A SIMPLE MODEL FOR URBAN BACKGROUND POLLUTION

摘要

A simple urban background pollution model is presented. Contributions from the individual area sources, subdivided into a grid net of a resolution of 2km x 2km, are integrated along the wind direction path assuming linear dispersion with the distance to the receptor point. Horizontal dispersion is accounted for by averaging the calculated concentrations over a certain, Wind speed dependent wind direction sector, centred on the average wind direction.