Air Quality Forecast for San Marcos, California 92078 - The Weather Channel | weather.com
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Today's Air Quality-

67
Moderate

Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Primary Pollutant:

O3 (Ozone)

All Pollutants

67
O3 (Ozone)

Moderate

98.25 µg/m3
3
CO (Carbon Monoxide)

Good

476.67 µg/m3
21
NO2 (Nitrogen Dioxide)

Good

41.15 µg/m3
4
PM10 (Particulate matter less than 10 microns)

Good

4.56 µg/m3
21
PM2.5 (Particulate matter less than 2.5 microns)

Good

4.06 µg/m3
3
SO2 (Sulfur Dioxide)

Good

5.67 µg/m3
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