Open Access Research Paper Views (1033) Impacts of industrial effluent and dumpsite leachate discharges on the quality of groundwater in Oyo state, Nigeria Olubunmi Ayoola Nubi, Ndubuisi Ajuonu J. Biodiv. & Environ. Sci. 1(3), 13-18, June 2011. Keywords: Effluent, Groundwater, Ibadan, Leachate, Ona-ara Details