Biose, E., & Nwodo, G. (2026). Oil-Derived Polycyclic Aromatic Hydrocarbons and Total Petroleum Hydrocarbons in Surface Water of Okpare Olomu River, Niger Delta: Contamination Levels and Risk Evaluation. NIU Journal Of Social Sciences, 12(1), 149-162. doi:10.58709/niujss.v12i1.2426