Air Pollution Dispersion

  • Air pollution dispersion is often studied with simple models called box models.  How is the box defined for the Los Angles area????
  • Map of the LA Basin  
  • Here is a 3D map of the LA Basin
  • The ventilation factor gives us a way of relating the pollution concentration to the parameters that control dispersion of the pollution in the local environment.
  • Basically, increasing either the mixing height or the wind speed increases the effective volume in which pollutants are allowed to mix.
  • The larger the volume, the lower the pollution concentration