Pesticide contamination profiles of water, sediment and aquatic organisms in the effluent of Gaobeidian wastewater treatment plant

• Published in: Chemosphere (Oxford) 2008-07, Vol.72 (8), p.1145-1151
• Main Authors: Li, Xuemei, Zhang, Qinghua, Dai, Jiayin, Gan, Yiping, Zhou, Jun, Yang, Xiangping, Cao, Hong, Jiang, Guibin, Xu, Muqi
• Format: Article
• Language: English
• Subjects: agricultural law; Animal, plant and microbial ecology; Animals; Applied ecology; Applied sciences; aquatic organisms; Bioaccumulation; Biological and medical sciences; China; Continental surface waters; DDT (pesticide); DDT - analysis; DDTs; Earth sciences; Earth, ocean, space; Ecotoxicology, biological effects of pollution; effluents; Engineering and environment geology. Geothermics; environmental indicators; Exact sciences and technology; Fishes - metabolism; food webs; Fresh Water - analysis; Fresh water environment; freshwater fish; Fundamental and applied biological sciences. Psychology; Geologic Sediments - analysis; Geologic Sediments - chemistry; HCB; HCH (pesticide); HCHs; Hexachlorobenzene - analysis; lakes; Lindane - analysis; liver; Natural water pollution; organochlorine pesticides; Pelodiscus sinensis; pesticide residues; Pesticide Residues - analysis; Pollution; Pollution, environment geology; polychlorinated biphenyls; Polychlorinated Biphenyls - analysis; quantitative analysis; sediments; skeletal muscle; trophic relationships; turtles; Turtles - metabolism; Waste Disposal, Fluid; wastewater; wastewater treatment; Water Pollutants, Chemical - analysis; water pollution; water quality; Water treatment and pollution; zooplankton; Zooplankton - metabolism; δ15N
• ISSN: 0045-6535; 1879-1298
• DOI: 10.1016/j.chemosphere.2008.03.049

Organochlorine pesticides (OCPs, including DDT, HCH and HCB) and six indicator polychlorinated biphenyls (PCB 28, 52, 101, 138, 153, and 180) were measured in water, sediment, zooplankton, fish and Chinese softshell turtle ( Pelodiscus sinensis) from Gaobeidian Lake, which is located in the effluent of Gaobeidian wastewater treatment plant (WWTP) in Beijing, China. DDTs were dominant except for in water. In water, the concentrations of DDTs (6.22 ng l −1) and HCHs (18.0 ng l −1) were less than the limits (l000 ng l −1 for DDTs and 5000 ng l −1 for HCHs). However, PCBs concentration (20.8 ng l −1) exceeded the limit (14 ng l −1) suggested by the United States Environmental Protection Agency (USEPA). The high ratio of p, p′-DDT/DDTs (0.80) in water suggested that DDTs had recently been discharged into the ambient environment despite a longtime ban in China. For fish and Pelodiscus sinensis, the accumulation patterns of OCPs and PCBs were different in muscle and liver. And HCB and PCB 153 were significant different in different species ( p < 0.05). PCBs were dominated by PCB 52 in zooplankton, but by PCB 138 and 153 in Pelodiscus sinensis. The highest food web magnification factor (FWMF) was 4.83 for p, p′-DDT and the second highest was 4.36 for PCB 101 in Gaobeidian Lake. As compared with the other studies, biomagnification in the present study was not obvious. Trophic levels and age were two important factors that might contribute to the bioaccumulation in the present study.