Home > USA > California > San Diego County > National City
Primary air pollutant in the National City area:
PM2.5 - 63 Moderate
If you are unusually sensitive to particle pollution, consider reducing your activity level or shorten the amount of time you are active outdoors.
Other Pollutants:
OZONE - 15 Good
PM10 - 60 Moderate
Primary Pollutant: PM2.5 - 71 Moderate
Secondary Pollutant: OZONE - 42 Good
Primary Pollutant: PM2.5 - 73 Moderate
Secondary Pollutant: OZONE - 44 Good