4.7 Article

Persistent halogenated compounds in two typical marine aquaculture zones of South China

Journal

MARINE POLLUTION BULLETIN
Volume 63, Issue 5-12, Pages 572-577

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2010.12.006

Keywords

Persistent halogenated compounds; Farmed fish; Aquaculture zone; Potential biological effect; Human health risk; South China

Funding

  1. National Natural Science Foundation of China [U0633005, 40821003]
  2. Natural Science Foundation of Guangdong Province [9251064004000002]

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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, rnacroalgae 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. (C) 2010 Elsevier Ltd. All rights reserved.

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