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Primary air pollutant in the Holtsville area:
PM2.5 - 26 Good
Enjoy your outdoor activities.
Other Pollutants:
OZONE - 25 Good
Primary Pollutant: OZONE - 48 Good
Secondary Pollutant: PM2.5 - 38 Good
Primary Pollutant: OZONE - 74 Moderate
Secondary Pollutant: PM2.5 - 48 Good