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)
49 
Good
Health Message: None
Air Quality Index (AQI)
38 
Good
Health Message: None
AQI - Pollutant Details
Ozone
49 
Good
Particles (PM2.5)
49 
Good
Ozone
34 
Good
Particles (PM2.5)
38 
Good
Forecast Discussion: Current conditions: At 2 p.m. EDT this Tuesday afternoon, a weak area of high pressure is keeping the weather dry across the area. With a thick shield of mid and high level cloudiness, ozone concentrations are on the low side, and with a continuing easterly flow, fine particulate matter is also in the good range. Low level moisture pushing to the north will bring a shower or two tonight, with lows not dropping below the middle 50s. *** Wednesday's forecast: After a morning shower, Wednesday will bring clouds and perhaps a little sun. Ozone concentrations will be higher than Tuesday, but only to the upper good range. Onshore flow will keep fine particulate in the good range as well. Low pressure coming out of the Ohio valley will bring rain to the region later on Wednesday night. *** Extended forecast: Rain, and perhaps a thunderstorm will occur for Thursday. Southeast winds with plenty of clouds will spell low levels of PM2.5 and ozone. The low pulls off to the northeast by Friday, with a little sunshine returning. With plenty of mixing from the northwest, air quality will remain good. High pressure will bring dry air and seasonable temperatures for Saturday, but then another cold front comes in with more rain and perhaps thunder Sunday into Sunday night. Air quality over the Memorial Day weekend will be mostly in the good range, with the best chance for any moderate PM or ozone coming on Saturday.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 11:00 EDT
61
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 26 Good
Particles (PM2.5) 61 Moderate

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

E-Mail Notification