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Primary air pollutant in the Dale City area:
OZONE - 28 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 25 Good
PM10 - 6 Good
Primary Pollutant: PM2.5 - 55 Moderate
Primary Pollutant: PM2.5 - 44 Good
Primary Pollutant: PM2.5 - 53 Moderate
Primary Pollutant: PM2.5 - 53 Moderate