Application of geostatistical techniques to assess groundwater quality in the Lower Anayari catchment in Ghana

Dickson Abdul-Wahab; Abass Gibrilla; Dickson Adomako; Dennis K. Adotey; Samuel Ganyaglo; Cynthia Laar; Nafisatu Zakaria; Geophrey Anornu

HydroResearch (Jan 2022)

Application of geostatistical techniques to assess groundwater quality in the Lower Anayari catchment in Ghana

Dickson Abdul-Wahab,
Abass Gibrilla,
Dickson Adomako,
Dennis K. Adotey,
Samuel Ganyaglo,
Cynthia Laar,
Nafisatu Zakaria,
Geophrey Anornu

Affiliations

Dickson Abdul-Wahab: Graduate School of Nuclear and Allied Sciences, University of Ghana, Legon-Accra, Ghana; Corresponding author.
Abass Gibrilla: Nuclear Chemistry and Environmental Research Centre, National Nuclear Research Institute, GAEC, Box LG 80, Kwabenya-Accra, Ghana; Department of Water Resources and Sustainable Development, School of Sustainable Development, University of Environment and Sustainable Development, Somanya, Ghana
Dickson Adomako: Graduate School of Nuclear and Allied Sciences, University of Ghana, Legon-Accra, Ghana; Ghana Space Science and Technology Institute, GAEC, Box LG 80, Kwabenya-Accra, Ghana
Dennis K. Adotey: Graduate School of Nuclear and Allied Sciences, University of Ghana, Legon-Accra, Ghana
Samuel Ganyaglo: Nuclear Chemistry and Environmental Research Centre, National Nuclear Research Institute, GAEC, Box LG 80, Kwabenya-Accra, Ghana
Cynthia Laar: Nuclear Chemistry and Environmental Research Centre, National Nuclear Research Institute, GAEC, Box LG 80, Kwabenya-Accra, Ghana
Nafisatu Zakaria: Nuclear Chemistry and Environmental Research Centre, National Nuclear Research Institute, GAEC, Box LG 80, Kwabenya-Accra, Ghana
Geophrey Anornu: Department of Civil Engineering, Kwame Nkrumah University of Science and Technology (KNUST), Private mailbag, University Post office, Kumasi, Ghana

Journal volume & issue: Vol. 5
pp. 35 – 47

Abstract

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In this study, integrated geostatistical techniques were applied to appraise the groundwater quality for various purposes in the Lower Anayari Catchment (LAC), Ghana. Physico-chemical and trace metals were analysed for 41 groundwater samples. Groundwater in LAC was generally found to be moderately hard to fresh and the information entropy-based groundwater quality index (IEGQI) ranked approximately 80.49% of the groundwater as excellent. Partial Least square regression analysis suggests that PO43−, As, Cd and Fe are important parameters for the prediction of IEGQI values. The irrigation water quality index (IWQI) suggest that 2.44% of groundwater in LAC is suitable for moderate permeability soils, 65.85% for moderate to high permeability soils and 31.71% for moderate to high salt tolerance plants. The LSI and RSI indices rate groundwater in LAC to be aggressive water with a high probability of being corrosive to metals, depending on the levels of dissolved oxygen present.

Published in HydroResearch

ISSN: 2589-7578 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Environmental technology. Sanitary engineering: Water supply for domestic and industrial purposes
Website: https://www.keaipublishing.com/en/journals/hydroresearch/

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