Arid
DOI10.1016/j.jhydrol.2014.08.019
Geochemical processes controlling mobilization of arsenic and trace elements in shallow aquifers and surface waters in the Antequera and Poopo mining regions, Bolivian Altiplano
Ramos, Oswaldo Eduardo Ramos1,2; Rotting, Tobias S.3,4; French, Megan5; Sracek, Ondra6; Bundschuh, Jochen7,8; Quintanilla, Jorge1; Bhattacharya, Prosun2
通讯作者Ramos, Oswaldo Eduardo Ramos
来源期刊JOURNAL OF HYDROLOGY
ISSN0022-1694
EISSN1879-2707
出版年2014
卷号518页码:421-433
英文摘要

A geochemical approach was applied to understand the factors controlling the mobilization of As and trace elements (TEs) in mining areas of the Poopo and Antequera River sub-basins on the Bolivian Altiplano. A total of 52 samples (surface, groundwater and geothermal water) were collected during the rainy season (2009). Arsenic, Cd and Mn concentrations exceed World Health Organization (WHO) drinking water guidelines and Bolivian regulations for drinking water in 28 groundwater samples, but Cu, Ni, Pb and Zn do not. Arsenic, Cd, Mn, Pb and Zn concentrations exceed World Health Organization guidelines for drinking water and Bolivian regulations Class A standard for discharge to water bodies in 20 surface water samples, whereas levels of Cu do not, and Ni and Fe rarely exceed regulation and guideline values. Factor analysis was applied to 18 hydrochemical parameters of 52 samples. Five factors for groundwater (plagioclase weathering, dissolution of gypsum and halite. TEs mobilization at acidic pH, sulfide oxidation, and release of As) account for 86.5% of the total variance for Antequera and 83.9% for Poopo sub-basins. Four factors for surface water data (weathering and mobilization of TEs influenced by pH, dissolution of evaporate salts, neutralization of acid mine drainage, and As release due to dissolution of Mn and Fe oxides) account for 91% of the total variance in Antequera and 96% in Poopo sub-basins. The As and TEs mobilized in these regions could affect the local water sources, which is a prevalent concern with respect to water resource management in this semi-arid Altiplano region. Presence of both natural and anthropogenic sources of contamination requires careful monitoring of water quality. (C) 2014 Elsevier B.V. All rights reserved.


英文关键词Arsenic Bolivian Altiplano Groundwater Poopo basin Surface water Trace elements
类型Article
语种英语
国家Bolivia ; Sweden ; England ; Spain ; Czech Republic ; Australia
收录类别SCI-E
WOS记录号WOS:000345061200012
WOS关键词GROUNDWATER ; SEDIMENTS ; SALINITY ; BEHAVIOR ; COIPASA ; OXIDES ; SALARS ; UYUNI ; MINE ; PH
WOS类目Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向Engineering ; Geology ; Water Resources
来源机构University of London
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/183452
作者单位1.Univ Mayor San Andres, IIQ, La Paz 303, Bolivia;
2.KTH Royal Inst Technol, Dept Sustainable Dev Environm Sci & Engn, KTH Int Groundwater Arsen Res Grp, SE-10044 Stockholm, Sweden;
3.Newcastle Univ, Sch Civil Engn & Geosci, Hydrogeochem Engn & Outreach HERO Grp, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England;
4.Tech Univ Catalonia UPC Barcelona Tech, Dept Geotech Engn & Geosci, Barcelona 08034, Spain;
5.UCL, Inst Risk & Disaster Reduct, London WC1E 6BT, England;
6.Palacky Univ, Fac Sci, Dept Geol, Olomouc 77146, Czech Republic;
7.Univ So Queensland, Fac Engn & Surveying, Toowoomba, Qld 4350, Australia;
8.Univ So Queensland, NCEA, Toowoomba, Qld 4350, Australia
推荐引用方式
GB/T 7714
Ramos, Oswaldo Eduardo Ramos,Rotting, Tobias S.,French, Megan,et al. Geochemical processes controlling mobilization of arsenic and trace elements in shallow aquifers and surface waters in the Antequera and Poopo mining regions, Bolivian Altiplano[J]. University of London,2014,518:421-433.
APA Ramos, Oswaldo Eduardo Ramos.,Rotting, Tobias S..,French, Megan.,Sracek, Ondra.,Bundschuh, Jochen.,...&Bhattacharya, Prosun.(2014).Geochemical processes controlling mobilization of arsenic and trace elements in shallow aquifers and surface waters in the Antequera and Poopo mining regions, Bolivian Altiplano.JOURNAL OF HYDROLOGY,518,421-433.
MLA Ramos, Oswaldo Eduardo Ramos,et al."Geochemical processes controlling mobilization of arsenic and trace elements in shallow aquifers and surface waters in the Antequera and Poopo mining regions, Bolivian Altiplano".JOURNAL OF HYDROLOGY 518(2014):421-433.
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