1. Department of Chemistry, Faculty of Science, Mbarara University of Science and Technology, Mbarara P.O. Box 1410, Uganda
2. Centre for Water, Environment and Development, School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
3. Department of Environmental Health and Disease Prevention, Faculty of Public Health, Lira University, Lira P.O. Box 1035, Uganda
4. Department of Chemistry, College of Natural Sciences, Makerere University, Kampala P.O. Box 7062, Uganda
5. Department of Civil and Environmental Engineering, College of Engineering, Design, Art and Technology, Makerere University, Kampala P.O. Box 7062, Uganda
6. Department of Chemistry, University of Kerala, Thiruvananthapuram 695581, India
7. Department of Chemistry, Faculty of Science, University of Lucknow, Lucknow 226007, India
8. Department of Science and Vocational Education, Lira University, Lira P.O. Box 1035, Uganda
9. Department of Chemistry, Faculty of Science and Technology, Andhra University, Visakhapatnam 530003, India