1. Institute of Geosciences and Environmental Management (IGEM), Rivers State University, Port Harcourt 500101, Nigeria
2. School of Environmental Health, Rivers State College of Health Sciences and Technology Management, Port Harcourt 500272, Nigeria
3. Water Supply, Sanitation and Environmental Engineering Department, IHE Delft Institute for Water Education, 2611 AX Delft, The Netherlands
4. Research and Development Department, EarthWatch Research Institute, 3 David Nna Layout, Rumuogba, Port Harcourt 500102, Nigeria