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:
Current Conditions
Air Quality Index (AQI)
observed at 21:00 EDT
51
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
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 51 Moderate
Particles (PM2.5) 48 Good
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
42
Good
Health Message: None
Air Quality Index (AQI)
50
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
42
Good
Particles (PM2.5)
50
Good
Forecast Discussion: Current Conditions: Cool and dry northerly winds are blowing clockwise around an area of high pressure centered over the upper Midwest this Friday afternoon, with temperatures still running well below normal in spite of sunshine. Mostly clear and rather cold tonight with low temperatures falling to a frosty 30 degrees in the colder spots. *** Saturday's forecast: Sunshine for the most part Saturday with enough mixing present to keep fine particulate in the good range. The strong April sun will help the mercury recover close to 60 degrees in the afternoon. Mostly clear and not as cold Saturday night as lows drop back to the upper 30s. *** Sunday's forecast: The sun will stick around into the day Sunday with a milder afternoon as high temperatures go into the lower 60s. Enough low level mixing and dry air will keep fine particulate down in the good range, but concentrations will rise some. *** Monday's forecast: Sunshine for the most part to start the new work week with a pleasant afternoon, and temperatures will finally get close to normal late April levels. A morning inversion, overall lighter winds, and limited mixing might mean moderate levels of particles, with the highest concentrations coming during the morning. *** Extended forecast: A slow moving area of low pressure coming out of the southeastern U.S. may bring unsettled weather back to the area Tuesday night into Wednesday. Increasing southeasterly onshore flow out ahead of this system will keep fine particulate at low levels Tuesday into Wednesday. Another area of low pressure coming out of the Ohio valley might then keep April shower chances high into Thursday.---McAuliffe
Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

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