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Primary air pollutant in the Lake San Marcos area:
PM2.5 - 56 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:
PM10 - 24 Good
OZONE - 22 Good
Primary Pollutant: PM2.5 - 39 Good
Secondary Pollutant: OZONE - 32 Good
Primary Pollutant: PM2.5 - 50 Good
Secondary Pollutant: OZONE - 37 Good
Primary Pollutant: PM2.5 - 53 Moderate
Secondary Pollutant: OZONE - 42 Good