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Primary air pollutant in the Smithfield area:
OZONE - 13 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 12 Good
PM10 - 6 Good
Primary Pollutant: PM2.5 - 33 Good
Primary Pollutant: PM2.5 - 37 Good
Primary Pollutant: PM2.5 - 43 Good