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 0.018 1-hr ppm 0.09 - -
O3 0.015 8-hr ppm 0.07 0.08 Good
PM10 Not Available 24-hr µg/m3 50 150 -
NO2 0.081 1-hr ppm 0.25 - -
CO 2.835 1-hr ppm 20.0 35.0 -
CO 2.016 8-hr ppm 9.0 9.0 Good
SO2 0.006 1-hr ppm 0.250 0.075 -
SO2 0.003 24-hr ppm 0.04 0.14 Good
Wind Speed 4.5 1-hr mph - - -
Wind Direction N 1-hr direction - - -
Temperature 78.9 1-hr deg F - - -
Relative Humidity 84.4 1-hr % - - -
Rain 0.00 1-hr in/hr - - -
Rain0.00Daily Totalin---
Rain0.38Monthly Totalin---
Rain0.38Yearly Totalin---
* Indicates reading occurred during instrument calibration


Yesterday's Data Chart
San Pedro Bay Ports Clean Air Action Plan