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
Current Air Quality Index | Forecast | Ozone Action Program
 
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)
35 
Good
Health Message: None
Air Quality Index (AQI)
48 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
35 
Good
Particles (PM2.5)
48 
Good
Forecast Discussion: Current Conditions: Much cooler air is being driven into the region this Monday afternoon on brisk northwesterly winds. The cool air is arriving just in time for the start of fall, which officially begins at 10:29 p.m. tonight. Fine particulate levels are on the low side with a good deal of mixing this afternoon, and PM levels are expected to remain low over the next 24 hours. A chilly night is in store for the region tonight as winds diminish. Low temperatures will fall to near 40 degrees in the coolest spots. *** Tuesday's forecast: For the day Tuesday, high pressure will be sitting almost overhead with plenty of sunshine resulting in temperatures recovering to the upper 60s in the afternoon. While fine particulate will increase on Tuesday, levels will remain in the upper good range. *** Extended forecast: High pressure should be in control of the weather as we progress on into the middle and latter part of the week. During the late Wednesday into Thursday time period, a weak area of low pressure will slide by to the south, and create more of an onshore flow and perhaps a few more clouds. Air quality during this period will be highly dependent on how strong this flow is, but for now, we will go with mostly low moderate PM levels. Moderate air quality is then likely for the latter part of the week with very light winds and possible late night and early morning temperature inversions. Temperatures over the long range period will average slightly above normal late September levels.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 19:00 EDT
19
Good
Health Message: None
AQI - Pollutant Details
Ozone 19 Good
Particles (PM2.5) 13 Good

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