Polychlorinated dibenzo-p-dioxins and dibenzofurans in the sediment core from a schistosomiasis area with Na-PCP application in China

  • Ke Xiao
  • Minghui Zheng
  • Bing Zhang
  • Wenbin Liu
  • Xingru Zhao
  • Lirong Gao
Article
  • 192 Downloads

Abstract

Spatial and temporal distribution of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) was explored in the Dongting Lake area. The concentrations of total PCDD/Fs ranged from 15.4 to 38.9 pg I-TEQ g−1 in surface sediments and 0.55 to 38.9 pg I-TEQ g−1 for sediment core. The vertical distributions of PCDD/Fs in the sediment core reflected the past history of using Na-PCP and the impact of the massive flood events on the distribution of PCDD/Fs to some extent. The sediment still acts as significant PCDD/F sources and they would pose a risk to sensitive species, resulting in the risk for human exposure to PCDD/F.

Keywords

PCDD/Fs Sodium pentachlorophenate Sediment core Dongting Lake 

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Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  • Ke Xiao
    • 1
  • Minghui Zheng
    • 1
  • Bing Zhang
    • 1
  • Wenbin Liu
    • 1
  • Xingru Zhao
    • 1
  • Lirong Gao
    • 1
  1. 1.State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijingChina

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