supported by the National Natural Sci-ence Foundation of China (No. 70433001);the Knowledge Innovation Project of the Chinese Academy of Sciences(No. KZCX2-YW-422, 324)
A field survey was conducted in a contaminated industrial site of southern Beijing, China to investigate the contents and distribution of the organochlorine pesticides (α-, β-, y-, δ-HCH, p,p'-DDT, p,p'-DDE, p,p...