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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
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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
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Pennsylvania DEP - Bureau of Air Quality (BAQ)
Pennsylvania DEP – Air Quality Forecast Home Page
Pennsylvania DEP – Home Page
Southwest PA Air Quality Partnership

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Air Quality Forecast
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Air Quality Index (AQI)
Health Message: None
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AQI - Pollutant Details
Particles (PM2.5)
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Forecast Discussion: Current Conditions: As of 2 PM on Wednesday, a mix of sun and clouds persist across the region as an area of high pressure moves in over the Northeastern US. The combination of this high and the light southerly winds today have forced temperatures to approach the 70 degree mark. In addition, PM 2.5 levels have risen. The light winds are creating a very limited mixed environment, resulting in some locations reaching the moderate category for PM 2.5. Expect a drop in the concentrations tomorrow after a frontal passage moves through the region. *** Thursday's Forecast: So for Thursday, expect the skies to remain partly to mostly cloudy as the high pressure system, which was over our area on Wednesday, moves east. At the same time, a weak frontal system will press eastward into our area. As the front passes, don't expect much in the form of precipitation. For the most part, it will come through dry. Once it pushes off to our east, our winds will turn out of the north, resulting in slightly cooler and drier air working in. There will be ample mixing though as the winds increase during afternoon. As a result, expect afternoon temperatures to approach 70 while PM 2.5 levels drop toward the good / moderate threshold. --Nolan

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