Impact of total organic carbon (in sediments) and dissolved organic carbon (in overlying water column) on Hg sequestration by coastal sediments from the central east coast of India

被引：55

作者：

Chakraborty, Parthasarathi ^{[1
]}

Sharma, Brijmohan ^{[1
,2
]}

Babu, P. V. Raghunath ^{[1
]}

Marcellin Yao, Koffi ^{[1
,3
]}

Jaychandran, Saranya ^{[1
,4
]}

机构：

[1] Natl Inst Oceanog, Geol Oceanog Div, Panaji 403004, Goa, India

[2] TERI Univ, New Delhi, India

[3] Ctr Rech Oceanol, Abidjan, Cote Ivoire

[4] Cochin Univ Sci & Technol, Cochin 682022, Kerala, India

来源：

MARINE POLLUTION BULLETIN | 2014年 / 79卷 / 1-2期

关键词：

Hg-sediment interaction; Hg speciation; Hg-TOC complexes; Humic acid-Hg complexes; CHEMICAL CONCENTRATIONS; METHYL MERCURY; SPECIATION; ESTUARINE; MARINE; RIVER; NI; METALS; CO; CU;

D O I：

10.1016/j.marpolbul.2013.11.028

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Total organic carbon (TOC) (in sediment) and dissolved organic matter (DOM) (in water column) play important roles in controlling the mercury sequestration process by the sediments from the central east coast of India. This toxic metal prefers to associate with finer size particles (silt and clay) of sediments. Increasing concentrations of DOM in overlying water column may increase complexation/reduction processes of Hg2+ within the water column and decrease the process of Hg sequestration by sediments. However, high concentrations of DOM in water column may increase Hg sequestration process by sediments. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：342 / 347

页数：6

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