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Primary air pollutant in the Herndon area:
OZONE - 43 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 37 Good
PM10 - 9 Good
Primary Pollutant: PM2.5 - 55 Moderate
Secondary Pollutant: OZONE - 38 Good
Primary Pollutant: PM2.5 - 50 Good
Secondary Pollutant: OZONE - 46 Good
Primary Pollutant: PM2.5 - 53 Moderate
Secondary Pollutant: OZONE - 50 Good
Primary Pollutant: PM2.5 - 50 Good
Secondary Pollutant: OZONE - 47 Good