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PhD in Chemistry (University of Connecticut, USA)

Master inÌýEnvironmental Management (Yale,USA)

BSc in Chemistry (University of Nairobi, Kenya)

My research interests lie in studying the cycling of trace elements in water bodies and understanding chemical and biological processes influencing their fate, transport and transformation. While my previous research focused on the interaction of mercury with reduced sulfur species in sediments, my current focus is on arsenic and other trace elements in the Okavango Delta. Specifically, I am interested in:Ìý

1. Understanding fundamental processes that influence the mobilization of arsenic in the Okavango Delta.ÌýÌý
2. Elucidating factors that impact the speciation, transport, and toxicity of arsenic and heavy metals in the Okavango Delta.

Results from my research can be used to carry out human health and environmental risk assessments and craft better management plans for aquatic systems.Ìý

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Environmental Chemistry

Analytical Chemistry

General Chemistry

Trace Metals in Aquatic Systems

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Trace metal biogeochemistry

Dissolved organic matter characterization

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Jolivet et al. (2023). Highly contrasted geochemical pattern in sediments of the Okavango Delta, Botswana driven by dust supply, hydrological heritage and biogeochemical reactions. Geochemistry, Geophysics, Geosystems.

Mogobe et al. (2023). Nutrient composition of common fish species in the Okavango Delta: potential contribution to nutrition security. Environment, Development and Sustainability.

Mazrui et al. (2021). Levels of heavy metals and arsenic in sediment and in Clarias gariepinus of Lake Ngami. Botswana Notes and Records, volume 53, pg 161-178.

Gondwe et al. (2021). A review of the limnology of the Okavango Delta, Botswana. African Journal of Aquatic Science.

Mazrui et al. (2016). Enhanced availability of mercury bound to dissolved organic matter for methylation in marine sediments. Geochimica et Cosmochimica Acta.Ìý