Spatial characteristics of cadmium in topsoils in a typical e-waste recycling area in southeast China and its potential threat to shallow groundwater

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Spatial characteristics of cadmium in topsoils in a typical e-waste recycling area in southeast China and its potential threat to shallow groundwater
	Wu, Chunfa 1,2; Luo, Yongming2,3 ; Deng, Shaopo 2; Teng, Ying 2; Song, Jing 2
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2014-02-15
卷号	472 页码:556-561
关键词	E-waste Informal recycling Cadmium Soil acidification Topsoils Shallow groundwater
ISSN号	0048-9697
通讯作者	Wu, CF (reprint author), Nanjing Univ Informat Sci & Technol, Dept Agr Resources & Environm, 219 Ningliu Rd, Nanjing 210044, Jiangsu, Peoples R China. wchf1680@sina.com
产权排序	[Wu, Chunfa] Nanjing Univ Informat Sci & Technol, Dept Agr Resources & Environm, Nanjing 210044, Jiangsu, Peoples R China; [Wu, Chunfa; Luo, Yongming; Deng, Shaopo; Teng, Ying; Song, Jing] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China; [Luo, Yongming] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
中文摘要	Informal electrical and electronic waste (e-waste) recycling often creates secondary sources of cadmium (Cd) pollution. To characterize the total Cd concentration (Cd-total) in topsoil and evaluate the threat of Cd in topsoils to shallow groundwater, 187 topsoil samples and 12 shallow groundwater samples were collected in a typical e-waste recycling area in southeast China. Soil organic matter content, soil pH and Cd-total in topsoil, pH and dissolved Cd concentration in shallow groundwater were measured. Cd-total in the topsoils showed an inverse distribution trend with soil pH in that high Cd concentrations (and low pH values) were found in the surrounding area of the metal recycling industrial park where there were many family-operated e-waste recycling facilities before the industrial park was established and with low concentrations (and high pH values) in other areas, and they had similar spatial correlation structures. Cd accumulation and acidification were synchronous in topsoils, and soil pH was significantly correlated with Cd-total in topsoils with low to moderate negative correlation coefficient (r = -024), indicating that both of them maybe correlated with informal recycling. The shallow groundwater in the surrounding area of the metal recycling industrial park was seriously contaminated by Cd, and topsoil Cd accumulation and acidification in the surrounding area of e-waste recycling sites significantly increase the risk of shallow groundwater contaminated by Cd. Action is urgently required to control Cd accumulation and acidification by improving the recycling operations of e-wastes in order to reduce the risk of Cd leaching from topsoils and shallow groundwater contamination. (C) 2013 Published by Elsevier B.V.
英文摘要	Informal electrical and electronic waste (e-waste) recycling often creates secondary sources of cadmium (Cd) pollution. To characterize the total Cd concentration (Cd-total) in topsoil and evaluate the threat of Cd in topsoils to shallow groundwater, 187 topsoil samples and 12 shallow groundwater samples were collected in a typical e-waste recycling area in southeast China. Soil organic matter content, soil pH and Cd-total in topsoil, pH and dissolved Cd concentration in shallow groundwater were measured. Cd-total in the topsoils showed an inverse distribution trend with soil pH in that high Cd concentrations (and low pH values) were found in the surrounding area of the metal recycling industrial park where there were many family-operated e-waste recycling facilities before the industrial park was established and with low concentrations (and high pH values) in other areas, and they had similar spatial correlation structures. Cd accumulation and acidification were synchronous in topsoils, and soil pH was significantly correlated with Cd-total in topsoils with low to moderate negative correlation coefficient (r = -024), indicating that both of them maybe correlated with informal recycling. The shallow groundwater in the surrounding area of the metal recycling industrial park was seriously contaminated by Cd, and topsoil Cd accumulation and acidification in the surrounding area of e-waste recycling sites significantly increase the risk of shallow groundwater contaminated by Cd. Action is urgently required to control Cd accumulation and acidification by improving the recycling operations of e-wastes in order to reduce the risk of Cd leaching from topsoils and shallow groundwater contamination. (C) 2013 Published by Elsevier B.V.
学科主题	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	ELECTRONIC WASTE ; HEAVY-METALS ; TAIZHOU AREA ; SOIL ; CONTAMINATION ; PREDICTION ; SITES ; GUIYU ; ZINC ; ZN
收录类别	SCI
资助信息	Chinese Academy of Sciences; National Natural Science Foundation of China [41001315]; Key Laboratory of Soil Environment and Pollution Remediation
原文出处	http://dx.doi.org/10.1016/j.scitotenv.2013.11.084
语种	英语
WOS记录号	WOS:000331916100063
公开日期	2014-07-08
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/6904]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.Nanjing Univ Informat Sci & Technol, Dept Agr Resources & Environm, Nanjing 210044, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Wu, Chunfa,Luo, Yongming,Deng, Shaopo,et al. Spatial characteristics of cadmium in topsoils in a typical e-waste recycling area in southeast China and its potential threat to shallow groundwater[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2014,472:556-561.
APA	Wu, Chunfa,Luo, Yongming,Deng, Shaopo,Teng, Ying,&Song, Jing.(2014).Spatial characteristics of cadmium in topsoils in a typical e-waste recycling area in southeast China and its potential threat to shallow groundwater.SCIENCE OF THE TOTAL ENVIRONMENT,472,556-561.
MLA	Wu, Chunfa,et al."Spatial characteristics of cadmium in topsoils in a typical e-waste recycling area in southeast China and its potential threat to shallow groundwater".SCIENCE OF THE TOTAL ENVIRONMENT 472(2014):556-561.