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Primary air pollutant in the Napa area:
PM2.5 - 51 Moderate
If you are unusually sensitive to particle pollution, consider reducing your activity level or shorten the amount of time you are active outdoors.
Other Pollutants:
OZONE - 26 Good
Primary Pollutant: OZONE - 40 Good
Primary Pollutant: OZONE - 37 Good
Primary Pollutant: OZONE - 37 Good
Primary Pollutant: OZONE - 35 Good
Primary Pollutant: OZONE - 0 Good
Primary Pollutant: OZONE - 0 Good
Primary Pollutant: OZONE - 0 Good