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
 
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)
35 
Good
Health Message: None
Air Quality Index (AQI)
45 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
35 
Good
Particles (PM2.5)
45 
Good
Forecast Discussion: Current Conditions: As of 2 PM on Wednesday, mostly cloudy skies prevail over the region as a frontal system, which pushed through late yesterday, continues to move off to our east. At the same time, an area of high pressure builds in over the Plains. The combination of these two systems is steering our flow out of the west today, tapping into the colder temperatures that were residing over the Midwestern US yesterday. It is windy as well. The combination of the cold, dry and windy conditions have driven PM 2.5 levels well within the good range today. Expect this trend to continue into tomorrow as it remains cold and windy. *** Thursday's Forecast: So for Thursday, cloudy conditions will continue to persist over the region as the area of high pressure, which was over the northern Plains on Wednesday, moves eastward into the Midwest / Great Lakes region. As a result, our winds will remain out of the west, continuing the influx of colder air into our region. In fact, temperatures are only expected to make their way into the mid 30s. As was the case on Wednesday, it is the cold, dry and windy conditions that will help keep the boundary layer well mixed and PM 2.5 levels at a minimum. *** Extended Outlook: Over the coming days, expect temperatures to remain near seasonable levels early on as high pressure stays in control of our weather. The models are indicating a major storm system forming toward the middle of the week next week. Here are the details... As we approach the region, expect the area of high pressure, which was over the Midwest / Great Lakes region on Thursday, to continue to track east. At the same time, a disturbance originating over Texas will move eastward into the southeastern US. This system will stay relatively week and suppressed (thanks to the high to the north). Therefore, we should see relatively little impact here. As we roll into next week, expect a new storm system to move in over the Great Lakes as another low pressure system begins to develop over the southern Mississippi River valley. This second low (from the Mississippi River valley) appears to ride north and strengthen, forming a very strong low over the Great Lakes as we roll into the Christmas holiday. A very strong low will force very strong winds to across our area as we roll into Christmas day. Overall, air quality levels are expected to remain to rise into the moderate range over the weekend thanks to the presence of the high to our north. As a new storm system creates windy conditions as we roll into next week, expect there to be enough mixing to reduce PM 2.5 concentrations. --Nolan

Current Conditions
Air Quality Index (AQI)
observed at 11:00 EST
38
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5) 38 Good
Ozone 7 Good

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