The Calculation of Long Period Mean Pollutant Concentrations in an Urban Atmosphere. Part II:Simulation of Annual Sulfur Dioxide Concentrations in Mexico City,

摘要

In Part I of this report,general formulas for the long term mean and mean square concentrations of linearly reactive pollutants were derived from Lagrangian diffusion theory. The derivation was achieved by subdividing the long term averaging interval into three disjoint domains designated the plume period,the stagnation period,and the transient period. Events in each domain are modeled separately and superposed to obtain the final estimate of the long term mean concentration. In Part II of this report the theory developed in Part I is applied to sulfur dioxide levels in Mexico City.