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)
50 
Good
Health Message: None
Air Quality Index (AQI)
59 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
50 
Good
Particles (PM2.5)
59 
Moderate
Forecast Discussion: Current conditions: At 2 p.m. EDT this Thursday afternoon, high pressure overhead is beginning to shift off to the east. Warmer air will move back into the area, starting Friday, but with the arrival of the higher temperatures will come higher relative humidity as well as increasing PM2.5 concentrations. Not as cold tonight with clouds coming in later on. Lows will drop into the middle 20s. *** Friday's forecast: Rather cloudy and turning milder Friday with a period of rain during the midday and afternoon. This rain might start as a bit of sleet or freezing rain Friday morning. Lighter winds and higher humidity will send fine particulate concentrations higher, perhaps into the moderate range. Rather cloudy and mild Friday night with low temperatures in the middle 40s. *** Extended forecast: Clouds for the most part Saturday with a very mild afternoon as temperatures move into the middle and upper 60s. Light southwesterly winds will keep fine particulate levels in the moderate range. A couple of areas of low pressure coming out of the Midwest will keep the weather unsettled from Sunday into the early part of next week with an area of rain coming late Sunday into Sunday night, and another later Tuesday into Tuesday night. Fine particulate concentrations will be lowest when the rainfall is heaviest, but may elevate to moderate where winds are light and little rain is falling.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 16:00 EDT
54
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 40 Good
Particles (PM2.5) 54 Moderate

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