Liberty/Clairton area
 
Data courtesy of:
 

 
AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
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)
30 
Good
Health Message: None
Air Quality Index (AQI)
35 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
30 
Good
Particles (PM2.5)
35 
Good
Forecast Discussion: Current Conditions: As of 2 PM on Thursday, overcast skies prevail over the region as we continue to deal with an upper level low stationed over the Ohio Valley. The counter clockwise circulation around this low is helping to funnel in moisture from the south and east. This flow should continue the threat of showers through the evening hours. Right now, the surface winds are out of the east, which, in combination with the cloud cover and rain, is helping to limit temperatures to near 60. The combination of the cool and wet conditions are keeping PM 2.5 levels confined to the good range. Expect good air quality to stay in place through the day tomorrow as the overall weather remains inclement. *** Friday's Forecast: So for Friday, mostly cloudy skies will continue to persist as the upper level low, which resided over the Ohio Valley on Thursday, continues to slowly weaken. The proximity of the low to our region will mean we should continue to see a threat of showers over our area. With east to southeast flow prevailing during the day, expect afternoon temperatures to peak in the upper 60s. The combination of the cool, wet and windy conditions will keep PM 2.5 levels within the good range. *** Extended Outlook: Over the coming days, the decaying area of low pressure to our west will continue to dominate our weather early in the period. Once this system lifts off to the north and east over the weekend, expect higher pressure to build in. This higher pressure, centered over eastern Canada, will allow conditions to dry and warm over our area as we head into midweek. Overall, air quality levels should begin to rebound late in the weekend once the area of high pressure begins to establish itself to our north. Expect the air quality to transition from good to moderate during this time frame and remain in the moderate range for the first half of next week. --Nolan

Current Conditions
Air Quality Index (AQI)
observed at 12:00 EDT
17
Good
Health Message: None
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
AQI - Pollutant Details
Ozone 17 Good
Particles (PM2.5) 1 Good

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