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Environmental Monitoring and Assessment

, Volume 184, Issue 4, pp 1921–1927 | Cite as

The distribution of organochlorine pesticides (OCPs) in surface sediments of Bohai Sea Bay, China

  • Yu Liu
  • Chengwen Song
  • Ying Li
  • Yuan Liu
  • Jinming Song
Article

Abstract

The residues of organochlorine pesticides (OCPs) in 19 surface sediments of Bohai Sea Bay were determined in this study. Total OCP concentration in surface sediment ranged from 9.01 to 18.04 ng/g dry weight, with a mean concentration of 12.50 ng/g. These findings are in the mid-range of pesticide concentrations compared to those reported in other regions worldwide. DDTs and HCHs were the predominant species. The α-HCH/β-HCH ratios and the predominant γ-HCH indicate that the technical HCH contamination was due mainly to historical usage, although there appeared to be a fresh input of lindane. The results from \(\left( {\mbox{DDD}\,\mbox{+}\,\mbox{DDE}} \right)\mbox{/}\sum {\mbox{DDTs}} \) and DDD/DDE calculations suggest that the usage of DDT in agricultural activities was not terminated, and the historical/fresh inputs of DDT in these areas could be more easily degraded into DDD under an anoxic condition. PCA implies that the recent usage of DDT could serve as important fresh input sources for OCPs.

Keywords

Residue Organochlorine Sediment DDT HCH Distribution 

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Yu Liu
    • 1
  • Chengwen Song
    • 1
  • Ying Li
    • 1
  • Yuan Liu
    • 1
  • Jinming Song
    • 2
  1. 1.Environmental Information InstituteDalian Maritime UniversityDalianChina
  2. 2.Key Laboratory of Marine Ecology and Environmental Sciences, Institute of OceanologyChinese Academy of SciencesQingdaoChina

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