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Historical records, distributions and sources of mercury and zinc in sediments of East China sea: Implication from stable isotopic compositions

文献类型：期刊论文

作者Zhang, Rui7,8,9; Russell, James7; Xiao, Xin6; Zhang, Fan6; Li, Tiegang3,4,5; Liu, Zhiyong2; Guan, Minglei9; Han, Qi1; Shen, Liya9; Shu, Yujie9
刊名CHEMOSPHERE
出版日期2018-08-01
卷号205页码:698-708
关键词Mercury Zinc Isotopic tracer Source identification East China sea Anthropogenic inputs
ISSN号0045-6535
DOI10.1016/j.chemosphere.2018.04.100
通讯作者Zhang, Rui(rzhang_838@163.com) ; Zhang, Fan(njuzfan@163.com) ; Li, Tiegang(tgli@fio.org.ca)
英文摘要The distribution and source of mercury (Hg) and zinc (Zn) in surface sediments from East China Sea (ECS) were studied using stable isotopes. Hg concentrations in surface sediments varied from 12.6 to 133.2 ng g(-1). Zn concentrations ranged between 45.9 and 133.6 ng g(-1). Hydrodynamic circulation and sedimentary process within the ECS were the dominant factors controlling the distribution and fate of heavy metals, referring from relationships of Hg and Zn concentrations and total organic carbon (TOC) and clay contents. Spatial variations in Hg isotopic compositions (delta Hg-202) were observed in the ECS, with delta Hg-202 ranging from -1.86 to -0.83 parts per thousand and Delta Hg-199 ranging from -0.07 to +0.26 parts per thousand. The high delta Hg-202 values and relatively negative Delta Hg-199 values in estuarine and inner shelf sites indicated that the riverine inputs from Yangtze River played an important role in delivering Hg to ECS. In contrast, Hg isotopic signatures in outer shelf sediments had relatively low delta Hg-202 and positive Delta Hg-199, implying that atmospheric Hg deposition could be relatively dominant source for Hg. Moreover, application of zinc isotopes to trace anthropogenic sources has been tested, with delta Zn-66 ranging from 0.20 to 0.67 parts per thousand. The results showed significant variations of delta Zn-66 in the ECS, implying that Zn isotope compositions can be tracers of anthropogenic sources. Using these Hg isotope compositions, the source attributions of sediments in ECS were estimated based on a mixing model, suggesting that river-dominated inputs, discharging pollutants from industrial sources, and atmospheric deposition could dominate in the occurrence and fate of Hg in sediments of ECS. (C) 2018 Elsevier Ltd. All rights reserved.
资助项目National Natural Science Foundation of China[41406055] ; National Natural Science Foundation of China[41230959] ; National Natural Science Foundation of China[41476043] ; National Natural Science Foundation of China[41506106] ; Strategic Priority Research Program of the Chinese Academy of Sciences (A)[XDA11030104] ; Response of marine biotic community structure toclimate change, National Program on Global Change and Air Sea Interaction[GASI-GEOGE-06-02] ; Response of marine biotic community structure toclimate change, National Program on Global Change and Air Sea Interaction[GASI-GEOGE-04] ; International Postdoctoral Exchange Fellowship Program[20160073] ; Natural Science Foundation of Jiangsu Province[BK20170451] ; Natural Science Foundation of Jiangsu Province[BE2016701] ; Natural Science Foundation of Jiangsu Province[BK20171262] ; Six Talent Peaks Project in Jiangsu Province[JNHB-143] ; Natural Science Foundation of Lianyungang City[SH1506] ; Natural Science Foundation of Lianyungang City[CN1510] ; Natural Science Foundation of Jiangsu Provincial Department of Education[15KJD150007]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000439640900079
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://ir.qdio.ac.cn/handle/337002/163474]  
专题海洋研究所_海洋地质与环境重点实验室
通讯作者Zhang, Rui; Zhang, Fan; Li, Tiegang
作者单位1.China Univ Geosci, Sch Ocean Sci, Beijing 100083, Peoples R China
2.Soochow Univ, Coll Med, Sch Radiat Med & Protect, Suzhou 100083, Jiangsu, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
5.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Shandong, Peoples R China
6.Huaihai Inst Technol, Dept Chem Engn, Lianyungang 222005, Jiangsu, Peoples R China
7.Brown Univ, Dept Earth Environm & Planetary Sci, Providence, RI 02912 USA
8.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
9.Huaihai Inst Technol, Sch Geodesy & Geomat Engn, Lianyungang 222005, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Rui,Russell, James,Xiao, Xin,et al. Historical records, distributions and sources of mercury and zinc in sediments of East China sea: Implication from stable isotopic compositions[J]. CHEMOSPHERE,2018,205:698-708.
APA Zhang, Rui.,Russell, James.,Xiao, Xin.,Zhang, Fan.,Li, Tiegang.,...&Shu, Yujie.(2018).Historical records, distributions and sources of mercury and zinc in sediments of East China sea: Implication from stable isotopic compositions.CHEMOSPHERE,205,698-708.
MLA Zhang, Rui,et al."Historical records, distributions and sources of mercury and zinc in sediments of East China sea: Implication from stable isotopic compositions".CHEMOSPHERE 205(2018):698-708.

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来源：海洋研究所

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