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)
41 
Good
Health Message: None
Air Quality Index (AQI)
40 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
41 
Good
Particles (PM2.5)
40 
Good
Forecast Discussion: Current conditions: At 2 p.m. EDT this Tuesday afternoon, cooler air is being delivered into the area by a brisk west to northwest flow in the wake of a strong cold front which moved through Monday night. Plenty of strong mixing has resulted in fine particulate values being low as well. With sunshine and some clouds this afternoon, temperatures will crack the 60 degree mark in many areas. A reinforcing shot of chilly air is in the cards for later on this week, with temperatures 15 degrees below normal by Friday. Tonight will bring a partly to mostly cloudy sky with lows bottoming out in the lower 40s. *** Wednesday's forecast: A cold front will move through the region later Wednesday, and bring rain and rain showers near to and out ahead of it. With clouds and the rain expected, high temperatures will only manage to get into the lower to middle 50s. Fine particulate will remain in the good range as a brisk northwest flow continues. Brisk and cold Wednesday night with lows in the lower 30s. *** Extended forecast: A below normal temperature regime will continue into the upcoming weekend, with unseasonably chilly weather on tap for Thursday and Friday. High temperatures might not reach 50 degrees on these days if there are more clouds than sunshine. High pressure will lighten up the winds some over the weekend and bring temperatures up a little, but still below normal for late April. Overall levels of PM will remain on the low side in the long range period due to a continued flow from the northwest bringing in the cool, dry air.--McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 14:00 EDT
32
Good
Health Message: None
AQI - Pollutant Details
Ozone 32 Good
Particles (PM2.5) 29 Good

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