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, partly cloudy skies prevail over the region as an area of high pressure remains just to our north. At the same time, a frontal system, which was off to our south on Monday, begins to propagate back to our north as a warm front. As a result, temperatures have begun to climb into the low to mid 80s. Dewpoints are hanging in the 60s as well. The cloud cover is continuing to limit ozone formation, which is why levels are hovering in the good category. Expect the good ozone levels to linger into tomorrow as a larger scale storm system moves in. *** Wednesday's Forecast: So for Wednesday, mostly cloudy skies will persist across the region as a storm system rolls into the Great Lakes / Ohio Valley region. This system is slated to push through later in the day. As the storm approaches the region, expect the threat of rain to increase. The additional cloud cover should bump temperatures back toward the low 80s while keeping ozone confined to the good range. --Nolan

Current Conditions
Data Not Available

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