozone and fine particulate are expected to remain in the good range. Mostly clear skies with light winds Wednesday night will send temperatures down into the upper 50s. *** Extended forecast: Times of clouds and sunshine Thursday with another nice afternoon. The presence of dry air should keep fine particulate down in the upper good range, while a fair amount of cloudiness restricts ozone down into the good zone as well. An area of low pressure will then pass just to our south Thursday night into Friday, and could bring a bit of rain. Clouds and rain will keep ozone levels low, and fine particulate might even remain good, depending on the intensity of any rainfall. An area of high pressure then builds back in for the weekend to provide mainly dry conditions, upper good to lower moderate air quality, and temperatures slowly increasing back to normal August levels.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 17:00 EDT
37
Good
Health Message: None
AQI - Pollutant Details
Ozone 37 Good
Particles (PM2.5) 27 Good

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