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Primary air pollutant in the National City area:
OZONE - 39 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 26 Good
PM10 - 9 Good
Primary Pollutant: PM2.5 - 77 Moderate
Secondary Pollutant: OZONE - 39 Good
Primary Pollutant: PM2.5 - 50 Good
Secondary Pollutant: OZONE - 40 Good
Primary Pollutant: OZONE - 41 Good
Secondary Pollutant: PM2.5 - 39 Good