参考文献
预防医学

        [1] Yang F,He K,Ye B,et al. One-year record of organic and elemental carbon in fine particles in downtown Beijing and Shanghai[J].Atmospheric Chemistry Physics,2005,5:1449-1457.[2] World Health Organization.Health effects of black carbon[R].Copenhagen:WHO    （共 22001 字）     [阅读本文] >>