DOI: 10.1016/j.marpolbul.2017.05.039
Scopus记录号: 2-s2.0-85019388574
论文题名: Cr in dredged marine sediments: Anthropogenic enrichment, bioavailability and potential adverse effects
作者: Baraud F. ; Leleyter L. ; Lemoine M. ; Hamdoun H.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 120, 期: 2018-01-02 起始页码: 303
结束页码: 308
语种: 英语
英文关键词: AEI
; Chromium
; Dredged sediment
; EF
; Sequential extraction
Scopus关键词: Biochemistry
; Chromium
; Extraction
; Positive ions
; Sediments
; Submarine geology
; Aquatic environments
; Biological effects
; Dredged sediments
; Enrichment factors
; Marine sediments
; Residual fraction
; Sequential extraction
; Sequential extraction procedure
; Dredging
; chromium
; chromium
; heavy metal
; anthropogenic source
; bioavailability
; chromium
; dredging
; enrichment
; environmental effect
; marine sediment
; mineral exploration
; sequential extraction
; adverse outcome
; aquatic environment
; Article
; bioavailability
; biological activity
; concentration (parameters)
; dredging
; environmental enrichment
; environmental monitoring
; fractionation
; France
; geochemical analysis
; marine environment
; metal extraction
; mineralogy
; oxidation
; sediment
; toxicity testing
; United Kingdom
; water analysis
; water contamination
; water transport
; analysis
; bioavailability
; England
; water pollutant
; English Channel
; Biological Availability
; Chromium
; England
; Environmental Monitoring
; Geologic Sediments
; Metals, Heavy
; 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: This study focuses on chromium detected in 13 harbor sediments dredged across the English Channel. The total concentrations of Cr range from 5 to 61 mg kg− 1, which reveal no or low enrichment for 12 of the 13 samples, according the enrichment factor (EF) calculations. Sequential extraction procedure was applied to determine the mineralogical speciation of Cr, in order to assess its potential (re)mobilization to the aquatic environment. Cr is mainly associated to the residual fraction, then distributed in the oxydizable and reducible fractions. The possible relationships between the enrichment, mobility and possible biological effects (according calculation of Adverse Effect Index (AEI)) suggests possible toxicity incidence even for moderate enrichment. A link is observed with the oxydizable fraction (r = 0.8 and r = 0.5 respectively for EF and AEI). © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88193
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: Unité de Recherche ‘Aliments Bioprocédés Toxicologie Environnements’ (UR ABTE) - EA 4651, Université de Caen Normandie, Boulevard du Maréchal Juin, Caen Cedex, France
Recommended Citation:
Baraud F.,Leleyter L.,Lemoine M.,et al. Cr in dredged marine sediments: Anthropogenic enrichment, bioavailability and potential adverse effects[J]. Marine Pollution Bulletin,2017-01-01,120(2018-01-02)