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)
Health Message: None
Data Not Available
AQI - Pollutant Details
Particles (PM2.5)
Data Not Available
Forecast Discussion: Current Conditions: As of 2 PM on Wednesday, partly sunny skies persist over the region as cooler, drier air continues to build in over the region. Right now, temperatures are hovering in the low 40s compliments of the strong northwesterly flow. The combination of the strong winds along with the cool and dry conditions are helping to keep PM 2.5 levels well within the good range. Expect the good air quality to linger into tomorrow as more seasonable temperatures move in. *** Thursday's Forecast: So for Thursday, mostly sunny skies will prevail during the day as the area of high pressure, which was over the Great Lakes on Wednesday, moves east toward our area. Winds will continue to reside out of the north, but should die down as the high moves in overhead. Temperatures will rise into the low 60s thanks to the abundant sunshine. However, the air mass will remain dry. It is this dryness that will help confine PM 2.5 levels to the good category. *** Extended Outlook: Over the coming days, expect to see temperatures stay seasonably warm early on. Over the weekend, though, temperatures are expected to cool thanks to the passage of a cold front through the region. As the front passes through, expect rain to move through the region. Once the front moves off to our east, winds will shift northerly and allow the cooler temperatures to arrive. Expect these temperatures to remain cool right through Monday. Temperatures will begin to rebound on Tuesday just as a new storm system begins to take shape over the Midwest / Ohio Valley region. This system is expected to be a slow mover, resulting in lingering rain for several days. All of the rain should fizzle by the start of the weekend as our storm system dies over the Great Lakes / Northeastern US. Overall, air quality levels during the period are expected to remain in the good range primarily. The cloud cover and rain will limit ozone formation while the constantly changing air masses will limit PM 2.5's ability to rise. --Nolan

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