Daily Highs

* The Coastal Boundary station was suspended in April 2020 (until further notice) due to future construction at the wharf.
* ALL DATA IS PRELIMINARY. DATA IS PRESENTED IN PACIFIC STANDARD TIME EVEN DURING DAYLIGHT SAVINGS TIME.

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DateMonitored ParameterMax ValueAveraging PeriodUnitsState StandardFederal StandardAir Quality Index
2020-11-17 O3 0.030 1 hr ppm 0.090 -- --
2020-11-18 O3 0.026 1 hr ppm 0.090 -- --
2020-11-19 O3 0.029 1 hr ppm 0.090 -- --
2020-11-20 O3 0.030 1 hr ppm 0.090 -- --
2020-11-21 O3 0.033 1 hr ppm 0.090 -- --
2020-11-22 O3 0.036 1 hr ppm 0.090 -- --
2020-11-23 O3 0.039 1 hr ppm 0.090 -- --