Dr. Charles Mitto Kosore (Dr. CMK) is one of our research scientists at Kenya Marine and Fisheries Research Institute (KMFRI) based at the Marine and Coastal Systems and Blue Economy under the department of Oceanography and Hydrography (O & H) in Mombasa, Kenya. Dr. CMK holds an Erasmus Mundus joint Master Degree in Quality in Analytical Chemistry from the University of Algrave, Portugal and University of Cadiz, Spain and PhD in Chemistry from Pwani University, Kilifi, Kenya. Dr. CMK is an experienced scientist in the area marine environmental chemistry, in which his current interests are in marine litter pollution, especially plastics and microplastics in the biotic and abiotic compartments of marine environment, heavy metals, persistent organic pollutants (POPs), nutrient dynamics and water quality in general. Dr. CMK’s Ph.D. thesis was titled, “Environmental concentrations of microplastics in surface water, sediments and biota in East African marine waters”. Dr. CMK has been involved in MPs research from 2017 and since then I have implemented a number of related research projects. Some of the projects he has undertaken are: 1) Microplastics and plastic-derived chemical contaminants in Africa: Implication on human health and the loss of aquatic biodiversity” in collaboration with the Federal University of Technology Akure (FUTA), Nigeria; 2) Adsorption-desorption of metals by plastic wastes and act as a point source of toxic metals to Kenya’s marine ecosystems; 3) Assessment of the Ecological Aspects of Microplastic Pollution in Dar Es Salaam, Zanzibar and Mombasa Coastal Marine Environments.

Running projects: Project coordinator; Assessment of the Ecological Aspects of Microplastic Pollution in Dar Es Salaam, Zanzibar and Mombasa Coastal Marine Environments (MICROMARINE)

          Research networks: ResearchGate

1. Charles Mitto Kosore, Edward Waiyaki, Faith Kimaga. Assessing the impact of banning the single‑use plastic carrier bags: a case study for Kenyan marine environment looking atmacro, meso, and microplastics. (2024) 196:329.  https://doi.org/10.1007/s10661-024-12473-w
2. Amina Asiya Nchimbi, Daniel Abel Shilla, Charles Mitto Kosore, Dativa Joseph Shilla, Yvonne Shashoua, and Farhan R Khan (2022). Microplastics in marine beach and seabed sediments along the coasts of Dar es Salaam and Zanzibar in Tanzania. Mar Pollut Bull . 2022 Dec;185(Pt A):114305. doi: 10.1016/j.marpolbul.2022.114305.
3. Amina Asiya Nchimb, Charles Mitto Kosore, Nancy Oduor, Dativa Joseph Shilla, Yvonne Shashoua, Farhan R. Khan, and Daniel Abel Shilla (2022). Microplastics in Marine Nearshore Surface Waters of Dar es Salaam and Zanzibar, East Africa. Bulletin of Environmental Contamination and Toxicology. https://doi.org/10.1007/s00128-022-03620-5.
4. Charles MittoKosore, LoiceOjwang, JustinMaghanga, JosephKamau, Daniel Shilla, GertEveraert, Farhan R.Khan, and YvonneShashoua (2022). Microplastics in Kenya's marine nearshore surface waters: Current status. Marine Pollution Bulletin, Volume 179, June 2022, 113710.
5. Jenoh EM, Traore´ M, Kosore C, Koedam N (2021). Biochemical response of Sonneratia alba Sm. branches infested by a wood boring moth (Gazi Bay, Kenya). PLoS ONE 16(11): e0259261. https://doi.org/10.1371/journal.pone.0259261
6. Joseph Kamau , Oliver Ochola, Boaz Ohowa, Charles Mitto, Charles Magori, Chepkemboi Labatt, Melckzedeck Osore, Shigalla B. Mahongo, and Margaret S. Kyewalyanga  (2020). Employing multivariate analysis to determine the drivers of productivity on the North Kenya Bank and in Kenyan territorial waters. WIO Journal of Marine Science Special Issue 1 / 2020 33-41.
7. Joseph Kamau, Noah Ngisiange, Oliver Ochola, James Kilionzi, Amon Kimeli, Shigalla B. Mahongo, Harrison Onganda, Charles Mitto, Boaz Ohowa, Charles Magori, Edward Kimani, Melckzedeck Osore (2020). Factors influencing spatial patterns in primary productivity in Kenyan territorial waters. WIO Journal of Marine Science Special Issue 1 / 2020 9-18.
8. C.M. Kosore, M.D. Galindo-Riano and M. Dı´az-de-Alba., Assessing trace-element mobility in Algeciras Bay (Spain) sediments by acid and complexing screening. Arabian Journal of Chemistry (2019), http://dx.doi.org/10.1016/j.arabjc.2015.06.041.
9. C Kosore, L Ojwang, J Maghanga, J Kamau, A Kimeli, J Omukoto, N Ngisiag’e, J Mwaluma1, H Ong’ada, C Magori and E Ndirui. (2018). Occurrence and Ingestion of Microplastics by Zooplankton in Kenya’s Marine Environment: First Documented Evidence, African Journal of Marine Science, 10.2989/1814232X.2018.1492969.
10. Joseph Kamau, Jane Catherine Ngila, Bernard Kirui, Stephen Mwangi, Charles Mitto Kosore, Veronica Wanjeri and Sturky Okumu, (2015). Spatial variability of the rate of organic carbon mineralization I a sewage impacted forest, Mikindani, Kenya, J. Soils  Sediments, 15:2466–2475.
11. Wanjeri, V.O, Okuku, E.O, Ohowa, B.O, Kosore, M.C. and Ongore, C.O., (2013). An insight into ecotoxicological significance of PAHs contamination in selected Kenyan estuaries, Journal of Environmental Science and Water Resources, Vol. 2 (5), pp. 157 – 166.
12. M. Díaz-de Alba, M.D. Galindo-Riaño, M.J. Casanueva-Marenco, M. García-Vargas, C.M. Kosore, (2011). Assessment of the metal pollution, potential toxicity and speciation of sediment from Algeciras Bay (South of Spain) using chemometric tools, Journal of Hazardous Materials, 190, 177–187.