Teshome, Worku (Asst. Prof.)Anteneh, Muheye2020-10-092023-11-102020-10-092023-11-102010-11http://etd.aau.edu.et/handle/12345678/22628This work has been carried out to develop a three dimensional modeling program for pollutant dispersion. The program solves partial differential equation by integrating into one mathematical equation and then various data are taken from literature s and primary sources for verification of the program. The effects of meteorological and stack parameters on dispersion of pollutants ,like wind velocity, ambient air temperature, atmospheric stability, exit temperature, velocity ,concentration and stack height were studied and considered in the program. Several illustrations for reducing maximum ground level concentration using the program are given. The output results from the program are presented in different forms. Different simulation runs and observations were made that clearly illustrate the utility of the program in helping decision makers about air pollution control and effects of different variables in pollution.en-USDispersionAir PollutantThesis