Groundwater arsenic chemistry and redox process comparison in three physiographic settings of deltaic West Bengal, India
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 (Refereed)
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.
Earth and Related Environmental Sciences
IdentifiersURN: urn:nbn:se:kth:diva-101369ScopusID: 2-s2.0-84864878149ISBN: 978-041563763-3OAI: oai:DiVA.org:kth-101369DiVA: diva2:547425
4th International Congress on Arsenic in the Environment, As 2012;Cairns, QLD; 22 July 2012 through 27 July 2012
QC 201208282012-08-282012-08-272012-08-28Bibliographically approved