• 中文核心期刊
  • 中国科技核心期刊
  • ISSN 1007-6336
  • CN 21-1168/X
Volume 36 Issue 5
Sep.  2017
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LI Ping, GUO Xiao-juan, YANG Qing-shu, LUO Xiang-xin, LIU Feng, DONG Han-ying, TAN Chao. Distribution characteristics and ecological risk assessment of heavy metals in surface sediments in Modaomen distributary mouth of Pearl River Estuary[J]. Chinese Journal of MARINE ENVIRONMENTAL SCIENCE, 2017, 36(5): 746-753. DOI: 10.13634/j.cnki.mes20170517
Citation: LI Ping, GUO Xiao-juan, YANG Qing-shu, LUO Xiang-xin, LIU Feng, DONG Han-ying, TAN Chao. Distribution characteristics and ecological risk assessment of heavy metals in surface sediments in Modaomen distributary mouth of Pearl River Estuary[J]. Chinese Journal of MARINE ENVIRONMENTAL SCIENCE, 2017, 36(5): 746-753. DOI: 10.13634/j.cnki.mes20170517
shu

Distribution characteristics and ecological risk assessment of heavy metals in surface sediments in Modaomen distributary mouth of Pearl River Estuary

  • 1.

    Institute of Estuarine and Coastal Research, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510275, China

  • 2.

    Estuarine Water Technology National and Regional United Engineering Laboratory, Guangzhou 510275, China

  • 3.

    School of Environmental Science and Engineering of Sun Yat-Sen University, Guangzhou 510275, China

  • 4.

    Guangdong Research Institute of Water Resources and Hydropower, Guangzhou 510630, China

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  • Received Date: September 30, 2016
  • Revised Date: January 11, 2017
    Graphical Abstract
    • Abstract

  • This paper determined the concentrations of 7 heavy metals including Cu, Zn, Mn, Ni, Pb, Cr and Cd in 76 sediment samples collected from Modaomen estuary, and analyzed the distribution characteristics, sources, effects of sedimentary environment and ecological risk of these elements. The results indicated that Cu、Mn、Ni、Pb and Cd in the study area came mainly from the Modaomen, and Zn、Cr had various sources. Characteristic of sediment grain size was the main factor that influenced the distribution of 5 elements including Cu、Mn、Ni、Pb and Cr. The potential ecological risk of the study area was generally serious, and the ecological risk of the surface sediments was mainly caused by Cd.

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