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Primary air pollutant in the San Marino area:
OZONE - 87 Moderate
If you are unusually sensitive to particle pollution, consider reducing your activity level or shorten the amount of time you are active outdoors.
Primary Pollutant: OZONE - 105 Unhealthy for Sensitive Groups
Secondary Pollutant: PM2.5 - 62 Moderate
Secondary Pollutant: PM10 - 32 Good
Secondary Pollutant: CO - 3 Good
Secondary Pollutant: NO2 - 16 Good
Primary Pollutant: OZONE - 105 Unhealthy for Sensitive Groups
Secondary Pollutant: PM2.5 - 62 Moderate
Secondary Pollutant: PM10 - 35 Good
Secondary Pollutant: CO - 3 Good
Secondary Pollutant: NO2 - 19 Good