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  3. Akinfemiwa Akanbi

Hydro-Geochemical Studies of Groundwater Around Oke-Ebo and Within Ajayi Crowther University Campus, Oyo Town, Southwestern Nigeria

Olanrewaju Akinfemiwa Akanbi(1), Olukayode Adeyinka Falana(2), Victor Iyinoluwa Alao(3),


(1) Department of Earth Sciences, Faculty of Natural Sciences, Ajayi Crowther University, Oyo, Nigeria
(2) Department of Earth Sciences, Faculty of Natural Sciences, Ajayi Crowther University, Oyo, Nigeria
(3) Department of Earth Sciences, Faculty of Natural Sciences, Ajayi Crowther University, Oyo, Nigeria
Corresponding Author

Abstract


Major ionic chemical composition and physico-chemical parameters of eighteen (18) groundwater samples within Ajayi Crowther university (ACU) and Oke-Ebo area of Oyo town, southwestern Nigeria were analysed for hydro-geochemical facies characterisation. The pH ranges from 6.2 to 7.5 and the total dissolved solids (TDS) was between  240 and 1570 mg/L. The total dissolved solids were found higher in samples within the ACU premises compared to those in other areas.  The spread of major ions concentration in mg/L are Ca2+ 16 – 62, Mg2+ 7.5 – 23.3, Na+ 4.13 – 13.1; K+ 2.12 – 7.18 and for anions; HCO3- 50 – 180, SO42-, 10 – 48, NO3-, 1.36 – 8.04; and Cl- 18.71 – 65.58. From the average concentrations, the relative abundance of the cations is in the order of Ca2+>Mg2+>Na+>K+ while for anion, it is HCO3- >Cl- >SO42- > NO3-. For hydro geochemical facie classification using piper plot, the groundwater is predominantly the Ca-HCO3 water type.

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DOI: 10.56534/acjpas.v4i2.143

DOI (PDF): https://doi.org/10.56534/acjpas.v4i2.143.g59

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