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)
80 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
70 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
80 
Moderate
Ozone
50 
Good
Particles (PM2.5)
70 
Moderate
Ozone
50 
Good
Forecast Discussion: Current Conditions as of 2 PM on Tuesday: A northward surge of moisture ahead of an approaching cold front is triggering the development of some showers and thunderstorms, with some possibly severe, through the afternoon and into the evening hours this Tuesday. These showers and thunderstorms will continue into the early morning of Wednesday, before drier conditions take over for the remainder of the day. *** Wednesday’s Forecast: Chances for showers and thunderstorms will continue into the early morning hours on Wednesday before drier conditions move in before the afternoon. A few isolated to scattered showers/thunderstorms may develop Wednesday afternoon, but chances will not be as great as those on Tuesday afternoon. PM-2.5 concentrations that climbed into the moderate range with the rising moisture levels on Tuesday will stay moderate for slightly different reasons on Wednesday. The flow will turn to more westerly, compared to the southerly breeze Tuesday. Smoke from the fires in Canada will once again transport eastward into the region, like we saw earlier in June, with this westerly flow. The breeze will mix some of this down to the surface to keep PM-2.5 concentrations in the mid to upper end of the moderate range. With cloud cover early before increasing sunshine in the afternoon, ozone will be of concern but not to the extent of earlier in June when we were under a ridge of high pressure. While most locations may only see peak concentrations in the higher end of the good range, with the smoke factoring in there is potential for at least a few sites to reach moderate levels. *** Extended Outlook: Unsettled weather will return on Thursday with the next disturbance in this active pattern bringing chances for isolated showers. The trend over the past few model runs is to keep most of this threat just south of the state. PM-2.5 concentrations are likely to remain at moderate levels with elevated moisture and light winds, but mostly cloudy to overcast skies will limit ozone to the higher end of the good range. Chances for showers will continue with the passing of each disturbance almost every other day into early next week. The winds on Friday will turn to more northerly and then easterly, pulling a cleaner air mass into the region. The onshore flow mixed with clouds and sunshine should continue to limit ozone to the good range. PM-2.5 concentrations should fall to the lower end of the moderate range, if not falling back into the good range. --- Roble

Current Conditions
Air Quality Index (AQI)
observed at 12:00 EDT
70
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 70 Moderate
Ozone 28 Good

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