globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2017.11.041
Scopus记录号: 2-s2.0-85035357280
论文题名:
Seasonal assessment of trace element contamination in intertidal sediments of the meso-macrotidal Hooghly (Ganges) River Estuary with a note on mercury speciation
作者: Mondal P.; de Alcântara Mendes R.; Jonathan M.P.; Biswas J.K.; Murugan K.; Sarkar S.K.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 127
起始页码: 117
结束页码: 130
语种: 英语
英文关键词: Hooghly River Estuary ; Methyl mercury ; Sediment pollution ; Trace elements
Scopus关键词: Estuaries ; Manganese ; Marine pollution ; Mercury (metal) ; Pollution ; Rivers ; Sediments ; Surficial sediments ; Trace elements ; Anthropogenic sources ; Geo-accumulation index ; Homogeneous concentration ; Intertidal sediments ; Mercury speciations ; Methyl mercury ; Seasonal distributions ; Sediment pollution ; River pollution ; cadmium ; chromium ; copper ; iron ; manganese ; mercury ; methylmercury ; nickel ; trace element ; concentration (composition) ; estuary ; intertidal environment ; methylmercury ; sediment pollution ; spatial distribution ; speciation (chemistry) ; surficial sediment ; trace element ; Article ; bioaccumulation ; concentration (parameters) ; controlled study ; ecology ; environmental factor ; environmental impact assessment ; estuary ; geochemistry ; India ; seasonal variation ; sediment ; water analysis ; water contamination ; Hooghly Estuary ; India ; West Bengal
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science ; Earth and Planetary Sciences: Oceanography ; Environmental Science: Pollution
英文摘要: The spatial and seasonal distribution of trace elements (TEs) (n = 16) in surficial sediment were examined along the Hooghly River Estuary (~ 175 km), India. A synchronous elevation of majority of TEs concentration (mg kg− 1) was encountered during monsoon with the following descending order: Al (67070); Fe (31300); Cd (5.73); Cr (71.17); Cu (29.09); Mn (658.74); Ni (35.89). An overall low and homogeneous concentration of total Hg (THg = 17.85 ± 4.98 ng g− 1) was recorded in which methyl mercury (MeHg) shared minor fraction (8–31%) of the THg. Sediment pollution indices, viz. geo-accumulation index (Igeo) and enrichment factor (EF) for Cd (Igeo = 1.92–3.67; EF = 13.83–31.17) and Ba (Igeo = 0.79–5.03; EF = 5.79–108.94) suggested high contamination from anthropogenic sources. From factor analysis it was inferred that TEs primarily originated from lithogenic sources. This study would provide the latest benchmark of TE pollution along with the first record of MeHg in this fluvial system which recommends reliable monitoring to safeguard geochemical health of this stressed environment. © 2017 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88479
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: Department of Marine Science, University of Calcutta, 35 Ballygunge Circular Road, Calcutta, India; Instituto Evandro Chagas, Seçao de Meio Ambiente, Laboratőrio de Toxicologia, Ananindeua, PA, Brazil; Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticoman, Del. Gustavo A. Madero, Ciudad de México, Mexico; Department of Ecological Studies, International Centre for Ecological Engineering, University of Kalyani, Nadia, India; Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu, India

Recommended Citation:
Mondal P.,de Alcântara Mendes R.,Jonathan M.P.,et al. Seasonal assessment of trace element contamination in intertidal sediments of the meso-macrotidal Hooghly (Ganges) River Estuary with a note on mercury speciation[J]. Marine Pollution Bulletin,2018-01-01,127
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