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Natural arsenic occurrence in drinking water and assessment of water quality in the southern part of the Poopó lake basin, Bolivian Altiplano
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering. Universidad Mayor de San Andrés, Bolivia . (KTH-International Groundwater Arsenic Research Group)
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2014 (English)In: One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment, 2014, 154-156 p.Conference paper (Refereed)
Abstract [en]

Drinking water quality and the presence of natural arsenic (As) were studied in a rural, less developed area of the southern part of the Poopó lake basin in the Central Bolivian Altiplano. People in this area use untreated surface- and ground-water directly as drinking water. Water is extracted from excavated wells and from few rivers occasionally present during the rainy season. Forty-one wells and seven different sites along four rivers were sampled as they are common sources for drinking water. The main characteristics of the sampled waters showed a slightly alkaline pH, high electrical conductivity and high salinity where the principal components were sodium, chloride and bicarbonate. Arsenic concentrations reached values up to 623 μg L -1 exceeding the current WHO guideline value (10 μg L -1) in all rivers and in ninety-five percent of the sampled wells. Heavy metals and other trace elements showed relatively low concentrations.

Place, publisher, year, edition, pages
2014. 154-156 p.
Keyword [en]
Alkalinity, Chlorine compounds, Heavy metals, Lakes, Rivers, Sodium bicarbonate, Water quality, Arsenic concentration, Assessment of water qualities, Bolivian Altiplano, Guideline values, High electrical conductivity, Low concentrations, Principal Components, Rainy seasons, Arsenic
National Category
Environmental Sciences
URN: urn:nbn:se:kth:diva-167598ScopusID: 2-s2.0-84907339997ISBN: 9781138001411OAI: diva2:815093
5th International Congress on Arsenic in the Environment, As 2014, 11 May 2014 through 16 May 2014, Buenos Aires

QC 20150529

Available from: 2015-05-29 Created: 2015-05-22 Last updated: 2015-05-29Bibliographically approved

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Ormachea Muñoz, MauricioBhattacharya, Prosun
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