Brownson, D.N. and Nwandu, L.N. 2025. Determination of Physicochemical Properties of Wastewater from the Petrochemical Industry. Faculty of Natural and Applied Sciences Journal of Basic and Environmental Research. 2, 4 (Dec. 2025), 53–61. DOI:https://doi.org/10.63561/jber.v2i4.1039.