Organochlorine compounds and polycyclic aromatic hydrocarbonsin surface sediment from Baiyangdian Lake, North China:Concentrations, sources profiles and potential risk
Guocheng Hu , Xiaojun Luo , Fengchao Li , Jiayin Dai , Jianyang Guo , Shejun Chen , Cao Hong , Bixian Mai , Muqi Xu
DOI:
Received May 15, 2009,Revised July 07, 2009, Accepted , Available online
Volume 22,2010,Pages 176-183
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Organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs) were
determined in nineteen surface sediment samples collected from Baiyangdian Lake and its inflowing river (Fuhe River) in North
China. Total concentrations of OCPs, PCBs and PAHs in sediments ranged from 5.4 to 707.6 ng/g, 2.3 to 197.8 ng/g, and 101.3
to 6360.5 ng/g, respectively. The levels of contaminants in Fuhe River were significantly higher than those in Baiyandian Lake. For
hexachlorocyclohexane (HCHs) and dichlorodiphenytrichloroethanes (DDTs), -HCH and p,p0-DDT were predominant isomers; while
for PCBs, PCB 28/31, PCB 40/103, PCB 60, PCB 101, and PCB 118 were predominant congeners. Possible sources derived from
historical usage for OCPs and incomplete combustion fuel, wood, and coal and exhaustion of boats or cars for PAHs. Risk assessment
of sediment indicated that sediments in Fuhe River were likely to pose potential biological adverse impact.
