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Dr. Tesi Okeoghene Godswill
PhD (Abraka) MSc (Ibadan) BSc (Abraka)

  • Designation: Senior Lecturer
  • Office/Department: College of Science
  • Specialisation: Analytical / Environmental Chemistry
  • Tel:



Scholarly/Professional Summary

Dr. Godswill O. Tesi is a Senior Lecturerand Researcher in the Department of Chemistry, College of Science, FederalUniversity of Petroleum Resources, Effurun, Delta State, Nigeria.  He attended the Delta State University, Abrakaand University of Ibadan, Ibadan where he obtained his PhD degree in EnvironmentalChemistry and MSc degree in Analytical Chemistry respectively. He is arecipient of several fellowships, scholarships and awards including aPostdoctoral Research Fellowship at the Faculty of Environmental Management,Prince of Songkla University, Thailand. Dr. Tesi has over thirteen (13) yearsof teaching and research experiences, teaching students from various social andcultural backgrounds and carrying out research in the area of Environmental & Analytical Chemistrywith special interest in thedetermination, quantification, fate, sources, ecological and human health riskassessment of inorganic and organic pollutants in different environmental media(soil, sediments, water and dust), food, personal care products, human andanimal tissues as well as remediation studies using low cost adsorbents andnanomaterials/nanocomposites. He has published over ninety (90) peer-reviewedarticles in reputable Scientific Journals indexed in Science CitationIndex Expanded, Web of Science, Clariviate Analytics, Scopus etc. He has successfully obtained grants from differentorganization including the Bayelsa State Education Trust Fund and has completedthree scientific projects. Dr Tesi has contributed papers and abstracts tonational and international conferences. His Google Scholar Citations frompublished research works is 1668 with h-index of 24 and i10-index of 52 andScopus h-index is 18 as at 21st April, 2025 indicating his visibilityand impact as a researcher. He is ranked among the top 500 authors in Nigeria byElsevier based scholarly output over the period 2015 to 2025. Dr. Tesi hasserved as reviewer for several Scientific Journals in his field, including, EmergingContaminants, Springer Nature (SN) Applied Sciences, Scientific Reports, AsianJournal of Water, Environment and Pollution etc. He has served as reviewers ofseveral research grants applications to several funding agencies including theThomas-Bassir Biomedical Foundation (TBBF). He is a member of the EditorialBoard, Delta Chemist Magazine and the African Scientist. Dr. Tesi is a member of the Institute of Chartered Chemist of Nigeria(ICCON), Chemical Society of Nigeria (CSN), Institute of Strategic Managementof Nigeria (ISMN) and Oracle Corporation, California, USA. Dr. Tesi has heldseveral positions and served in various committees at the Departmental and Facultylevels and the University system. He is happily married with children.


Other Information

     PhD (Environmental Chemistry); MSc (Analytical Chemistry); BSc (Ed) (Chemistry)

Member Chemical Society of Nigeria (MCSN); Member Institute of Chartered Chemist of Nigeria (MICCON); Member, American Chemical Society (MACS)
Post-DoctoralResearch Fellowship, Prince of Songkla University, Thailand; Listed among the top500 authors by scholarly output in Nigeria over the period 2018- >2023 byElsevier;

Publications

Assessment of organophosphate pesticides in soils and vegetables from agricultural areas of Delta Ce ...

Journal: Scientific Reports , 2025
Author: Tesi, G.O., Okpara, K.E., Tesi, J.N., Agbozu, I.E. and Techato, K.

Organophosphate pesticides in herbal mixtures from Bayelsa State, Nigeria: implication for human exp ...

Journal: Journal of Environmental Exposure Assessment, 2025
Author: Tesi, G.O., Lari, B., Ogbuta, A.A., Felagha, I., Obodoka, G.C., Ogbomade, W.E., Okpara, K.E., Osioma, E. and Agbozu, I.E

Adsorption and desorption performances of Eichhornia crassipes (water hyacinth) roots and leaves pow ...

Journal: Ovidius University Annals of Chemistry, 2025
Author: Tesi, G.O., Ejeromedoghene, O., Alli, Y.A., Okunoja, H.B. and Ipeaiyeda, A.R.

Distribution pattern, sources and ecological risk assessment of polycyclic aromatic hydrocarbons (PA ...

Journal: Journal of Chemical Society of Nigeria, 2025
Author: Okonkwo, E.O., Nwajei, G.E., Agbaire, P.O. and Tesi, G.O

Occurrence and human health risk assessment of phthalate esters in sediments from a riverine in sout ...

Journal: African Scientist, 2025
Author: Okpara K.E. and Tesi, G.O.

Phthalate esters in raw and finished water from drinking water treatment plants and human exposure i ...

Journal: African Scientist, 2025
Author: Okpara K.E. and Tesi, G.O.

Levels of endocrine disrupting organochlorine pesticides in herbal medicines from Bayelsa State, Nig ...

Journal: Toxicology and Environmental Health Sciences, 2024
Author: Tesi, G.O., Felagha, I., Ogbuta, A.A., Ogbomade, W.E., Obodoka, G.C., Iniaghe, P.O. and Kpomah, E.D.

Human exposure to endocrine-disrupting organochlorine and organophosphate pesticides in locally prod ...

Journal: International Journal of Environmental Health Research, 2024
Author: Tesi, G.O., Okpara, K.E., Tesi, J.N., Agbozu, I.E. and Techato, K.

Safety evaluation of human exposure to potentially toxic metals in the organs of sheep from southern ...

Journal: Journal of Trace Element and Minerals, 2024
Author: Tesi, G.O., Iniaghe, P.O., Ogwu, I.F., Okunoja, H.B. Iwegbue, C.M.A. and Egobueze, F.E.

Sorption of Mn(II) ions from wastewater using dried and blended water hyacinth (Eichhornia crassipes ...

Journal: Journal of the Turkish Chemical Society Section A: Chemistry,, 2024
Author: Tesi, G.O., Ejeromedoghene, O., Kpomah, B. and Ipeaiyeda, A.R.