干旱区生态环境知识资源中心(Arid): Pollution and potential risk assessment of flood sediments in the urban area of the mining Copiapo basin (Atacama Desert)

Arid

DOI	10.1016/j.jsames.2020.102714
	Pollution and potential risk assessment of flood sediments in the urban area of the mining Copiapo basin (Atacama Desert)
	Izquierdo, Tatiana; Bonnail, Estefania; Abad, Manuel; Dias, Maria Isabel; Prudencio, Maria Isabel; Marques, Rosa; Rodriguez-Vidal, Joaquin; Ruiz, Francisco
通讯作者	Izquierdo, T
来源期刊	JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
ISSN	0895-9811
出版年	2020
卷号	103
英文摘要	In 2015 an extraordinary hydrometeorological event occurred in the southern Atacama Desert (northern Chile) that resulted in a catastrophic flood in the city of Copiapo. A large volume of detrital sediments was transported downstream, provoking an economic and environmental disaster in the Copiapo Valley, a region dominated by mining activity. Loads of sediment and residues were moved by the flow and deposited throughout the urban area of Copiapo. The current study explores the geochemical features and associated pollution risks of metal(loid)s in sediments collected in different points of the city after the flood event. Results revealed that, despite the high natural concentration of elements due to geogenic chemical composition of the area, geoaccumulation of Al, As, Cd, Co, Cu, Hg, Fe, Mn, Ni and Pb showed moderate contamination when compared to the background concentrations of the area. Furthermore, Hg, originating from legacy mining practices, constituted the main environmental risk associated with the flood sediments. Finally, data from this study were compared to other flood events and mining spills; some contaminants in the 2015 flood sediments in Copiapo were higher than some historical mining disasters. This work highlights the potential intersection between anthropogenic activities (mining) and extreme hydrometeorological events (floods) in arid environmental degraded areas.
英文关键词	Flood event Geochemical indices Sediment metal contamination Old mine tailing Copiapo Southern atacama Desert
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000572375100005
WOS关键词	HEAVY-METALS ; GUADALQUIVIR ESTUARY ; CONTAMINATION ; SPILL
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326474
作者单位	[Izquierdo, Tatiana] Univ Atacama IDICTEC UDA, Inst Invest Cient & Tecnol, Ave Copayapu 485, Copiapo, Chile; [Bonnail, Estefania] Univ Atacama CIC UDA, Ctr Invest Costeras, Ave Copayapu 485, Copiapo, Chile; [Abad, Manuel] Univ Rey Juan Carlos, Dept Biol & Geol Fis & Quim Inorgan, ESCET, C Tulipan S-N, Mostoles 28933, Spain; [Dias, Maria Isabel; Prudencio, Maria Isabel; Marques, Rosa] Univ Lisbon, Ctr Nucl Sci & Technol C2TN, Dept Nucl Sci & Engn DECN, EN 10 Km 139-7, P-2695066 Bobadela, Portugal; [Rodriguez-Vidal, Joaquin; Ruiz, Francisco] Univ Huelva, Dept Ciencias Tierra, Ave 3 Marzo S-N, Huelva 21007, Spain
推荐引用方式 GB/T 7714	Izquierdo, Tatiana,Bonnail, Estefania,Abad, Manuel,et al. Pollution and potential risk assessment of flood sediments in the urban area of the mining Copiapo basin (Atacama Desert)[J],2020,103.
APA	Izquierdo, Tatiana.,Bonnail, Estefania.,Abad, Manuel.,Dias, Maria Isabel.,Prudencio, Maria Isabel.,...&Ruiz, Francisco.(2020).Pollution and potential risk assessment of flood sediments in the urban area of the mining Copiapo basin (Atacama Desert).JOURNAL OF SOUTH AMERICAN EARTH SCIENCES,103.
MLA	Izquierdo, Tatiana,et al."Pollution and potential risk assessment of flood sediments in the urban area of the mining Copiapo basin (Atacama Desert)".JOURNAL OF SOUTH AMERICAN EARTH SCIENCES 103(2020).