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

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Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
68 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
49 
Good
Health Message: None
AQI - Pollutant Details
Ozone
68 
Moderate
Ozone
49 
Good
Forecast Discussion: Ozone levels are on the rise again this Wednesday afternoon but will be held to the middle moderate range by developing showers and thunderstorms. On Thursday, a cold front approaching from the north and west will bring another chance for shower and thunderstorm activity in the afternoon and evening. More clouds than sunshine Friday with a lingering shower still possible. Ozone levels will thus drop into the upper good range. Good air quality will continue into the early part of the holiday weekend.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 0:00 EDT
75
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 75 Moderate
Ozone 20 Good

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