Liberty/Clairton area
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
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
Particles (PM2.5)
Data Not Available
Forecast Discussion: Current Conditions: As of 2 PM on Thursday, overcast skies prevail over the region as a storm system continues to move off to our east. Right now, moderate northwesterly flow is allowing temperatures to drop into the mid 10s. Air quality levels continue to reside in the good range thanks to the intensity of the wind coupled with the cold and dry air mass moving in. Expect one more day of good air quality as an area of high pressure off to our west continues to control our weather. *** Friday’s Forecast: So for Friday, expect the skies to turn mostly sunny as the area of high pressure, which was over the Midwestern US on Thursday, drops south and east and over the Tennessee River valley. The positioning of the high will continue to keep our winds out of the west for much of the day. The additional sunshine will allow afternoon temperatures to rise into the mid 20s. The light winds will allow PM 2.5 levels to rise from Thursday’s values. However, the continual cold and dry conditions will keep levels from rising out of the good category. *** Extended Outlook: Over the coming days, expect to see the overall pattern change. For the past 7 to 8 weeks, a deep trough has been situated over the eastern US. A changing pattern over Northeastern Canada will allow the trough to relax, leading to a more zonal pattern over the US. This pattern change will allow for temperatures to rise over the coming week. The change will begin to unfold this weekend as the high pressure, which was over the Tennessee Valley on Friday, drops over the southern Mid-Atlantic region. Once the high is off to our east, our winds will turn southwesterly, allowing temperatures to rebound. Temperatures are expected to reach near the 50 degree mark next week as the high pressure system controls our weather. Overall, air quality levels are expected to increase as we head through the period. As the warmer temperatures and greater stability move in, PM 2.5 levels are expected to be well within the moderate threshold. --Nolan

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