Johnstown
 
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
 
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)
78 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
80 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
78 
Moderate
Ozone
80 
Moderate
Forecast Discussion: Ozone levels are moving into the moderate range this Tuesday afternoon in spite of the lower sun angle. Concentrations will again be in the middle moderate range on Wednesday and will be limited to how high they can rise with the chance for afternoon and evening thunderstorm activity. A cool front then approaches the area on Thursday, and limits the formation to no worse than the lower moderate range. Cleaner air will move in on northerly winds on Friday with ozone improving into the good range by the end of the week.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 15:00 EDT
92
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 92 Moderate
Ozone 47 Good

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