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All Journal International Journal of Social and Education (INJOSEDU)
Daniel Chinazom Anizoba
Department of Agricultural and Bioresources Engineering, Nnamdi Azikiwe University, Awka, Anambra state, Nigeria

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The Impact of Agricultural Activities and Wastewater Discharge From Ogbujiriekwe Stream Nimo on Water Suitability For Domestic and Agricultural Purposes Victor Obinna Alaribe; Daniel Chinazom Anizoba; Ubah Joseph Ikenna; Louis Chukwuemeka Orakwe; John Ikedinachukwu Maduegbuna
INJOSEDU: International Journal of Social and Education Vol. 3 No. 8 (2026): International Journal of Social and Education (INJOSEDU)
Publisher : Adisam Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.23904180

Abstract

Water quality at the surface of small tropical streams is extremely vulnerable to diffuse runoff from agriculture and untreated household wastewater. Over six months, this research assessed the physico-chemical quality of Ogbujiriekwe Stream in Nimo, Anambra State, Nigeria, at four sampling stations (rainy season: June–August 2025; dry season: November 2025–January 2026). The parameters examined comprised pH, electrical conductivity (EC), total dissolved solids (TDS), nitrate-nitrogen (NO₃-N), phosphate-phosphorus (PO₄-P), sulphate, carbonate, bicarbonate, chloride, major cations (Ca²⁺, Mg²⁺, Na⁺, K⁺), boron, and ammonium-nitrogen (NH₄-N). The Weighted Arithmetic Water Quality Index (WQI) was calculated, and the findings were compared against WHO guidelines. Mean NH₄-N levels (2.6–4.6 mg L⁻¹) persistently surpassed the WHO threshold of 1.5 mg L⁻¹, and potassium was likewise elevated, pointing to inputs from agricultural fertilizers and organic waste. Every other major ion stayed within acceptable limits. WQI values spanned 132.9–159.2 (rainy season) to 173.4–244.6 (dry season), rating the water as “unsuitable for human consumption” at all stations and in both seasons.
Co-Authors John Ikedinachukwu Maduegbuna Louis Chukwuemeka Orakwe Ubah Joseph Ikenna Victor Obinna Alaribe