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)
45 
Good
Health Message: None
Air Quality Index (AQI)
40 
Good
Health Message: None
AQI - Pollutant Details
Ozone
45 
Good
Ozone
40 
Good
Forecast Discussion: Current Conditions as of 1 PM on Monday: The active pattern continues again this week with what seems to be a never ending forecast of unsettled conditions this summer. Ozone concentrations again will be limited to the good range on Monday, but may try to approach low moderate levels Tuesday in areas that hold cloud cover off the longest during the afternoon *** Tuesday’s Forecast: Scattered showers and thunderstorms will continue into the early morning hours on Tuesday. We will then see a break in the precipitation, but more will arrive late Tuesday/early Wednesday. Early morning clouds with some areas seeing fog should clear to mostly sunny skies by the afternoon with a southwesterly breeze developing. Cloud cover will develop again during the evening hours, but timing may determine how high ozone concentrations manage to climb for the day. The breezy conditions mixed with the early clouds and increase again in the evening will limit peak values to the good range. *** Extended Outlook: Unsettled weather will continue for much of the remainder of the week with a daily chance for at least a few scattered showers. A mix of sun and clouds on Wednesday will keep ozone concentrations inside the good range. Cloud cover and precipitation look to continue good levels of ozone through the remainder of the week as well. --- Roble

Current Conditions
Air Quality Index (AQI)
observed at 13:00 EDT
79
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 79 Moderate
Ozone 41 Good

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Yesterday's Maps and Data
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