5J.J.Cao,S.C.Lee,K.F.Ho,et al.Spatial and seasonal variations of atmospheric organic carbon and elemental carbon in Pearl River Delta Region,China[J].Atmospheric Environment,2004,38:4447-4456.
6Pope,C.A.,Burneet et al.,Lung cancer,cardiopulmonary mortality,and long term exposure to fine particulate air pollution,Journal of the American Medical Association,2002,287:1132-1141.
7Sloane,C.S.,Watson,J.G.,Chow,J.C.et al.,Sizesegregate fine particle measurements by chemical species and their impact on visibility impairment in Denver[J].Atmospheric Environment,1991,25:1013-1024.