Regional Transport and Dispersion


Roland R. Draxler


Section 2, in NAPAP Report 2, Atmospheric Processes Research and Process Model Development


Introduction - The spreading of pollutants by the atmosphere has received increased attention in recent years, with concerns ranging from the local effects of emissions from nearby industrial sources to the global distribution of pollutants that might influence our climate. In this review a summary of some of the recent research concerning reginal transport and dispersion of pollutants will be presented. The discussion will concentrate on regional scales, involving pollutant source to receptor distances on the order of 1000 km. Although the focus is on the regional scale, micrometeorological influences near pollutant sources and receptor sites can be significant in determining whether a source's pollution becomes a regional concern or whether a regionally distributed pollutant even reaches a receptor.



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