本溪市大气污染物体积分数预测

Forecast of air environment pollutions density in Benxi City

根据多年常规气象资料和2006年污染源调查资料,确定本溪市大气环境主要污染因子为TSP和SO2。采用GIS技术和EIAA大气环境影响评价助手软件对控制区内的TSP和SO2体积分数进行了预测。预测结果表明,污染主要集中在中部地区,特定工业区以及特定工业区主导风向的下风向地区污染严重,而居住区只有靠近工业区的才出现了污染超标现象;相比较之下,TSP比SO2的污染范围要广、污染程度要深。研究结果表明,预测模型精度较高,预测结果与实测状况基本相符。

According to Benxi conventional meteorological data and the survey of pollution sources in 2006, the main pollution factors are TSP and SO2. By organically unifying the environmental science and the GIS technology, the density of TSP and SO2 in the controlled area were forecast by the EIAA. By the forecast result, pollution concentrates mainly in the middle area, and the specific industrial district as well as the downward of the leader wind direction of specific industrial district are seriously polluted, only the community near the industrial district appears the phenomenon that the pollution figures exceed the allowed figures; by comparison, TSP pollution scope is broader and the pollution degree is more serious than SO2. The result indicates that the forecast model precision is high, the forecast result and actual condition are basically matched.