1. Department of Water Resources Management and Agrometeorology, Federal University of Agriculture, Abeokuta, Ogun State, Southwest, Nigeria
2. United Nations University, Institute of Water, Environment and Health, Hamilton, Ontario, Canada
3. Department of Microbiology, Federal University of Agriculture, Abeokuta, Ogun State, Southwest, Nigeria
4. Department of Civil Engineering, University of Kentucky, Lexington, Kentucky, USA