San Pedro Bay Ports Clean Air Action Plan
CAAP Home > Air Quality > Current Data - real-time air quality information   All data is preliminary 
* Indicates reading occurred during instrument calibration  
Monitored ParameterAveraging PeriodCurrent ValueUnitsState StandardFederal Standard
O3 1-hr 0.015 ppm 0.09 -
O3 8-hr 0.020 ppm 0.07 0.08
PM10 24-hr 47.0 µg/m3 50 150
PM2.5 24-hr 22.5 µg/m3 - 35
NO2 1-hr 0.020 ppm 0.25 -
CO 1-hr 0.300 ppm 20.0 35.0
CO 8-hr 0.143 ppm 9.0 9.0
SO2 1-hr 0.002 ppm 0.25 -
SO2 24-hr 0.003 ppm 0.04 0.14
PAH 1-hr 8.4 ng/m3 - -
Wind Speed 1-hr 1.0 mph - -
Wind Direction 1-hr NW direction - -
Current Data Chart
San Pedro Bay Ports Clean Air Action Plan