DOI: 10.1016/j.marpolbul.2017.10.052
Scopus记录号: 2-s2.0-85032200119
论文题名: Behaviour of trace metals in the anoxic environment of Veraval harbour, India
作者: Majithiya D. ; Yadav A. ; Ram A.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 129, 期: 2 起始页码: 645
结束页码: 654
语种: 英语
英文关键词: Anoxic environment
; C/N ratio
; Diagenesis
; Trace metals
Scopus关键词: Carbon
; Manganese
; Manganese removal (water treatment)
; Metals
; Sediments
; Anoxic conditions
; Anoxic environment
; C/N ratio
; Diagenesis
; Harbour sediments
; Trace metal
; Upward movement
; Water columns
; Trace elements
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: The purpose of the present study is to investigate the behaviour of trace metals in anoxic environment. Water column of the harbour was found to be anoxic (DO < 0.2 mg l− 1) with high concentration of NH4 +-N (av. 459 ± 21 μmol l− 1) and H2S (av.73 ± 2.5 μmol l− 1) irrespective of season and tide. High concentrations of Fe, Mn in bottom water indicated that Fe, Mn were diagenetically mobilized under the anoxic conditions prevailing in the harbour. In harbour sediments significant correlation of metals with TOC and TS indicated their diagenetic immobilization in anoxic environment. Fe was positively correlated with TS suggesting FeS formation in anoxic condition. TOC/TN ratio of sediments was higher (16 ± 5.2) than the normal marine planktonic sediments suggesting an increased burden of terrestrial carbon in the harbour. A sediment core collected 10 km away from the shore indicated build-up of trace metals in recent years, showing diagenetically upward movement of metals. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88363
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: Regional Centre, CSIR-National Institute of Oceanography, Mumbai, India
Recommended Citation:
Majithiya D.,Yadav A.,Ram A.. Behaviour of trace metals in the anoxic environment of Veraval harbour, India[J]. Marine Pollution Bulletin,2018-01-01,129(2)