He has taught classes at the Niger Delta University (department of community medicine), University of Maiduguri (department of geography), University of Uyo (center for wetlands and waste management studies) and Kwara State University (department of environmental health). Raimi Morufu Olalekan is the author or co-author of more than 100 scientific publications and expert papers in American, European and Asian journal to his credit, 20 research projects under way including cumulative impact assessment of air quality and assessment of digital debris management in health Institutions in South-South, Nigeria. He has served as a key note speaker in many International and Local Conferences and has attended a number of certified educational seminars, participants of numerous symposiums in Nigeria and abroad.

Raimi Morufu Olalekan has successfully supervised more than (5) Master degrees candidates, two (2) doctorate degrees and currently supervising a number of Master and Doctorate degree candidates. His work on ground water pollution in the Niger Delta amongst others is opening new path of scientific knowledge and research in pollution control management and related fields. He is a reviewer and an editorial board member to many Scientific Journals viz: American Journal of Environmental Sciences, American Public Health Association (APHA), Plos One, Heliyon, Earth Science & Environment Research Journal (OMSP International), Science Publishing Group, CPQ Medicine, Acta Scientific Agriculture, MAR Microbiology, Journal of Environmental Science and Research, International Journal on Research Case Reports and Case Series, Journal of Education and Learning Management, African Journal of Humanities and Social Sciences,, Continental Journal of Applied Sciences, Continental Journal of Biological Sciences, Open Access Journal of Biomedical Engineering and Biosciences, Journal of Medical Care Research and Review, Journal of Nursing and Primary Care, Journal of Medical Reviews, New International Journal of Medicine and Science (NIJMS), Ecuadorian Journal of Science Research and Innovation, Academic Research Journal on Health Information Management, Journal of Research in Food Science and Nutrition, IMPACT: International Journal of Research in Humanities, Arts and Literature, American Journal of Epidemiology and Public Health, Pollution and Public Health, Advanced Journal of Toxicology: Current Research, International Journal of Case Reports & Short Reviews (IJCRSR), Journal of Research in Environmental Science and Toxicology, Journal of Community Medicine & Public Health Care, Journal of Bacteriology Research (JBR), Journal of Public Health and Epidemiology, Citizen Science: Theory and Practice, Agricultural Sciences Research Journal [ARJ], ES Journal of Public Health, American Journal of Environmental Protection, Elixir International Journal etc. and has also published several academic papers in academic International Journals, author of few books related to water pollution in the Niger Delta title: Assessment of Trace Elements in Surface and Ground Water Quality (Lambert academic publishing 2017, First edition) and member of a number learned societies.

His current research interests focus on pollution control management, chemicals & health, environmental public health policy & practice, environmental justice & health equity, physical activity & environment, noise & health, building health & resilient communities, children’s environmental health, emerging fields in environmental health, energy systems & policy, food & the environment, nature & human health, clean air, water & soil, climate change & human health, health impact assessment, water pollution and management, environmental impact assessment, waste management, institutional capacity building, policy and governance issues, environmental management, risk and vulnerability assessment, hazard mitigation, and resilience building. His taught courses include: Anthropogenic climate, Introduction to Environmental Health, Waste Management, Environmental Air Pollution and Human Health, Environmental Land Pollution and Human Health, Demography, Disaster Management, The Socio-Economic Environment, Biological and Physical Environment etc.