Home > USA > California > San Diego County > National City
Primary air pollutant in the National City area:
OZONE - 34 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 17 Good
PM10 - 7 Good
Primary Pollutant: OZONE - 54 Moderate
Secondary Pollutant: PM2.5 - 39 Good
Primary Pollutant: OZONE - 61 Moderate
Secondary Pollutant: PM2.5 - 44 Good