Interrelationship of TOC, As, Fe, Mn, Al and Si in shallow alluvial aquifers in Chapai-Nawabganj, Northwestern Bangladesh: implication for potential source of organic carbon
Article
Article Title | Interrelationship of TOC, As, Fe, Mn, Al and Si in shallow alluvial aquifers in Chapai-Nawabganj, Northwestern Bangladesh: implication for potential source of organic carbon |
---|---|
ERA Journal ID | 200438 |
Article Category | Article |
Authors | Reza, A. H. M. Selim (Author), Jean, Jiin-Shuh (Author), Lee, Ming-Kuo (Author), Luo, Shang-De (Author), Bundschuh, Jochen (Author), Li, Hong-Chun (Author), Yang, Huai-Jen (Author) and Liu, Chia-Chuan (Author) |
Journal Title | Environmental Earth Sciences |
Journal Citation | 63 (5), pp. 955-967 |
Number of Pages | 13 |
Year | 2011 |
Publisher | Springer |
Place of Publication | Germany |
ISSN | 1866-6280 |
1866-6299 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s12665-010-0764-3 |
Web Address (URL) | https://link.springer.com/article/10.1007/s12665-010-0764-3 |
Abstract | Two boreholes and ten piezometers in the Ganges flood plain were drilled and installed for collecting As-rich sediments and groundwater. Groundwater samples from the Ganges flood plain were collected for the analysis of cations (Ca2+, Mg2+, K+, Na+), anions (Cl-, NO3 -, SO4 2-), total organic carbon (TOC), and trace elements (As, Mn, Fe, Sr, Se, Ni, Co, Cu, Mo, Sb, Pb). X-ray powder diffraction was performed to characterize the major mineral contents of aquifer sediments and X-ray fluorescence (XRF) to analyze the major chemical composition of alluvial sediments. Results of XRF analysis clearly show that fine-grained sediments contain higher amounts of trace element because of their high surface area for adsorption. Relative fluorescence index (15-38 QSU) of humic substance in groundwater was measured using spectrofluorometer, the results revealed that groundwater in the Ganges flood plain contains less organic matter (OM). Arsenic concentration in water ranges from 2.8 to 170 μg/L (mean 50 μg/L) in the Ganges flood plain. Arsenic content in sediments ranges from 2.1 to 14 mg/kg (mean 4.58 mg/kg) in the flood plains. TOC ranges from 0.49 to 3.53 g/kg (mean 1.64 g/kg) in the Ganges flood plain. Arsenic is positively correlated with TOC (R2 = 0. 55) in sediments of this plain. Humic substances were extracted from the sediments from the Ganges flood plain. Fourier transform infrared analysis of the sediments revealed that the plain contains less humic substances. The source of organic carbon was assigned from δ13C values obtained using elemental analysis-isotope ratio mass spectrometry (EA-IRMS); the values (-10 to -29. 44‰) strongly support the hypothesis that the OM of the Ganges flood plain is of terrestrial origin. |
Keywords | arsenic, organic matter, Bangladesh, Ganges flood plain, spectrofluorometer |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 410402. Environmental assessment and monitoring |
370302. Inorganic geochemistry | |
410404. Environmental management | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | National Cheng Kung University, Taiwan |
Auburn University, United States | |
Karlsruhe University of Applied Sciences, Germany | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q291y/interrelationship-of-toc-as-fe-mn-al-and-si-in-shallow-alluvial-aquifers-in-chapai-nawabganj-northwestern-bangladesh-implication-for-potential-source-of-organic-carbon
1742
total views8
total downloads1
views this month0
downloads this month