7Stuart J, Harrad D. PCBs in environment in British [J]. Environment Pollution, 1994,13(5):131-142.
8Cai Q Y, Mo C H, Wu Q T, et al. The status of soil contamination by semivolatile organic chemicals (SVOCs)in China: A review [J]. Science of the Total Environment, 2008, 389:209-224.
9Buffer J M, Groeger A, Fletcher J. Characterization of monochlorinated biphenyl products formed by plant cells [J]. Bulletin of Environmental Contamination and Toxicology, 1992,49:821- 826.
10Campanclla B F, Bock C, Schroder E Phytoremediation to increase the degradation of PCBs and PCDD/Fs. Potential and limitations [J]. Environmental Science and Pollution Research International, 2002,9( 1):73 85.