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Olivier Humphrey biography

• 2019 to present: Environmental Chemist, 51����
• 2015 to 2019: PhD in Soil Science, University of Nottingham
• 2014 to 2015: MSc Environmental Management (Distinction), University of Reading
• 2011 to 2014: BSc (Hons) Environmental Science (1st Class), University of Plymouth

Research interests

• Developing environmental forensic tracer tools and GIS-based risk modelling
• Linking food security and human health
• Elemental speciation and specialist ICP-MS/MS applications
• Laboratory QA/QC training and capacity strengthening

ORCID:��

Key papers

Humphrey, O S, Isaboke, J, Osano, O, Aura, C M, Blake, W H, and Watts, M J. 2025. Sediment and soil source apportionment using geochemical fingerprinting techniques in the Winam Gulf, Lake Victoria. Catena,��255, p.109053.

Dowell, S, Humphrey, O, Isaboke, J, Barlow, T, Blake, W, Osano, O, and Watts, M. 2024. Plutonium isotopes can be used to model soil erosion in Kenya. Environmental Geochemistry and Health,��46(9), p.338.

Aura, C M, Humphrey, O S, and Marriott, A L, et al. 2024. . Environ Geochem Health��46, 137.

Dowell, S M, Humphrey, O S, and Blake, W H. et al. 2023Ultra-Trace Analysis of Fallout Plutonium Isotopes in Soil: Emerging Trends and Future Perspectives.��Chemistry Africa,��6, 2429–2444.

Humphrey, O S, Osano, O, Aura, C M., Marriott, A L., Dowell, S M., Blake, W H, and Watts, M J. 2022. Evaluating spatio-temporal soil erosion dynamics in the Winam Gulf catchment, Kenya for enhanced decision making in the land-lake interface. Science of the Total Environment,��815, 151975.

Watts, M J, Menya, D, Humphrey, O S, Middleton, D, Hamilton, E, Marriott, A, McCormack, V. and Osano, O. 2021. Human urinary biomonitoring in Western Kenya for micronutrients and potentially harmful elements. International Journal of Hygiene and Environmental Health,��238, p.113854.

Humphrey, O S, Young, S D, Crout, N M J, Bailey, E H, Ander, E L and Watts, M J. 2020. . Environmental Science & Technology, Vol. 54 (3). 1443-1450. DOI: 10.1021/acs.est.9b02296

Watts, M J, Middleton, D R S, Marriott, A L, Humphrey, O S, Hamilton, E M, Gardner, A, Smith, M, McCormack, V A, Menya, D, Munishi, M O, Mmbaga, B T and Osano, O. 2019. . Scientific Reports, Vol. 9 (1), 14447. DOI: 10.1038/s41598-019-51075-2

Humphrey, O S, Young, S D, and Bailey, E H. et al. 2019..��Environ Geochem Health,��41, 2145–2156. https://doi.org/10.1007/s10653-019-00272-z

• Quality Management ISO17025
• ISO9001, ISO14001, ISO45001 Internal Auditing
• Safety Management in a Research Environment (IOSH)
• ICP-MS/MS
• ArcGIS and digital mapping
• Source apportionment modelling
• Security Awareness & First Aid (SAFA) HEAT training
• Overseas fieldwork

Professional associations

• Member of the Royal Society of Chemistry
• Board Member of the Society for Environmental Geochemistry and Health
• Associate Fellow Society for Environmental Geochemistry and Health
• Associate Editor Environmental Geochemistry and Health

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