Solute chemistry and groundwater arsenic enrichment in southern part of Brahmaputra River Basin, India, adjacent to Indo-Burmese rangesVisa övriga samt affilieringar
2016 (Engelska)Ingår i: Arsenic Research and Global Sustainability - Proceedings of the 6th International Congress on Arsenic in the Environment, AS 2016, CRC Press/Balkema , 2016, s. 62-63Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]
The present study examines the groundwater chemistry, hydrogeochemical evolution and Arsenic (As) enrichment in shallow aquifers in the southern Brahmaputra river basin situated close to Naga-thrust belt. The major-ion composition dominated by a Na‒Ca‒HCO3 and Ca‒Na‒HCO3 hydro-chemical facies. Groundwater composition influenced by silicates weathering in S-region of Brahmaputra basin aquifers. The aquifers of S-region are severely contaminated with As (max 0.45 mg/L), nearly 92% collected groundwater sample are enriched with As. As show poor and negative correlation with various redox—sensitive solutes. It suggests that not a single process is controlling factor, although multiple biogeochemical mechanisms might influence As liberation and fate in groundwater of S-region. The geologic explanation for high arsenic in the southern region of Brahmaputra basin (upper Assam) is probably the crustal recycling of arsenic as an incompatible element during tectonic activity.
Ort, förlag, år, upplaga, sidor
CRC Press/Balkema , 2016. s. 62-63
Nyckelord [en]
Aquifers, Arsenic, Calcium, Groundwater, Groundwater pollution, Groundwater resources, Hydrogeology, Silicates, Sustainable development, Watersheds, Arsenic enrichments, Controlling factors, Crustal recycling, Groundwater chemistry, Groundwater composition, Hydrogeochemical evolution, Incompatible element, Negative correlation, Hydrochemistry
Nationell ämneskategori
Geovetenskap och miljövetenskap
Identifikatorer
URN: urn:nbn:se:kth:diva-207546DOI: 10.1201/b20466-30Scopus ID: 2-s2.0-85016946534ISBN: 9781138029415 (tryckt)OAI: oai:DiVA.org:kth-207546DiVA, id: diva2:1103791
Konferens
6th International Congress on Arsenic in the Environment, AS 2016, 19 June 2016 through 23 June 2016
Anmärkning
Conference code: 175559; Export Date: 22 May 2017; Conference Paper; Funding details: CSIR, Council of Scientific and Industrial Research; Funding text: SV acknowledges CSIR (Government of India) for providing CSIR-SR Fellowship. The author acknowledges support of IIT Kharagpur for providing laboratory analyses facilities. QC 20170531
2017-05-312017-05-312022-06-27Bibliografiskt granskad