San Pedro Bay Ports Clean Air Action Plan
CAAP Home > Air Quality > Yesterday's Data - summary of the previous day’s air quality and weather data   All data is preliminary 
What is the Air Quality Index? 
Monitored ParameterMax ValueAveraging PeriodUnitsState StandardFederal StandardAir Quality Index
O3 Not Available 1-hr ppm 0.09 - -
O3 Not Available 8-hr ppm 0.07 0.08 -
PM10 Not Available 24-hr µg/m3 50 150 -
PM2.5 Not Available 24-hr µg/m3 - 35 -
NO2 Not Available 1-hr ppm 0.25 - -
CO Not Available 1-hr ppm 20.0 35.0 -
CO Not Available 8-hr ppm 9.0 9.0 -
SO2 Not Available 1-hr ppm 0.250 0.075 -
SO2 Not Available 24-hr ppm 0.04 0.14 -
Wind Speed Not Available 1-hr mph - - -
Wind Direction Not Available 1-hr direction - - -
Temperature Not Available 1-hr deg F - - -
Relative Humidity Not Available 1-hr % - - -
Rain Not Available 1-hr in/hr - - -
RainNot AvailableDaily Totalin---
Rain0.00Monthly Totalin---
Rain4.39Yearly Totalin---
* Indicates reading occurred during instrument calibration


San Pedro Bay Ports Clean Air Action Plan