Home > USA > Colorado > Weld County > Johnstown
Primary air pollutant in the Johnstown area:
OZONE - 48 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 23 Good
PM10 - 31 Good
Primary Pollutant: PM2.5 - 0 Moderate
Secondary Pollutant: OZONE - 0 Moderate
Primary Pollutant: PM2.5 - 0 Moderate
Secondary Pollutant: OZONE - 0 Moderate
Primary Pollutant: PM2.5 - 0 Moderate
Secondary Pollutant: OZONE - 0 Moderate