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Primary air pollutant in the Challis area:
PM2.5 - 17 Good
Enjoy your outdoor activities.
Primary Pollutant: PM2.5 - 51 Moderate
Primary Pollutant: PM2.5 - 51 Moderate
Primary Pollutant: PM2.5 - 52 Moderate
Primary Pollutant: PM2.5 - 49 Good
Primary Pollutant: PM2.5 - 45 Good
Primary Pollutant: PM2.5 - 47 Good