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PBDD/Fs in Surface Sediments from the East River, China

Abstract

The contamination status of polybrominated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs) was preliminarily investigated in surface sediments from the East River. The concentrations of eight 2,3,7,8-substituted tetra- to hexa- PBDD/Fs were found to be in the range of 0.32–110 (mean 13) pg g−1 and the corresponding TEQ concentrations were 0.087–18 (mean 2) pg I-TEQ g−1. All sediments were characterized by the dominant PBDFs. 2,3,4,7,8-PeBDF was the most important TEQ contributor, accounting for 47%–77% of the total I-TEQ of PBDD/Fs. PCDD/Fs contributed dominantly to the total TEQs of PCDD/Fs, PBDD/Fs and dioxin-like PCBs in most samples except of the sediment from the Shima River. The higher PBDD/F concentrations in the Shima River may be attributed to the use of BFRs in the electrical and electronics industries, which posed a potential risk of dioxins on ecological system.

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Acknowledgments

This research was financially supported by National Natural Sciences Foundation of China (No. 4080c), Guangdong Province Natural Sciences Foundation (No. 8451064004000324) and Guangzhou institute of Geochemistry (No. GIGCX-07-14). This is contribution No. IS-1076 from GIGCAS.

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Correspondence to M. Ren.

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Ren, M., Peng, P.A., Chen, D.Y. et al. PBDD/Fs in Surface Sediments from the East River, China. Bull Environ Contam Toxicol 83, 440–443 (2009). https://doi.org/10.1007/s00128-009-9761-1

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Keywords

  • PBDD/F
  • East River
  • Sediment
  • Source