1U. S. EPA. EPA/540/1-89/002 Risk Assessment Guidance for Superfund, Volume: Human Health Evaluation Manual (Part A). Interim Final[S]. Washington D. C. 1989.
3Oliver A J. Groundwater pollution with chlorinated hydrocarbons, a health-based risk assessment[J]. Int Arch Occup Environ Health, 1999, 72(Supp 3): M33-M35.
4Nelson T E. Polycyclic aromatic hydrocarbons in the terrestrial environment:a review[J]. Environ Qual, 1983, 12(4): 427-441.