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)
49 
Good
Health Message: None
Air Quality Index (AQI)
41 
Good
Health Message: None
AQI - Pollutant Details
Ozone
49 
Good
Ozone
41 
Good
Forecast Discussion: Periods of clouds and sunshine this Thursday afternoon with warm and humid conditions. While ozone levels are on the rise, levels remain in the lower moderate range. A shower or thunderstorm will also develop in parts of the area this afternoon and evening. Friday will bring periods of clouds and sunshine, with the chance for a couple of showers as well. More clouds will keep ozone levels on the low side. A cleaner air mass then moves in Friday night into Saturday, bringing good air quality. With winds becoming very light as we move into the early part of next week, air quality may slowly deteriorate.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 10:00 EDT
79
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 79 Moderate
Ozone 10 Good

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