Persistent halogenated compounds in two typical marine aquaculture zones of South China |
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| Institution: | 1. Bioforsk - Norwegian Institute for Agricultural and Environmental Research, Soil and Environment Division, Frederik A. Dahls vei 20, N-1430 Ås, Norway;2. Bioforsk - Norwegian Institute for Agricultural and Environmental Research, Plant Health and Plant Protection Division, Høgskoleveien 7, N-1430 Ås, Norway;3. The Norwegian Forest and Landscape Institute, PO Box 115, N-1431 Ås, Norway;4. Grue Kommune, N-2260 Kirkenær, Norway;1. State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;2. School of Environment and Guangzhou Key laboratory of Environmental Exposure and Health, and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China;3. Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing 100871, China;4. University of Chinese Academy of Sciences, Beijing 100049, China;1. Qingdao Engineering Research Center for Rural Environment, Qingdao Agricultural University, Qingdao 266109, China;2. School of Ocean, Yantai University, Yantai 264005, China;3. Shandong Province Key Laboratory of Applied Mycology, Qingdao 266109, China |
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| Abstract: | Samples of two seawater farmed fish (crimson snapper (Lutjanus erythopterus) and snubnose pompano (Trachinotus blochii)), water, air, sediment, fish feed, macroalgae and phytoplankton were collected from two estuarine bays (Daya Bay and Hailing Bay) in South China. The concentrations of persistent halogenated compounds (PHCs) including polybrominated diphenyl ethers (PBDEs), organochlorine pesticides and polychlorinated biphenyls (PCBs) varied widely with the different sample matrices under investigation. The compositional patterns in fish, fish feed, macroalgae and phytoplankton, as well as the good correlations between the abundances of p,p′-DDT and BDE-209 and their metabolites (i.e., p,p′-DDD and p,p′-DDE for p,p′-DDT and BDE-47 for BDE-209) in fish indicated the occurrence of DDT and PBDE biotransformation in fish body. Finally, the marine aquaculture environment in South China is somewhat biologically impaired by DDT-contaminated water, sediment and fish feed, and there may be some cancer risk associated with fish consumption for humans, especially for urban residents. |
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