DOI: 10.1016/j.marpolbul.2016.11.062
Scopus记录号: 2-s2.0-85008191053
论文题名: Spatial distribution, risk assessment and source identification of heavy metals in sediments of the Yangtze River Estuary, China
作者: Han D. ; Cheng J. ; Hu X. ; Jiang Z. ; Mo L. ; Xu H. ; Ma Y. ; Chen X. ; Wang H.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 115, 期: 2018-01-02 起始页码: 141
结束页码: 148
语种: 英语
英文关键词: Heavy metal
; Positive factor matrix (PMF)
; Sediment
; Source identification
; Yangtze River Estuary (YRE)
Scopus关键词: Estuaries
; Heavy metals
; Lead
; Meteorological problems
; Risk assessment
; Rivers
; Sediments
; Spatial distribution
; Atmospheric depositions
; Geo-accumulation index
; Heavy metal concentration
; Hydrodynamic conditions
; Positive factor matrix (PMF)
; Sediment quality guidelines
; Source identification
; Yangtze River estuary
; River pollution
; arsenic
; cadmium
; chromium
; heavy metal
; lead
; mercury
; zinc
; heavy metal
; water pollutant
; estuarine sediment
; heavy metal
; pollutant source
; risk assessment
; sediment pollution
; source identification
; spatial distribution
; Article
; atmospheric deposition
; China
; concentration (parameters)
; controlled study
; environmental impact
; estuary
; geographic distribution
; risk assessment
; sediment
; spatial analysis
; water analysis
; water pollution
; water quality
; analysis
; environmental monitoring
; risk assessment
; river
; sediment
; water pollutant
; China
; Yangtze Estuary
; China
; Environmental Monitoring
; Estuaries
; Geologic Sediments
; Metals, Heavy
; Risk Assessment
; Rivers
; Water Pollutants, Chemical
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: The aim of this study was to determine the spatial distribution, potential risks and sources of seven heavy metals in sediments of the Yangtze River Estuary. Analyses of 55 sediment samples revealed that the distributions of metals within the YRE were determined by the combined effects of their sources, hydrodynamic conditions, pH and Eh. According to the geoaccumulation index (Igeo) and sediment quality guidelines, Pb, Cd and Cr were present at low levels of pollution, with Cd posing the largest ecological risk. Positive Factor Matrix (PMF) results indicated that Hg, Zn, As, Pb and Cr mainly originated from natural geological background sources, while Cu originated from anthropogenic activities and atmospheric deposition was the source of Cd. These three sources contributed to 53.0%, 32.8% and 14.2%, respectively of total heavy metal concentrations. These results suggest that reducing the emission of Cd would promote a reduction of potential risks in sediments of the YRE. © 2016 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87811
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, China; Water (Ocean) Administrative Service Center, Shanghai Municipal Oceanic Bureau, Shanghai, China
Recommended Citation:
Han D.,Cheng J.,Hu X.,et al. Spatial distribution, risk assessment and source identification of heavy metals in sediments of the Yangtze River Estuary, China[J]. Marine Pollution Bulletin,2017-01-01,115(2018-01-02)