Oyewumi Tolulope Ajao

Critical Organic Loading and Microbial Contamination in an Urban West African River: A Water Quality Assessment of River Ona, Nigeria

Praise Adenike Alli, Oluwatunmise Peter Abolarin, Samuel Opeyemi Kayode, Itunu Deborah Odunewu, Oyewumi Tolulope Ajao & Precious Adesope Olaomotito · Journal of Engineering Research and Reports · 2026

The present study evaluated the physicochemical and microbial water quality of River Ona, Ibadan, Nigeria, at three sampling stations representing the upstream (Loc 1), midstream (Loc 2), and downstream (Loc 3) reaches of the river's residential corridor. These stations were sele...