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)
40 
Good
Health Message: None
Air Quality Index (AQI)
47 
Good
Health Message: None
AQI - Pollutant Details
Ozone
40 
Good
Particles (PM2.5)
39 
Good
Particles (PM2.5)
47 
Good
Ozone
45 
Good
Forecast Discussion: Current Conditions: An extensive area of high pressure moving over the upper peninsula of Michigan is drawing cooler and refreshing air southward towards us this Thursday afternoon. Both fine particulate and ozone levels have improved greatly over Wednesday's values. Temperatures will only recover to the upper 70s in most locales this afternoon. Mostly clear and cool tonight with temperatures falling to near 50 degrees in the cooler spots. Fine particulate will rise some later on, but still will average in the upper good range. *** Friday's forecast: High pressure will be right over us for the day on Friday, and will provide another spectacular day weatherwise. Temperatures should warm a few degrees over Thursday's levels, with less of a breeze. The air will remain very dry, so while PM will increase some, upper good levels are most likely. Ozone will likewise remain in the good range despite plenty of sunshine. *** Extended forecast: Warmer and more humid air will move in over the holiday weekend. Sunshine and a few clouds will be the rule for Saturday, with just a chance for a stray afternoon or evening thunderstorm. Fine particulate and perhaps even ozone might move in the direction of moderate concentrations with winds shifting into the southwest and temperatures in the lower 80s. As the air becomes more moist Sunday into Labor Day, there is an increasing chance for afternoon thunderstorms. Fine particulate on these days will likely end up in the moderate zone, and ozone will average in the upper good to lower moderate range, depending on how much convection there is and how fast it can develop. A stronger cold front may then move in for the middle of next week, with seasonably pleasant air behind it in addition to improved air quality.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 22:00 EDT
26
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5) 26 Good
Ozone 24 Good

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