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Risk Assessment of Heavy Metal Contaminated Dagu River Sediments

Authors
Publisher
Elsevier B.V.
Publication Date
Volume
8
Identifiers
DOI: 10.1016/j.proenv.2011.10.116
Keywords
  • Sediment
  • Heavy Metal
  • National Oceanic And Atmospheric Administration (Noaa)
  • Florida Department Environmental Protection (Fdep)
  • Sediment Quality
  • Fuzzy Evaluation

Abstract

Abstract In order to investigate heavy metal pollution in Dagu River sediments, 28 sampling sites along the Dagu River were selected and sediment samples were withdrawn. Eight heavy metals including Pb, Cr, Cd, Cu, Ni, Zn, As and Hg were determined for each sample. Fuzzy comprehensive evaluation was used to evaluate the sediment quality, according to the FDEP sediment quality standards, which was improved on the basis of NOAA sediment quality standards. Evaluation results indicate that the pollution of Dagu River sediments by investigated heavy metals is heavy. The contents of Hg, Cu, Ni and Zn in most sampling sediments are far more than the FDEP standards.

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