Current Data

* The Port of Los Angeles completed its upgrade of the air quality monitoring network on October 12, 2023. Click here for current operational status.
* ALL DATA IS PRELIMINARY.
* DATA IS PRESENTED IN PACIFIC STANDARD TIME EVEN DURING DAYLIGHT SAVINGS TIME.

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Coastal Boundary - O3 (1 hr)

 
Monitored ParameterAveraging PeriodCurrent ValueUnitsState StandardFederal Standard
O3 13770881 1 hr 0.044 ppm 0.090 --
O3 13770882 8 hr 0.046 ppm 0.070 0.070
PM10 13770884 24 hr 19.2 ug/m3 50.0 150.0
PM2.5 13770886 24 hr 10.4 ug/m3 -- 35.0
NO2 13770887 1 hr 0.003 ppm 0.180 0.100
CO 13770888 1 hr 0.2 ppm 20.0 35.0
CO 13770889 8 hr 0.2 ppm 9.0 9.0
SO2 13770890 1 hr 0.001 ppm -- 0.075
SO2 13770891 24 hr 0.001 ppm 0.040 0.140
Wind Speed 13770892 1 hr 12.5 mph -- --
Wind Direction 13770893 1 hr E direction -- --
UFP 13770894 1 hr 1,018 counts/cm3 -- --
BC 13770935 1 hr 0.131 ug/m3 -- --
BC 13770936 24 hr 0.231 ug/m3 -- --
Temperature 13770895 1 hr 57.7° deg F -- --
Relative Humidity 13770938 1 hr 91.0 % -- --