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
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
35 
Good
Health Message: None
Air Quality Index (AQI)
47 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
35 
Good
Particles (PM2.5)
47 
Good
Forecast Discussion: Current conditions: At 2 p.m. EST this Friday afternoon, good air quality continues across the area with a brisk west to northwesterly flow. Low pressure located over Quebec, Canada, which is responsible for these winds, will only slowly move eastward over the next couple of days. For tonight, we expect a clear to partly cloudy sky with low temperatures in the lower to middle 30s. *** Saturday's forecast: Sunshine and some cloudiness, brisk, and seasonably chilly Saturday as high pressure slowly builds in from the Midwest. Adequate mixing will retain good air quality, and highs will reach the middle 40s. Partly cloudy Saturday night with winds dropping off some. *** Sunday's forecast: Periods of clouds and sunshine with less wind for the day Sunday, but the air should be mixed enough to where fine particulate is in the upper good range. Highs will reach the middle 40s. A weak area of low pressure will move across our area Sunday night into Monday morning with nothing more than a rain or snow shower. *** Monday's forecast: A rain or snow shower early in the day Monday, then sunshine will reappear by the afternoon. Less mixing may spell higher concentrations of PM2.5, perhaps into the moderate range. *** Extended forecast: The next major weather maker will affect us later Tuesday into Tuesday night with mostly rain, but there can still be some snow or sleet at the onset of precipitation. Onshore south to southeast winds Tuesday will cause fine particulate to go back into good territory. Colder air will follow behind this system for the latter part of next week with temperatures several degrees below normal.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 4:00 EST
35
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 23 Good
Particles (PM2.5) 35 Good
 
Data and Forecasts courtesy of:

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

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