Vertical geochemical variations and arsenic mobilization in the shallow alluvial aquifers of the Chapai-Nawabganj District, northwestern Bangladesh: implication of siderite precipitation
Article
Article Title | Vertical geochemical variations and arsenic mobilization in the shallow alluvial aquifers of the Chapai-Nawabganj District, northwestern Bangladesh: implication of siderite precipitation |
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ERA Journal ID | 200438 |
Article Category | Article |
Authors | Reza, A. H. M. Selim (Author), Jean, Jiin-Shuh (Author), Bundschuh, Jochen (Author), Liu, Chia-Chuan (Author), Yang, Huai-Jen (Author) and Lee, Chi-Yu (Author) |
Editors | Dorhofer, G and LaMoreaux, J.W. |
Journal Title | Environmental Earth Sciences |
Journal Citation | 68 (5), pp. 1255-1270 |
Number of Pages | 16 |
Year | 2013 |
Publisher | Springer |
Place of Publication | Germany |
ISSN | 1866-6280 |
1866-6299 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s12665-012-1825-6 |
Web Address (URL) | https://link.springer.com/article/10.1007/s12665-012-1825-6 |
Abstract | Core sediments from three disturbed boreholes JOR, GHAT, and RAJ) and two undisturbed boreholes (DW1 and DW2) were collected in the study area of the Chapai-Nawabganj district of northwestern Bangladesh for geochemical analyses. In the study area, groundwater samples from fourteen As-contained private wells and five nested piezometers at both the DW1 and DW2 boreholes were also collected and analyzed. The groundwater arsenic concentrations in the uppermost aquifer (10–40 m of depth) range from 3 to 315 lg/L (mean 47.73 ± 73.41 lg/L), while the arsenic content in sediments range from 2 to 14 mg/kg (mean 4.36 ± 3.34 mg/kg). An environmental scanning electron microscope (ESEM) with an energy dispersive X-ray spectrometer was used to investigate the presence of major and trace elements in the sediments. Groundwaters in the study area are generally the Ca–HCO3 The comparatively low Fe and Mn concentrations in some |
Keywords | northwestern Bangladesh; arsenic mobilization; siderite precipitation; alluvial aquifers; geochemical variations |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 370302. Inorganic geochemistry |
370509. Sedimentology | |
400513. Water resources engineering | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | National Cheng Kung University, Taiwan |
Karlsruhe University of Applied Sciences, Germany | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q19w6/vertical-geochemical-variations-and-arsenic-mobilization-in-the-shallow-alluvial-aquifers-of-the-chapai-nawabganj-district-northwestern-bangladesh-implication-of-siderite-precipitation
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