高斯迭加模式在区域性大气环境影响评价中多源污染的应用

Application of Multiple-Source Diffusion Model in Regional Atmospheric Environmental Impact Assessment

在区域大气环境影响评价中，经常遇到多个污染源复合污染问题。由于其污染特性与单源污染不同，容易造成评价区局部地区严重污染（如出现高浓度环岛）。本文推荐使用高斯迭加模式进行复合污染的计算，并在此基础上绘制污染物等浓度线图，为环保决策部门提供图文并茂的环评资料，同时也就应用高斯迭加模式计算的产生的各种误差进行了探讨。

Atmospheric environmental impact assessment is to predict pollutants concentration in timespace on the basis of mastering discharge quantity and form of pollutants. The one of main works,in regional atmospheric environmental impact assessment,is how to determine the combination pollution under the condiion of multiple-source. As pollution characteristic,the multiple-source often result in serious part air pollution (height concentration region). The method in this paper was useful for determining combined pollution with multiple-source,drawing equal concentration chart,and the error of using the Gauss multiple-source diffusion models in regional atmospheric environmental impact assessment was also discussed.