Characteristics of particulate mercury pollution in atmosphere of Changchun and the affecting factors
长春市大气颗粒汞污染特征及影响因子分析

The total suspended particulate matter(TSP) collected by high\|volume sampler was used to determine the particulate Hg of four function sites and one contrast site in Changchun.Experimental results indicated that the value of volume concentraiton and mass concentration of each site in heating time is higher than those of nonheating time.Volume concentration of urban is higher than that of contrast site,and mass concentration of urban lower than that of contrast site,which illustrates that particulate Hg was mainly combined with fine particulate.TSP is the critical factor of particulate Hg;precipitation is the main meterological factor affecting Hg(p) concentration in the atmosphere;coal combustion and wind\|blown soil material are the important sources of particulate Hg in the atmosphere.