1. Institute of Ecology and Environmental Studies, Obafemi Awolowo University, Ile-Ife, Nigeria
2. Department of Microbiology, Obafemi Awolowo University, Ile-Ife, Nigeria
3. SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa
4. Department of Industrial Chemistry, The Technical University, Ibadan, Oyo State, Nigeria
5. Department of Chemistry, Obafemi Awolowo University, Ile Ife, Nigeria