Development of AERMOD Dispersion Model

AERMOD is an atmospheric dispersion model developed by U.S.Environmental Protection Agency (EPA)and American Meteorological Society (AMS).Up to date atmospheric boundary and dispersion theories were used in the model,which substituted for ISC(Industrial Source Complex)model to be U.S.regulatory model.AERMOD model was also listed as one of the recommended models in the national technical guidelines of environmental impact assessment(EIA)——atmospheric environment (HJ/T2.2-2008)in China.Lots of studies were done on the model,with focus on comparison studies between AERMOD model and other models and AERMOD model evaluation,meteorological data simulation for successful AERMOD model runs and the application of AERMOD model in certain fields.AERMOD model is superior to the last recommended model in national technical guidelines of environmental impact assessment——atmospheric environmen(tHJ/T2.2-93),but due to its ever developing and not too much application in China,it suggested that the model should pass the appraisal process before its application in a new area or a new city where the model has never been used before,in order to verify its reliability,feasibility and accuracy.