GYIG OpenIR  > 环境地球化学国家重点实验室
Cadmium stable isotope variation in a mountain area impacted by acid mine drainage
Wen-Jun Yang;  Keng-Bo Ding;  Peng Zhang;  Hao Qiu;  Christophe Cloquet;  Han-Jie Wen;  Jean-Louis Morel;  Rong-Liang Qiu;  Ye-Tao Tang
2019
发表期刊Science of the Total Environment
卷号646页码:696–703
摘要

The pollution of natural waters and sediments with metals derived from acid mine drainage (AMD) is a global environmental problem. However, the processes governing the transportation and transformation of AMD metals such as Cd in mountainous areas are poorly understood. In this study, the Cd isotopic composition and Cd concentration of river water and sediments (16 sampling sites) from an AMD-affected river in southern China were determined. Cd concentration in river water declined from its source at a tailings dam (304 mu g L-1) to a point 14 km downstream (0.32 mu g L-1). Sediment Cd concentration ranged from 0.18 to 39.9 mu g g(-1), suggesting that anthropogenic Cd is derived primarily from the tailing dam and easily enters the solid phase of the river. Isotopic data showed that the dissolved Cd in rivers was characterized by delta Cd-114/110 values ranging from 0.21% to 1.03%, with a mean of 0.48%. The greatest Cd isotope difference was observed between the water and sediments in the LW dam (Delta Cd-114/110(river-sediment) = 1.61 parts per thousand, site 1), likely due to a rapid weathering dissolution of the ore tailings. In the river's upper reach (sites 2-3), isotope difference between river and sediment (Delta Cd-114/110(river-sediment)) ranged from 1.0% to 0.91 parts per thousand. This suggests that a host of secondary processes might have impacted Cd isotope fractionation, including adsorption, ternary complexation and/or (co) precipitation of Cd on secondary oxides and hydroxides. In the middle and lower reaches, an abruptly elevated delta Cd-114/110 value near farmland (site 10) suggests the existence of a second Cd source. Based on the chemical properties of water samples we can attribute this heavy isotope signature to agricultural fertilizer and drainage from agricultural fields. Our results suggest that Cd isotope is a tracer for identifying and tracking Cd sources and attenuation mechanisms (adsorption/(co) precipitation) in a complex mountain watershed. 

关键词Cadmium Isotope rivers trace Metal source acid Mine Drainage
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/8877
专题环境地球化学国家重点实验室
作者单位1.School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, PR China
2.Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510275, PR China
3.School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
4.CRPG-CNRS, Université de Lorraine, 15 rue Notre-Dame-des-Pauvres BP 20, 54501 Vandoeuvre lès Nancy, France
5.State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China
6.Université de Lorraine, INRA, Laboratoire Sols et Environnement, BP 172, 2 avenue de la forêt de Haye, F-54505 Vandoeuvre-lès-Nancy Cédex, France
推荐引用方式
GB/T 7714
Wen-Jun Yang;Keng-Bo Ding;Peng Zhang;Hao Qiu;Christophe Cloquet;Han-Jie Wen;Jean-Louis Morel;Rong-Liang Qiu;Ye-Tao Tang. Cadmium stable isotope variation in a mountain area impacted by acid mine drainage[J]. Science of the Total Environment,2019,646:696–703.
APA Wen-Jun Yang;Keng-Bo Ding;Peng Zhang;Hao Qiu;Christophe Cloquet;Han-Jie Wen;Jean-Louis Morel;Rong-Liang Qiu;Ye-Tao Tang.(2019).Cadmium stable isotope variation in a mountain area impacted by acid mine drainage.Science of the Total Environment,646,696–703.
MLA Wen-Jun Yang;Keng-Bo Ding;Peng Zhang;Hao Qiu;Christophe Cloquet;Han-Jie Wen;Jean-Louis Morel;Rong-Liang Qiu;Ye-Tao Tang."Cadmium stable isotope variation in a mountain area impacted by acid mine drainage".Science of the Total Environment 646(2019):696–703.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Cadmium stable isoto(1547KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Wen-Jun Yang;Keng-Bo Ding;Peng Zhang;Hao Qiu;Christophe Cloquet;Han-Jie Wen;Jean-Louis Morel;Rong-Liang Qiu;Ye-Tao Tang]的文章
百度学术
百度学术中相似的文章
[Wen-Jun Yang;Keng-Bo Ding;Peng Zhang;Hao Qiu;Christophe Cloquet;Han-Jie Wen;Jean-Louis Morel;Rong-Liang Qiu;Ye-Tao Tang]的文章
必应学术
必应学术中相似的文章
[Wen-Jun Yang;Keng-Bo Ding;Peng Zhang;Hao Qiu;Christophe Cloquet;Han-Jie Wen;Jean-Louis Morel;Rong-Liang Qiu;Ye-Tao Tang]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Cadmium stable isotope variation in a mountain area impacted by acid mine drainage.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。