Temporal and Spatial Dynamics of Selected Physicochemical Parameters in Awoye River, Ondo State, Nigeria
Authors: Aribo, E.R.
DOI Info: http://doi.org/10.5281/zenodo.18061407
ABSTRACT
Rivers play a vital role in supporting human livelihoods and ecological balance, yet their water quality is increasingly affected by natural processes and anthropogenic activities. This study examined the temporal and spatial dynamics of selected physicochemical parameters in the Awoye River, Ondo State, Nigeria, over a six-month period. Water samples were collected from three stations and analyzed using standard methods for parameters including pH, temperature, conductivity, total dissolved solids (TDS), total suspended solids (TSS), dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), nutrients, and oil and grease (O/G). Results indicated marked seasonal and spatial variations. Conductivity, TDS, turbidity, nutrients, and O/G were significantly higher in the rainy season than in the dry season, reflecting the influence of runoff and effluent discharges. Stations located near oil exploration and effluent discharge points recorded elevated levels of chloride, salinity, and hydrocarbons. Although DO concentrations remained within acceptable limits, high BOD and COD values suggested organic enrichment and potential ecological stress. The study underscores the vulnerability of Awoye River to both natural and anthropogenic pressures and recommends continuous monitoring and sustainable management to protect water quality and aquatic resources.
Affiliations: Department of Aquaculture and Fisheries Management, Faculty of Agriculture, University of Benin, Benin City, P.M.B. 1154, Benin City, Nigeria.
Keywords: Physicochemical Parameters, Temporal Variation, Spatial Variation, Water Quality, Nigeria
Published date: 2025/12/30
