区域环境影响评价中大气环境容量的计算方法

Calculation on atmospheric environmental capacity for environmental impact assessment

以上海市某出口加工区SO2环境容量为例,说明大气环境容量计算方法的科学性和实用性.要科学、合理地确定某一区域的大气环境容量,宜综合采用A-P值法、平权法和源强优化法,其中A-P值法是一种逐源控制法,平权法是一种按地面污染浓度贡献的大小进行削减的方法,源强优化法是在满足环境质量控制目标的前提下保证削减总量最小的分配方法.为了保证计算环境容量的可操作性,还可引进反演规划法,该方法基本模型采用窄烟流稀释矩阵模型.

The author took a certain export processing area SO2 environmental capacity as example to illustrate the feasibility and practicability of the calculation method of AEC. A-P value method,average weighing distribution method and source Optimized method can be used for calculation on AEC, in which A-P value method is for every pollution source, average weighing distribution method is adopted in accordance with the contribution of ground pollutant concentration, and source optimized method can guarantee the minimum deduction quantity. Counter-deduce method can also be used in order to guarantee the operation of the calculated AEC, which is based on the ATDL model.