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Groundwater arsenic chemistry and redox process comparison in three physiographic settings of deltaic West Bengal, India
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering.
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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, 54-56 p.Conference paper, Published paper (Refereed)
Abstract [en]

A comparative hydrogeochemical study was carried out in West Bengal covering three physiographic settings of deltaic floodplains to demonstrate the control of geogenic and anthropogenic influences on groundwater arsenic (As) mobilization. The low redox potential (Eh = -185 to -86 mV) and the presence of low sulfate (SO 4 2-) and high Dissolved Organic Carbon (DOC), phosphate (PO 4 3-) and bicarbonate) (HCO 3 -) concentrations in groundwater signifies microbially mediated redox processes controlling As release in the aquifer. The release of As is influenced by both geogenic (i.e. geomorphology and/or landform features) and anthropogenic (i.e. unsewered sanitation and domestic wastes) factors.

Place, publisher, year, edition, pages
2012. 54-56 p.
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-101369Scopus ID: 2-s2.0-84864878149ISBN: 978-041563763-3 (print)OAI: oai:DiVA.org:kth-101369DiVA: diva2:547425
Conference
4th International Congress on Arsenic in the Environment, As 2012;Cairns, QLD; 22 July 2012 through 27 July 2012
Note

QC 20120828

Available from: 2012-08-28 Created: 2012-08-27 Last updated: 2012-08-28Bibliographically approved

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