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)
35 
Good
Health Message: None
Air Quality Index (AQI)
35 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
35 
Good
Particles (PM2.5)
35 
Good
Forecast Discussion: Current Conditions: As of 2 PM on Monday, partly cloudy skies prevail over the region as a line of isolated showers begin to push eastward from Ohio. All of this activity is occurring in the warm air mass in advance of a cold front over the Ohio Valley. Right now, strong southerly winds are forcing temperatures into the low 70s just as the showers are arriving. PM 2.5 concentrations are hovering in the good range as a result of all of the vertical mixing today. Expect the good air quality to persist into tomorrow as a cooler and drier air mass builds in. *** Tuesday's Forecast: So for Tuesday, expect mostly cloudy skies in the morning to give way to partly sunny skies in the afternoon as the cold front, which impacted our weather on Monday, moves off to our east. Winds will turn more out of the west during the day. Winds will stay elevated through the day while driving temperatures back down into the upper 50s. The mix of cold, dry and windy conditions will help PM 2.5 levels to stay within the good threshold. *** Extended Outlook: Over the coming days, expect temperatures to range below normal as an upper level trough settles in over the Northeastern US. This trough will first move into the region once a secondary cold front pushes through late Tuesday into Wednesday. This frontal passage will drive rain into the region before forcing colder and drier air in across western PA. The main culprit of the influx of the new air mass over our area will be an area of high pressure over southcentral Canada and a decaying area of low pressure across eastern Canada. This low pressure system will move out into the Atlantic late this week. As a result, a new storm system will begin to take shape over the Plains. It is this system that is likely to impact our area over the weekend (with more rain). Overall, it is the temperatures and the source of the air mass (from Canada) that will hold PM 2.5 levels within the good threshold. --Nolan

Current Conditions
Air Quality Index (AQI)
observed at 10:00 EDT
23
Good
Health Message: None
AQI - Pollutant Details
Ozone 23 Good
Particles (PM2.5) 13 Good

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