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.

Select A Site
Observation To Graph

Outer Harbor - O3 (1 hr)

 
Monitored ParameterAveraging PeriodCurrent ValueUnitsState StandardFederal Standard
O3 13770738 1 hr 0.043 ppm 0.090 --
O3 13770739 8 hr 0.045 ppm 0.070 0.070
PM10 13770741 24 hr 16.8 ug/m3 50.0 150.0
PM2.5 13770743 24 hr 10.3 ug/m3 -- 35.0
NO2 13770744 1 hr 0.003 ppm 0.180 0.100
CO 13770745 1 hr 0.6 ppm 20.0 35.0
CO 13770746 8 hr 0.6 ppm 9.0 9.0
SO2 13770747 1 hr 0.000 ppm -- 0.075
SO2 13770748 24 hr 0.000 ppm 0.040 0.140
Wind Speed 13770749 1 hr 8.5 mph -- --
Wind Direction 13770750 1 hr SE direction -- --
BC 13770818 1 hr 0.117 ug/m3 -- --
BC 13770819 24 hr 0.313 ug/m3 -- --
Temperature 13770751 1 hr 57.8° deg F -- --
Relative Humidity 13770752 1 hr 99.6 % -- --