贵阳市二氧化硫和酸沉降污染来源及控制战略

A Regional Scale Analysis and Control Strategy for SO_2 Pollution and Acid Deposition in Guiyang City

采用一个综合区域空气质量 酸沉降模型 ,对典型气象条件下贵阳市、贵州省和整个西南地区不同尺度的SO2 控制情景进行模拟。数值模拟结果表明 ,贵州全省大点源排放是贵阳市酸沉降的最主要贡献者 ;贵阳市内的大电厂对贵阳市的SO2 污染有一定的贡献 ,但对硫酸盐浓度和酸沉降贡献则较小。在此基础上 ,提出了贵阳市酸沉降和SO2

Different scenarios of Guiyang,Guizhou and Southwestern China as a whole for SO\-2 control of Guiyang City have been simulated using a complex regional air quantity/acid deposition model CHAQM.The simulation results show that the large point sources (LPSs) of Guizhou Province contribute most to the acid deposition at Guiyang. The local power stations contribute some to local concentration of SO\-2 and little to the concentration of sulfate and deposition.Based on above findings,a control strategy for Guiyang City to control acid deposition has been suggested.