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Solute chemistry an...
Solute chemistry and groundwater arsenic enrichment in southern part of Brahmaputra River Basin, India, adjacent to Indo-Burmese ranges
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Verma, S. (författare)
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Mukherjee, A. (författare)
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Mahanta, C. (författare)
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Choudhury, R. (författare)
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- Bhattacharya, Prosun, 1962- (författare)
- KTH,Hållbar utveckling, miljövetenskap och teknik
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(creator_code:org_t)
- 2016-06-09
- 2016
- Engelska.
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Ingår i: Arsenic Research and Global Sustainability - Proceedings of the 6th International Congress on Arsenic in the Environment, AS 2016. - : CRC Press/Balkema. - 9781138029415 ; , s. 62-63
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- 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
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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