Cadmium isotopic fractionation in lead-zinc smelting process and signatures in fluvial sediments

doi:10.1016/j.jhazmat.2020.125015

	Cadmium isotopic fractionation in lead-zinc smelting process and signatures in fluvial sediments
	Zhong, Qiaohui 3,4; Yin, Meiling 4; Zhang, Qiong 1; Beiyuan, Jingzi 2; Liu, Juan 1,4; Yang, Xiao 5; Wang, Jin 4; Wang, Lulu 4; Jiang, Yanjun 4; Xiao, Tangfu 4
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2021-06-05
卷号	411 页码:9
关键词	Cd pollution Sediment Cd isotopes Source tracer Isotopic fractionation
ISSN号	0304-3894
DOI	10.1016/j.jhazmat.2020.125015
通讯作者	Liu, Juan(liujuan858585@163.com) ; Wang, Jin(wangjin@gzhu.edu.cn)
英文摘要	Cadmium (Cd) is a toxic heavy metal pollutant. Various industrial activities, especially metal smelting, are the main sources of Cd pollution. Cd isotopes have exhibited the ability to be excellent source tracers and can be used to assess the pollution contributions from different sources. Herein, in a typical lead-zinc smelter, Shaoguan, China, significant Cd isotopic fractionation was found during the high temperature smelting process and followed a Rayleigh distillation model. The heavier Cd isotopes were concentrated in the slag, while the lighter Cd isotopes were concentrated in the dust. In the downstream sediment profile of the smelter, sediments have extremely high Cd concentrations that far exceed the Chinese background sediment, indicating severe pollution levels. The epsilon Cd-114/110 of the sediment core, ranged from 0.62 +/- 0.5-1.73 +/- 0.5, are found between slag epsilon Cd-114/110 = 10.42) and dust (epsilon Cd-114/110 = - 5.68). The binary mixture model suggests that 88-93% of the Cd in sediment profile was derived from the slag, and 7-12% from the deposition of dust. The findings demonstrate the great potential to apply Cd isotopes as a new geochemical tool to distinguish anthropogenic sources and quantify the contribution from various sources in the environment.
资助项目	National Key Research & Development Program of China[2017YFD0800302] ; National Natural Science Foundation of China[41873015] ; National Natural Science Foundation of China[41773011] ; Guangdong Provincial Natural Science Foundation ; Guangzhou University ; Scientific Research Projects in Colleges and Universities of Guangzhou Education Bureau, Guangzhou, China[201831803]
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000638081600004
资助机构	National Key Research & Development Program of China ; National Natural Science Foundation of China ; Guangdong Provincial Natural Science Foundation ; Guangzhou University ; Scientific Research Projects in Colleges and Universities of Guangzhou Education Bureau, Guangzhou, China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/161776]
专题	中国科学院地理科学与资源研究所
通讯作者	Liu, Juan; Wang, Jin
作者单位	1.Univ Oxford, Dept Earth Sci, Oxford, England 2.Foshan Univ, Sch Environm & Chem Engn, Foshan, Guangdong, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510405, Peoples R China 4.Guangzhou Univ, Sch Environm Sci & Engn, Key Lab Water Qual & Conservat Pearl River Delta, Minist Educ, Guangzhou 510006, Peoples R China 5.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Zhong, Qiaohui,Yin, Meiling,Zhang, Qiong,et al. Cadmium isotopic fractionation in lead-zinc smelting process and signatures in fluvial sediments[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,411:9.
APA	Zhong, Qiaohui.,Yin, Meiling.,Zhang, Qiong.,Beiyuan, Jingzi.,Liu, Juan.,...&Zhang, Zhaofeng.(2021).Cadmium isotopic fractionation in lead-zinc smelting process and signatures in fluvial sediments.JOURNAL OF HAZARDOUS MATERIALS,411,9.
MLA	Zhong, Qiaohui,et al."Cadmium isotopic fractionation in lead-zinc smelting process and signatures in fluvial sediments".JOURNAL OF HAZARDOUS MATERIALS 411(2021):9.