Ifiora, C.C. et al. 2026. Impact of industrial activities on water and sediment quality of the Okulu River: A study of PH, Alkalinity, Cadmium, and Petroleum Hydrocarbons. Journal of Human, Culture, Society, and Education. 3, 1 (Jan. 2026), 1–12. DOI:https://doi.org/10.62672/hucse.v3i1.49.