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Potentiality of shallow brown sand aquifers as an alternative safe drinking water source in Bengal Basin
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering. (KTH-International Groundwater Arsenic Research Group)
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering. (KTH-International Groundwater Arsenic Research Group)ORCID iD: 0000-0003-4350-9950
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering. (KTH-International Groundwater Arsenic Research Group)
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering. (KTH-International Groundwater Arsenic Research Group)
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2012 (English)In: Understanding the Geological and Medical Interface of Arsenic, As 2012 - 4th International Congress: Arsenic in the Environment, 2012, 67-68 p.Conference paper, Published paper (Refereed)
Abstract [en]

The present study investigated the regional distribution of brown sand aquifers (BSA) as well as their hydrogeochemical contrast to grey sand aquifers (GSA). The data indicated that in BSA redox status is limited to the Mn oxides reduction stage, while in GSA, Fe oxides reduction to SO 4 2- reduction processes are prevalent. Though, the concentration of dissolved As was very low (<10 ÎŒg/L) in BSA, the concentration of Mn was very high (>400 ÎŒg/L). Whereas in GSA, the enrichment patterns of As and Mn were opposite to that of BSA. This study suggests that underlying health risk of Mn in drinking water needs to be addressed more rigorously before advocating for mass scale exploitation of BSA as an alternative drinking water source despite of significantly low As concentration in groundwater.

Place, publisher, year, edition, pages
2012. 67-68 p.
National Category
Geosciences, Multidisciplinary
Identifiers
URN: urn:nbn:se:kth:diva-101360Scopus ID: 2-s2.0-84864867349ISBN: 978-041563763-3 (print)OAI: oai:DiVA.org:kth-101360DiVA: diva2:547239
Conference
4th International Congress on Arsenic in the Environment, As 2012; Cairns, QLD; 22 July 2012 through 27 July 2012
Note

QC 20120827

Available from: 2012-08-27 Created: 2012-08-27 Last updated: 2012-08-27Bibliographically approved

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Bhattacharya, Prosun

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