Home > USA > Idaho > Custer County > Challis
Primary air pollutant in the Challis area:
PM2.5 - 37 Good
Enjoy your outdoor activities.
Primary Pollutant: PM2.5 - 43 Good
Primary Pollutant: PM2.5 - 47 Good
Primary Pollutant: PM2.5 - 44 Good
Primary Pollutant: PM2.5 - 43 Good
Primary Pollutant: PM2.5 - 42 Good
Primary Pollutant: PM2.5 - 45 Good