Lehigh Valley
 
Data and Forecasts courtesy of:
 

 
AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
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
 
Data and Forecasts courtesy of:
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
54 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
54 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
54 
Moderate
Particles (PM2.5)
54 
Moderate
Forecast Discussion: Current conditions: At 2 p.m. EDT this Thursday afternoon, sunshine was breaking through the clouds with a southerly flow across the area. Meanwhile, a cold front was moving through the eastern Ohio valley. This front will affect the area later on tonight in the form of a shower or thundershower. With some easterly component of the wind still present, fine particulate remains in the good range this afternoon. *** Friday's forecast: Sunshine and a few clouds for the day Friday with high pressure building back in from the west. The afternoon will be warm as highs move up to around the 80 degree mark. Limited mixing from a westerly direction will bring fine particulate and ozone up into lower moderate territory. *** Extended forecast: The weekend will start off on a warm note as southwesterly flow prevails Saturday to the south of a stalled frontal boundary. More humid with the chance for a shower or thunderstorm. Higher relative humidity will send PM in the moderate range once more, but how high ozone levels get will depend on any developing convection. Winds shift back into the east and northeast Sunday as a quasi stationary front slips just to the south. A shower or two cannot be ruled out, and overall air quality will be good. Warm and humid on Monday with showers and thunderstorms in the late afternoon and evening with a strong cold front approaching. Temperatures will cool back to near normal levels for early May Tuesday into Wednesday with good air quality returning.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 7:00 EDT
53
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
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 8 Good
Particles (PM2.5) 53 Moderate

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