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
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 is undergoing maintenance. Updates for the forecasts and current conditions are not available between midnight and 4 am EST.

Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
Health Message: None
Data Not Available
AQI - Pollutant Details
Data Not Available
Forecast Discussion: Current Conditions: As of 2 PM on Tuesday, overcast skies prevail over the region as a cold front approaches the region. In advance of the front, showers continue to develop across eastern Ohio and western PA. The temperatures remain seasonably warm and the air is humid. Ozone remains good thanks to the cloud cover. Ozone levels will stay in the good range tomorrow as a slightly cooler and less humid air mass builds in. *** Wednesday's Forecast: So for Wednesday, expect the skies to turn mostly sunny as the frontal system, which pressed through our region on Tuesday, continues to shift off to our east. At the same time, a new area of high pressure will build in over the Great Lakes and steer our flow more out of the west. This will allow cooler and drier air to build in. As a result, expect high temperatures to peak in the 70s. With the additional sunshine during the afternoon and light westerly flow, expect ozone to remain near the good / moderate threshold. --Nolan

Current Conditions
Data Not Available

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