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Conceptual Model for Arsenic Distribution and Its Relationship with Groundwater Depth

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  • Alexander Kwaku Banson

    (Perseus Mining Ghana Limited, Ghana,)

  • Richard Kwasi Amankwah

    (University of Mines and Technology, Ghana)

  • Samuel Agyarko Ndur

    (University of Mines and Technology, Ghana)

Abstract

In this study, arsenic distribution in groundwater and its relationship with the depth of groundwater was studied. During the study, water samples were taken from wells and community boreholes in the Obuasi Municipality. The samples were analyzed, and models were developed to provide a better understanding of arsenic distribution and groundwater depth. The study concludes that, at greater depth in community boreholes (CBH > 50 m), there is a positive correlation of depth with total arsenic indicating total arsenic mobilization whereas in shallower depth (wells and CBH shallow MBH > deep MBH > shallow CBH > deep CBH. Shallow monitoring boreholes (MBH) appear to mobilize arsenic through silicate weathering and deep MBHs and CBHs generally mobilize arsenic through carbonate weathering, whilst shallow CBHs and wells appear to mobilize arsenic through a combination of carbonate and silicate weathering. There is therefore the need to identify areas with suitable deep aquifers where there is adequate knowledge of the recharge mechanism and the soil profile to determine protected aquifers for location of new boreholes.

Suggested Citation

  • Alexander Kwaku Banson & Richard Kwasi Amankwah & Samuel Agyarko Ndur, 2020. "Conceptual Model for Arsenic Distribution and Its Relationship with Groundwater Depth," International Journal of Research and Scientific Innovation, International Journal of Research and Scientific Innovation (IJRSI), vol. 7(10), pages 01-09, October.
    • Handle: RePEc:bjc:journl:v:7:y:2020:i:10:p:01-09
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