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
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
50 
Good
Health Message: None
Air Quality Index (AQI)
55 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
50 
Good
Particles (PM2.5)
55 
Moderate
Forecast Discussion: Current Conditions: As of 2 PM on Friday, mostly sunny skies prevail over the region as a ridge of high pressure extends eastward across the Eastern US. Right now, temperatures are hovering near the 20 degree mark, compliments of a moderate southerly wind. The air mass does remain dry though, which is holding air quality levels near the good / moderate threshold. As temperatures increase over the weekend, expect a gradual rise in the PM 2.5 levels as well. Here are the day-to-day details... *** On Saturday, the skies will turn mostly cloudy as a weak disturbance pushes into the Great Lakes area. The system's passage could trigger some light showers during the day. For the most part, though, it will remain dry. For much of the day, the winds will remain out of the southwest, which, in turn, will force afternoon highs into the mid to upper 30s. The combination of the warmer air along with the slight increase in moisture over the region should be enough to nudge PM 2.5 levels into the moderate range. *** For Sunday, mostly cloudy skies will continue to persist across western PA as higher pressure rebuilds into the region. The passage of the system on Saturday will steer our winds out of the west on Sunday. These winds will keep temperatures within the upper 30s. As warmer air continues to move into the region and higher precursor pollutants moving from the west, expect PM 2.5 levels to stay within the moderate range. *** On Monday, expect the skies to turn mostly sunny as the center of the high pressure sets up shop over the Mid-Atlantic region. This high pressure system will allow our winds to die down as well as allow even warmer air to build in. As a result, expect highs to peak in the low 40s. The combination of the light wind flow and the increasing afternoon temperatures will keep PM 2.5 levels within the moderate category. *** Extended Outlook: As we take a peek into next week, we notice that a warming trend will unfold across the region. This pattern change will begin to unfold over the weekend as the core of the cold in the Northern Hemisphere begins to depart Canada and migrate back over Siberia. This allow the deep upper level trough to break down over the Eastern US and allow much more seasonable air to build in. We will really see temperatures climb through the week as higher pressure dominates our weather. As the winds persist out of the southwest, expect temperatures to climb through the 40s for afternoon highs. For the most part, the weather will remain dry. There could be a couple of days (Tuesday and next weekend specifically) we could see some rain move into the region as moisture makes its way northward out of the Gulf. Overall, though, the influx of warmth should promote higher PM 2.5 levels over the area, which is why most of the week should stay within the moderate threshold. --Nolan

Current Conditions
Air Quality Index (AQI)
observed at 18:00 EST
29
Good
Health Message: None
AQI - Pollutant Details
Ozone 29 Good
Particles (PM2.5) 28 Good

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