基于污染源布局规划调整的大气环境承载力研究

Research on atmospheric environmental carrying capacity based on adjustment of pollution sources layout

针对环境质量背景值较好的区域,以国家环境质量标准控制目标计算的大气环境承载力较大,规划污染源允许排放量过高的问题,提出建立大气环境承载力线性规划模型,以规划污染源的预测浓度作为控制目标,结合区域污染源布局优化进行大气环境承载力估算的方法,并以平顶山市某产业园区为例进行验证。结果表明:在国家二级标准、一级标准及一级标准50%的控制目标下,SO_(2)大气环境承载力约为规划污染源排放量的7~275倍,NO_(2)为38~129倍;将规划污染源的预测值作为环境质量控制目标,通过污染源布局优化,SO_(2)、NO_(2)的允许排放量为规划污染源排放量的1.23和1.42倍,更接近实际规划需求。

For the areas with better environmental quality background values,the atmospheric environmental carrying capacity calculated based on the national environmental quality standard was relatively large,and the allowable emission of planned pollution was excessively high.In order to solve the above problems,a linear programming model for atmospheric environmental carrying capacity was proposed.Regional atmospheric environmental carrying capacity was estimated with the predicted concentrations of planned pollution sources as the control targets,combined with pollution sources layout optimization.Then,an industrial park in Pingdingshan City was taken as an example for verification.The results showed that,under the control target of national secondary standards,primary standards and 50%of the primary standards,the atmospheric environmental carrying capacity of SO_(2)was about 7 to 275 times emissions of the planned pollution sources,while that of NO_(2)was about 38 to 129 times.Taking the predicted values of the planned pollution sources as the environmental quality control targets,through the optimization of pollution sources layout,the allowable emissions of SO_(2)and NO_(2)were 1.23 and 1.42 times,respectively,of the planned sources emissions,which was closer to the actual planning requirements.