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 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)
52 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
54 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
52 
Moderate
Particles (PM2.5)
48 
Good
Ozone
54 
Moderate
Particles (PM2.5)
53 
Moderate
Forecast Discussion: Current conditions: At 2 p.m. EDT this Monday afternoon, high pressure is slowly building southward from Ontario, Canada. This high will produce warm and dry weather for the region into the middle of this week. A stronger cold front will move through sometime Wednesday night and bring cooler and drier air in behind it for the late week period. Now, on to the forecast details. We will have a mainly clear and cool night tonight with low temperatures in the upper 50s. *** Tuesday's forecast: Sunshine most of the day Tuesday with a warm afternoon. Highs in the middle 80s will permit ozone production to the moderate range by afternoon. Dry air will not allow values of fine particulate out of the upper good range on average Tuesday, with the highest concentrations coming in the morning. Mostly clear Tuesday night with lows near 60 degrees. *** Extended forecast: Periods of clouds and sunshine, warm, and a little more humid for Wednesday. A couple of thunderstorms will pop ahead of a cold front Wednesday afternoon and evening. Ozone production may still be sufficient enough to allow for moderate concentrations, and the light winds will also allow for fine particulate to remain moderate. Cooler and drier air will move in on north to northwesterly winds to kick off September, with a return to good air quality Thursday and Friday. Temperatures will even average a little below normal as we head into the Labor Day weekend.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 10:00 EDT
19
Good
Health Message: None
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
AQI - Pollutant Details
Ozone 19 Good
Particles (PM2.5) 0 Good

Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

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