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)
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 1 PM on Friday: Breezy and mostly cloudy conditions continue on Friday with scattered showers expected throughout the remainder of the day. Unsettled weather will continue into the early part of the weekend until the system parked just to the west finally begins to lift out of the region Saturday into Sunday. High pressure will return early next week. Good air quality is expected into at least early next week. *** Saturday’s Forecast: Scattered showers will continue into Saturday, though temperatures are expected to be at least a little warmer than that of Friday. Breezy easterly flow early, becoming a little more southerly later in the day, will continue to provide ample mixing to help limit PM-2.5 concentrations to the good range. Afternoon highs will vary slightly across the region, but most places will see highs in the upper 60s to low 70s under mostly cloudy skies that will become more of a mix of sun and clouds late in the afternoon. *** Sunday’s Forecast: The cut off system that has been part of the cause for the overcast and wet conditions the past few days will finally continue to lift north and eastward on Sunday. A chance for showers will continue, but the likelihood will be more of the isolated variety during the afternoon hours. Winds will become breezy once again during the afternoon, but more southwesterly than the easterly flow from late in the week. We should still see PM-2.5 concentrations remaining inside the good range. Highs are expected to reach the low 70s for the day. *** Monday’s Forecast: Temperatures will again reach the low 70s on Monday as we see more of a transition from the departing system to high pressure building over the region. A light breeze out of the west to northwest will provide just enough mixing for PM-2.5 concentrations to remain at levels mostly inside the good range. *** Extended Outlook: High pressure will continue to build over the region through the middle of the week with temperatures near normal values under mostly sunny skies. Breezy conditions should help to keep air quality conditions at levels inside the higher end of the good range. The middle portion of the week should be on the dry side. Over the next few days, the track of current Hurricane Matthew will be watched for potential impacts along the east coast. Currently, the only impact this region would see is maybe some potential cloud cover associated with the system. If the actual track ends up further east, as has happened with the last few systems that had looked to hug the coastline in the 5-7 day range, sunshine would be more likely than overcast conditions. Overall, air quality is expected to remain good heading into at least the middle of the week and could continue into late week if conditions allow for it. --- Roble

Current Conditions
Air Quality Index (AQI)
observed at 6:00 EDT
11
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 11 Good
Particles (PM2.5) 3 Good

Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

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