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)
47 
Good
Health Message: None
Air Quality Index (AQI)
58 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
47 
Good
Ozone
42 
Good
Particles (PM2.5)
58 
Moderate
Ozone
49 
Good
Forecast Discussion: Current Conditions: A dry, but cooler than normal weather pattern continues across most of the northeastern part of the nation this Wednesday afternoon. Further out to the west and north, there is a weak weather disturbance moving across the eastern Great Lakes. Radar shows showers and thundershowers developing across northern and western parts of the state at present, and we will see some of this activity as well, mainly tonight. Fine particulate is on the rise this afternoon, but is still in the good range in many areas due to dry air still being present. Ozone also continues to be in the good range, but this is also on the rise this afternoon. A couple of showers will be present tonight across the area with continued moderate levels of PM. *** Thursday's forecast: High pressure should produce a mostly dry day for us on Thursday. With light southwest winds and increasing humidity, fine particulate is expected to move into the moderate range. Ozone levels will also be on the rise, and concentrations of this pollutant may go moderate in some areas, especially those downwind of major highways by the afternoon. Afternoon temperatures will climb into the lower to middle 80s. *** Extended forecast: Periods of sun and cloudiness on Friday. High humidity and light winds should keep PM in the moderate range. Afternoon and evening thunderstorms are also expected to develop as well. If these hold off longer than we expect, another day in the moderate range for ozone is possible, but most locations should remain in good territory. Afternoon temperatures mainly in the lower 80s. Over the weekend, a stronger onshore flow develops. Clouds as a result of this may limit how high ozone and temperatures rise. Showers and a thunderstorm are also possible each afternoon. The combination of the southeasterly wind and heavier rainfall potentially falling from thunderstorms could keep air quality down in the good range both days of the weekend. A little less rain, more sunshine, but continued humid conditions early next week may lead to more moderate air quality overall Monday into Tuesday. Temperatures will average close to normal by the early part of next week.--McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 22:00 EDT
59
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 59 Moderate
Ozone 36 Good

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