Environmental Effects of Landuse on Groundwater Quality in Irepodun Local Government Area, Kwara State
No Thumbnail Available
Date
2023
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Sokoto Journal of the Social Sciences, Published by Faculty of Social Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria.
Abstract
The paper examines the impact of land use types on groundwater quality in Irepodun Local
Government Area, Kwara State. Twelve groundwater samples were collected from hand-dug
wells and boreholes from various land uses in four wards of the study area. These samples were
analysed for fifteen physicochemical and microbial parameters using standard laboratory
analytical techniques and compared with the World Health Organisation recommended
standards for drinking water. Tables were used in presenting the data and principal component
analysis were carried out on the data generated. The result showed that groundwater quality
varies in the sampled locations, and the physicochemical parameters analysed were within the
WHO-recommended standards except for BOD, TDS, Mg, and Ca. The microbial analysis showed
that THC ranges between 35-102×10-2 and 24-64×10-3 CFU/ml, while the TFC ranged from 1
5×10-1 and 3-8×10-2 CFU/ml. The study revealed that Proteus mirabilis, Shigella sp, Pseudomonas
aeruginosa, and Bacillus sp. were the most prominent organisms observed in the water samples.
The result of the PCA revealed that 17 variables were reduced to 5 orthogonal components which
cumulatively explain 89% of the variance. The contributions of the components varied from
7.67% to 41.20%, each capturing the influence of various land uses on groundwater quality. The
study recommends the integration of land use and water quality for effective decision-making
and sustainable land-water management, thereby informing land use optimization and water
pollution control policies to manage water resources for the current and future generations.
Description
Keywords
Landuse, Groundwater, Water Quality, Environmental, PCA
Citation
Landuse; Groundwater; Water Quality; Environmental; PCA