Research Article

Microplastic Polymers in Surface Waters and Sediments in the Creeks Along the Kenya Coast, Western Indian Ocean (WIO)

European Journal of Sustainable Development Research, 2022, 6(1), em0177,
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Whereas the Western Indian Ocean (WIO) has been reported to be polluted with microplastics (MPs). Documented information on the specific polymeric composition of these particles in seawater and sediments along the Kenya coast is insufficient. This study assessed the abundance and types of microplastic polymers in the region. Microplastics were sampled from surface water using 500µm neuston nets and from the sediments using a 3.6 cm-diameter corer. Fourier Transform Infrared (FTIR) spectroscopy, Differential Scanning Calorimetry (DSC) and Nuclear Magnetic Resonance (NMR) were used to identify the MPs polymer types. Four polymer types were identified of which, high-density polyethene was the most abundant at 38.3%, followed by polypropylene (34.6%), low-density polyethene (27.1 %), and medium density polyethene (17.1%). The results demonstrate the extent of exposure to microplastics of the region’s ecosystems and provide the impetus for proper policy briefs regarding the management and disposal of plastic waste, protect and save oceans rich in biodiversity for sustainable development.


microplastics polypropylene polyethylene differential scanning calorimetry Fourier transform infrared Western Indian Ocean Kenya Coast


Kerubo, J. O., Onyari, J. M., Muthumbi, A. W. N., Andersson, D. R., & Kimani, E. N. (2022). Microplastic Polymers in Surface Waters and Sediments in the Creeks Along the Kenya Coast, Western Indian Ocean (WIO). European Journal of Sustainable Development Research, 6(1), em0177.
Kerubo, J. O., Onyari, J. M., Muthumbi, A. W. N., Andersson, D. R., and Kimani, E. N. (2022). Microplastic Polymers in Surface Waters and Sediments in the Creeks Along the Kenya Coast, Western Indian Ocean (WIO). European Journal of Sustainable Development Research, 6(1), em0177.
Kerubo JO, Onyari JM, Muthumbi AWN, Andersson DR, Kimani EN. Microplastic Polymers in Surface Waters and Sediments in the Creeks Along the Kenya Coast, Western Indian Ocean (WIO). EUR J SUSTAIN DEV RES. 2022;6(1):em0177.
Kerubo JO, Onyari JM, Muthumbi AWN, Andersson DR, Kimani EN. Microplastic Polymers in Surface Waters and Sediments in the Creeks Along the Kenya Coast, Western Indian Ocean (WIO). EUR J SUSTAIN DEV RES. 2022;6(1), em0177.
Kerubo, Joyce O, John M Onyari, Agnes W N Muthumbi, Deborah Robertson Andersson, and Edward Ndirui Kimani. "Microplastic Polymers in Surface Waters and Sediments in the Creeks Along the Kenya Coast, Western Indian Ocean (WIO)". European Journal of Sustainable Development Research 2022 6 no. 1 (2022): em0177.
Kerubo, Joyce O et al. "Microplastic Polymers in Surface Waters and Sediments in the Creeks Along the Kenya Coast, Western Indian Ocean (WIO)". European Journal of Sustainable Development Research, vol. 6, no. 1, 2022, em0177.


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