Pollution characteristics and ecological risk of heavy metals in ballast tank sediment

被引：0
作者：
Daolun Feng
Xiaofei Chen
Wen Tian
Qun Qian
Hao Shen
Dexiang Liao
Baoyi Lv
机构：
[1] Shanghai Maritime University,College of Ocean Science and Engineering
[2] Jiangyin Entry-Exit Inspection and Quarantine Bureau,undefined
来源：
Environmental Science and Pollution Research | 2017年 / 24卷
关键词：
Ballast tank sediment; Heavy metal; Multivariate analysis; Risk assessment; Sediment management; Potential source;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This study was conducted to illustrate the contents and potential ecological risk of heavy metals in ballast tank sediment. Ballast sediment samples were collected from six ships during their stay in shipyard, and the heavy metals were determined by inductive coupled plasma emission spectrometer. Results showed that high concentrations of heavy metals were detected in all six sediment samples following the order: Zn > Cu > Pb > Cr > As > Cd > Hg. The geoaccumulation index explained the average pollution degree of heavy metals decreased as the following: Zn > Pb > Cu > As > Cr > Hg, and the environmental risk indices suggested that concentration found of Zn, Pb, and Cu might be highly toxic to aquatic organisms. Principal component and correlation analysis indicated the metal pollution in ballast tank sediment was affected by complex and different contamination mechanisms, and the corrosion of ballast tank played an important role in this process. In conclusion, this study is very useful for comprehensive consideration and efficient management of ballast tank sediment in order to protect the marine environment.
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页码：3951 / 3958
页数：7
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