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)
84 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
82 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
84 
Moderate
Particles (PM2.5)
65 
Moderate
Ozone
82 
Moderate
Particles (PM2.5)
67 
Moderate
Forecast Discussion: Current Conditions: At 2 p.m. EDT this Monday afternoon, there was a mostly sunny sky across the region. With light winds and humid conditions, fine particulate was in the mid-moderate range. With the sunshine and heat, moderate levels of ozone were also being experienced. Parts of the area will have a thunderstorm this afternoon into this evening, otherwise tonight will turn out clear to partly cloudy with lows only dropping down to the upper 60s. *** Tuesday's forecast: Very light winds will result in little mixing during the day Tuesday. With more sunshine than clouds, afternoon temperatures will move into the lower 90s. The sunshine and heat will produce ozone concentrations in the high moderate range in the afternoon. With high humidity levels, fine particulate will also be well into the moderate range. *** Extended forecast: The late season heat wave will continue through the middle of this week. Pockets of cooler air aloft can trigger a late day or evening thunderstorm on Wednesday, and this should prevent ozone from rising any higher than the moderate range. PM2.5 will remain well into moderate territory. Highs Wednesday around 90 degrees. High moderate ozone readings are likely to continue Thursday with sunshine and only a few clouds. A cool front will then shift winds into more of an easterly direction by Friday into Saturday, and this maritime air will not only cool us off a little, but result in air quality improvements to the good range.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 5:00 EDT
92
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 92 Moderate
Ozone 14 Good

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