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《Environmental Protection Science》 2010-02
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Application of Smoke Photographic Method in Study on Atmospheric Diffusion Characteristics of Alluvial-Deluvial Fan in Autumn

Huang Yun-gui et al  
The treatment of pollution diffusion in terrain of alluvial-deluvial fan in autumn should strengthen the study on diffusion parameters.The paper studies the vertical diffusion parameters with the smoke photographic method,and compares the theoretical curve and experimental curve of the vertical diffusion parameters.Then the theoretical value and the experimental value of down wind axis concentration are discussed.It is concluded that the terrain and the stability of alluvial-deluvial fan are more beneficial for the diffusion and dilution of pollutants than that of the plain.By analyzing the atmospheric diffusion in terrain of alluvial-deluvial fan,it is indicated that the accurate diffusion parameter is needed to calculate pollutants diffusion within 1km,and it is acceptable with theoretical value beyond 1km.
【CateGory Index】: X51
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