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)
49 
Good
Health Message: None
Air Quality Index (AQI)
51 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Ozone
49 
Good
Particles (PM2.5)
48 
Good
Particles (PM2.5)
51 
Moderate
Ozone
42 
Good
Forecast Discussion: Current Conditions: Plenty of clouds with associated low level moisture are controlling the weather picture across the region this Wednesday afternoon. A couple of showers and a thunderstorm will also occur over the next 12 hours. With a few breaks of sunshine, ozone levels are increasing some, and average in the upper good to lower moderate range this afternoon. Most locations will see fine particulate in the upper good range. Turning out partly to mostly cloudy and humid tonight with areas of fog. Low temperatures mainly in the middle 60s. *** Thursday's forecast: Unsettled weather will continue Thursday with showers and a thunderstorm again likely as low pressure passes just to the north of us. Persistent cloud cover will keep ozone concentrations low, but light winds and high moisture levels will keep fine particulate mostly moderate. Afternoon temperatures will climb into the lower 80s. A fair amount of cloudiness Thursday night with a shower or two still possible. *** Extended forecast: High pressure will extend southwestward at the surface and from the west aloft over the weekend into the early part of next week. On Friday, enough moisture will still be present that we have to allow for a couple of showers. Fine particulate will remain in the moderate range, with ozone continuing in the good range. High pressure then builds further into the area over the weekend, which should turn off the showers. With a east to northeast flow, temperatures will average a little below normal during the daytime, but close to normal at night with possible low clouds and some fog. Overall air quality should be good over the weekend, but as high pressure remains close by early next week, fine particulate and perhaps ozone might deteriorate into moderate territory as winds turn very light, and there is a fair amount of sunshine available for ozone generation.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 19:00 EDT
56
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 56 Moderate
Ozone 51 Moderate

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