The simple box model for long-term averages

  • Michel M. Benarie
Part of the Air Pollution Problems Series book series (AIRPP)


It was pointed out by Gifford and Hanna (1973, where further references may be found) and Hanna (1971) that, if equation 6.1 is applied to yearly, seasonal, etc., averages that is, to long-term averages, the estimates for the pollutant concentrations compare favourably with those obtained from other models. Writing equation 6.1 as
where Qtot is the total yearly, seasonal, etc., pollutant emission of the source, A is the area within which the pollutant is being emitted and ū is the yearly, seasonal, etc., average wind velocity and using published average urban pollutant concentrations, Gifford and Hanna obtained table 12.1.


Sulphur Dioxide Average Wind Velocity Climatological Average Sulphur Dioxide Concentration Elevated Point Source 
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Copyright information

© Michel M. Benarie 1980

Authors and Affiliations

  • Michel M. Benarie
    • 1
  1. 1.Institut National de Recherche Chimique AppliquéeVert-le-PetitFrance

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