Levels and bioaccumulation of organochlorine pesticides (OCPs) and polybrominated diphenyl ethers (PBDEs) in fishes from the Pearl River estuary and Daya Bay, South China

Lingli Guo, Yaowen Qiu, Gan Zhang, Gene J. Zheng, Paul K.S. Lam, Xiangdong Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

128 Citations (Scopus)

Abstract

Fifty fish samples were collected from the Pearl River estuary (PRE) and Daya Bay, South China and were analyzed for DDTs, HCHs, chlordanes and polybrominated biphenyl ethers (PBDEs). Except the high concentrations of DDT observed in fishes, the concentrations of HCHs, chlordanes and PBDEs were low when compared to other regions. BDE-47 was the predominant PBDE congener and the BDE-209 concentrations were relatively low, despite its high concentration in surface sediments. The absence of significant increase of DDT, HCH, chlordane and PBDE concentrations towards higher δ15N values, as well as the lack of a significant correlation (p < 0.1) between log concentrations (lipid normalized) and δ15N, may indicate a weak biomagnification of these chemicals in the food webs. Good agreement was observed between their concentrations and lipid contents of the organisms. Bioconcentration was suggested to be responsible for the accumulation of OCPs and PBDEs in the lower trophic organisms in the studied subtropical waters.
Original languageEnglish
Pages (from-to)604-611
Number of pages8
JournalEnvironmental Pollution
Volume152
Issue number3
DOIs
Publication statusPublished - 1 Apr 2008

Keywords

  • Daya Bay
  • Fishes
  • Organochlorine pesticides (OCPs)
  • Pearl River estuary
  • Polybrominated diphenyl ethers (PBDEs)
  • South China

ASJC Scopus subject areas

  • Toxicology
  • Pollution
  • Health, Toxicology and Mutagenesis

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