5Staglini W M, doelman P, Salomons W, et al. Chemical time bombs: predicting the unpredictable[J]. Environment, 1991, 33:4-30.
6Konstern C J M. Summary of the workshop on delayed effects of chemical in soils and sediments(chemicaL time bombs) with emphasis the Scandinavian region [ J ]. Applied Geochemistry, 1993, 12 : 295 - 299.
7Kaiser J. Toxicologists shed new light on old poisons[ J]. Science,1998,279: 1 850- 1 851.
8Markus J A, Mcbranthey A B. A review of the corttaminati.on of soil with lead( H ) :spatial distribution and risk assessment of soil lead [ J ]. Environment International, 2001, 27 : 399 - 411.
