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)
60 
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)
60 
Moderate
Particles (PM2.5)
54 
Moderate
Forecast Discussion: Current conditions: At 2 p.m. EST this Friday afternoon, plenty of sunshine and record high temperatures more typical of Memorial Day than of late February prevail across the area. The all time record high temperature for February in Allentown is 76 degrees set February 24, 1985, and we may be close to reaching it this afternoon. Meanwhile, south to southwesterly winds are providing a little more mixing than expected, so many locations are averaging in the upper good to low moderate range in regards to fine particulate. Very mild weather will continue overnight with southwesterly breezes keeping temperatures up in the upper 50s. *** Saturday's forecast: Not as warm Saturday with more clouds than sunshine. A cold frontal passage by evening will bring afternoon thunderstorms, and some of these will be strong and gusty. While winds will increase by evening with the cold front, fine particulate during most of the day will average in the lower moderate range. *** Sunday's forecast: Windy and much colder with clouds and some sunshine for Sunday. While it will be some 30 degrees colder from Friday's readings, the temperatures will be close to normal for the end of February. Good air quality will also prevail. *** Monday's forecast: High pressure will be overhead Monday morning, then will move off the east coast by later in the day. A shower of rain cannot be ruled out late, and with much lighter winds, fine particulate may ramp up once again. *** Extended forecast: Our weather pattern will be a progressive one as we move into the month of March. A couple of rounds of rain are possible Tuesday into Wednesday as areas of low pressure come out of the nation's midsection, with above normal temperatures and mostly moderate levels of particulate matter. Turning windy and seasonably chilly late next week behind these systems with particulate matter concentrations at low levels.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 22:00 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 35 Good

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