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 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)
54 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
54 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
54 
Moderate
Ozone
54 
Moderate
Forecast Discussion: At 2 p.m. EDT this Friday afternoon, drier air was being transported into the area on west to northwesterly winds. This has kept ozone levels down into the good range. While there will be full sun Saturday, ozone production will not go into moderate territory. A weak disturbance aloft will result in a couple of showers and a thunderstorm later Sunday into Monday. Ozone during these days will range between upper good and lower moderate depending on the amount of sunshine. A cooldown is in store for the latter part of next week with better air quality.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 4:00 EDT
27
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 27 Good
Particles (PM2.5) 0 Good

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