Lehigh Valley
 
Data courtesy of:
 

 
AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
 
Local Air Quality Resources
Current Air Quality Index | Forecast | Ozone Action Program
 
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)
48 
Good
Health Message: None
Air Quality Index (AQI)
56 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
48 
Good
Particles (PM2.5)
56 
Moderate
Forecast Discussion: Current Conditions: Rain is falling across the region in the wake of a cold frontal passage this Wednesday afternoon. With the passage of this front, winds are shifting into a west to northwesterly direction and bringing PM concentrations down into the good range. Temperatures are also significantly cooler than Tuesday's warm readings. A weak area of high pressure will build in later on tonight into the day Thursday with seasonably cool and dry air, and mostly good air quality. Partly cloudy tonight with lows bottoming out in the lower 40s. *** Thursday's forecast: A small area of high pressure will provide a period of dry weather with a little sunshine for the day Thursday. A light northwesterly wind will continue to bring cool and dry air in, so fine particulate concentrations will remain in the good range. Partly to mostly cloudy Thursday night with light and variable winds. Air quality concentrations will be on the increase, perhaps into the moderate range by morning. *** Extended forecast: An area of low pressure coming out of the Ohio valley will move eastward and intensify later on Friday into Friday night. A little rain is likely Friday night into early Saturday morning. Light winds and little precipitation on Friday will mean mostly moderate levels of PM2.5. Winds will increase significantly later Friday night into Saturday morning from the north, and this will not only send PM values down to low levels, temperatures will also start to slide as well. Temperatures will be lucky to hit the 50 degree mark over the weekend, with brisk north winds bringing good air quality. A little bit of a warming trend will then occur early next week, with perhaps increases in fine particulate once more.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 7:00 EDT
63
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 63 Moderate
Ozone 0 Good

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