1. Department of Environmental Engineering Management, University of Energy and Natural Resources, Sunyani, Ghana
2. Department of Chemistry, Fourah Bay College, University of Sierra Leone, Mount Aureol, Sierra Leone
3. Geology Department, Fourah Bay College, University of Sierra Leone, Mount Aureol, Sierra Leone
4. National Nuclear Research Institute, Ghana Atomic Energy Commission, Accra, Ghana
5. Department of Civil Engineering and Architecture, Fourah Bay College, University of Sierra Leone, Mount Aureol