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Primary air pollutant in the River Sioux area:
OZONE - 31 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 18 Good
PM10 - 16 Good
Primary Pollutant: OZONE - 30 Good
Secondary Pollutant: PM2.5 - 21 Good
Primary Pollutant: PM2.5 - 38 Good
Secondary Pollutant: OZONE - 30 Good