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)
63 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
60 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
63 
Moderate
Particles (PM2.5)
60 
Moderate
Forecast Discussion: Current conditions: At 2 p.m. EST this Wednesday afternoon, low pressure over the northeastern U.S. is moving off to the east, and this will eventually be replaced with high pressure presently over the Plains. An increasing pressure gradient is resulting in increased amounts of mixing this afternoon, but most locations will remain in the low moderate range in regards to fine particulate today. Tonight will bring a partly to mostly cloudy sky with temperatures only falling into the middle 30s. *** Thursday's forecast: High pressure will build over the area for Thursday, and there will even be breaks of sunshine by the afternoon. Temperatures will reach close to 50 degrees, and with light mixing, fine particulate matter will average in the lower moderate range. Partly to mostly cloudy Thursday night. *** Extended forecast: The weather pattern will get more active during the long range period, with a strong area of low pressure coming out of the Plains bringing unsettled conditions by early next week. Temperatures over the next several days will continue to be well above normal levels as well. For Friday, a warm front moves through with rain late in the day and at night. Clouds may break for some sunshine Saturday with a new area of high pressure building in. As mentioned previously, a major storm coming out of the Plains will affect the region Sunday night into Monday night with rain, and with the amount of moisture being pulled northward with the system, significant rains are possible. Air quality in the Friday to Sunday period will be mostly in the moderate range in regards to fine particulate, but concentrations will decrease by Monday with increasing onshore flow and rainfall. It may not be until the latter part of next week when temperatures retreat back closer to normal.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 13:00 EST
44
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 24 Good
Particles (PM2.5) 44 Good

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