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Primary air pollutant in the Napa area:
PM2.5 - 31 Good
Enjoy your outdoor activities.
Other Pollutants:
OZONE - 23 Good
PM10 - 20 Good
Primary Pollutant: PM2.5 - 44 Good
Primary Pollutant: PM2.5 - 50 Good
Primary Pollutant: PM2.5 - 0 Moderate
Primary Pollutant: PM2.5 - 0 Moderate