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Abstract
Five positions were drilled with the depth of 45 metres, in order to research the source of arsenic contamination in groundwater in Cat Tien district, Lam Dong province. In the Cat Tien district, high concentratring of arsenic are found in both of the Holocene (adQ) and Pleistocene (J2ln) aquifers. Reduction of FeOOH(As) and reduction of arsenic poverty ore types to release arsenic to solution, are main mechanisms to explain the arsenic pollutes groundwater in Cat Tien district. The high concentration of arsenic in the sediments of the Cat Tien delta and the occurrence of reducing conditions were essential conditions to explain the extreme degree and extent of arsenic pollution. Elevated arsenic pollution would be due to the biodegradation of buried peat deposits which caused the high reduction of FeOOH(As) and affored supplied high concentration of arsenic to the groundwater.
Issue: Vol 19 No 1 (2016)
Page No.: 101-112
Published: Mar 31, 2016
Section: Natural Sciences - Research article
DOI: https://doi.org/10.32508/stdj.v19i1.549
Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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