+233 (0) 302 962 720

Box LG 209, Legon, Accra

Dr. Benedicta Yayra Fosu-Mensah

Senior Research Fellow
Dr. Benedicta Yayra Fosu-Mensah is an Ecology and Natural Resources Management scientist technically competent in applying the latest research methods and tools in modelling environmental issues, food crops production and environmental quality analysis (pollution). She holds PhD degree in Ecology and natural Resources Management (Soil Science) from University of Bonn, Germany and KNUST. She has over 15 years’ experience in research, teaching at the graduate level, workshop facilitation, student supervision and mentoring. Dr. Fosu-Mensah is a Senior Research Fellow with the Institute for Environment and Sanitation Studies, University of Ghana. She has authored several peer-reviewed journal articles and co-authored a number of book chapters. Her research interest areas are climate change impact assessment and adaptation, environmental quality assessment (environmental pollution), site specific nutrient management, Land-use/land-cover change, and sanitation and public health. She has worked on several community based and regional research projects, some with local and International Institutions.

Educational History

  • Ph.D in Ecology and Natural Resource Management (Soil Science); University of Bonn, Germany and Kwame Nkrumah University of Science and Technology, Kumasi.
  • M. Sc.  Agricultural Science and Resource Management in the Tropics and Subtropics (ARTS); University of Bonn, Germany.
  • B.Sc. (Hons.) in Agricultural Technology; University for Development Studies, Tamale

 Research interest

  • Climate change impact assessment, and adaptation
  • Climate change and the urban poor
  • Environmental quality assessment (heavy metal and pesticides pollution)
  • Sanitation
  • Site Specific nutrient management
  • Land-use / land-cover change on soil moisture, runoff and nutrients

Current Research Projects and Activities

  • Associate, West Africa Regional Hub of the African Research Universities Alliance, Centre of Excellence in Climate and Development (ARUA-CD
  • Early warning system for climate change (CLIM-WARN);  Partnership between UNDP and University of Ghana, implemented by IESS (2013 – 2015). Funded by German Government.
  • Crude oil drilling: Onshore environmental impact assessment of the Jubilee oil field of the Western region of Ghana. Funded by ORID, University of Ghana (2014 – 2016).
  • Re-optimizing of operations of the Akosombo and Kpong Dams on the Volta River in Ghana to restore downstream livelihood and ecosystem: A collaborative project with the National Heritage Institute (USA) and Ghana Water Resource Commission.- Funded by Africa Development Bank (2013 -2014).
  •  Development of National Sanitation Standards for Ghana. Funded by Ministry of Environment, Science, Innovation and Technology (MESIT) (2014)
  • Utilization of Organic Waste for Improvement of Agricultural Productivity (UOWIAP). -Funded by Ministry of Foreign Affairs, the Netherlands, through NWO-WOTRO 
 PhD Students' Supervision
  1. Agyeman Margaret: Climate change and cashew (Anacardium Occidentale) productivity and assessment of adaptation strategies in the Bono region of Ghana (On-going).
  2. Bosompem Ohene Asa: Carbon Sequestration and yield improvement in smallholder farm systems under a climate change in Mid Ghana (On-going).
  3. Anuga Samuel: Greenhouse gas (GGH) mitigation potential of climate-smart agriculture options promoted in climate-smart villages (CSVs) of Ghana. (On-going).
  4. Henry Kwabena Kokofu: Causes and effects of illegal mining in Ghana; Policy and legal perspectives (On-going).
  5. Jennifer Ayamga: Biophysical and Socioeconomic determinants of cropping systems production (Completed).
  6. Ademin Benjamin: Land use changes, adaptation strategies of farmers and food sustainability in the Aburi-Nsawam enclave within the southern forest savannah transition zone of Ghana (On-going).
  7. Omari Stephen: Empirical Analysis of vulnerability, adaptation responses and wellbeing of smallholder farmers to climate risks in Upper West Region, Ghana (Completed).
  8. Armah Nathaniel: Implication of Small scale mining on the environment and livelihoods of people within the East Akim Municipality area (On-going).
Number of Mphil Students' Supervision
  • 21 Students

 List of Publications


  1. Modelling maize (Zea mays L.) productivity and impact of climate change on yield and nutrient utilization in sub-humid Ghana. Ecology and Development Series Bd. 87. ISSN 1864-0443


Book Chapters

  1. Yirenya-Tawiah D, Annang, T., Ofori, BD, Fosu-Mensah, B., Lawson, E.T., Yeboah, R., Owusu-Afriyie, K., Abudey, B.,Annan, T,  Datsa, C. and Gordon, C. (2020). Urban Waste as a Resource for Development: Utilization of Organic Waste to Improve Agriculture Productivity in Accra, Ghana.  In Hiroshan et al (Ed), Organic Waste Composting through Nexus Thinking: Practices, Policies, and Trends Springer, ISBN 978-3-030-36283-6, DOI 10.1007/978-3-030-36283-6

  2. Yirenya-Tawiah, D., Fosu-Mensah, B. Y., Gordon, C and Nukpezah Daniel (2017) Pubic health impact of Dam Re-optimisation and re-operation; the case of the lower Volta basin. Dams, Development and Downstream communities In: Ntiamoa-Baidu, Y., Ampomah, B. Y and Ofosu, E. A. (eds). implications for re-optimising the operations of the Akosombo and Kpong dams in Ghana. Digibooks Gh. Ltd., Tema, Ghana.
  3. MacCarthy, D. S., Vlek, P. L. G., Fosu-Mensah, B. Y. (2012).  The Response of Maize to N Fertilization in a Sub-humid Region of Ghana; Understanding the Processes using a Crop Simulation Model.  In: J. Kihara, G. Hoogenboom and A. Bationo (eds.), Improving Soil Fertility Recommendation in Africa using Decision Support for Agro-technological Transfers (DS SAT), DOI 10, 1007/978 - 94 - 007 - 2960 - 5 - 5, Springer Science + Business Media B. V.

List of Peer Review Journal Articles

  1. Doe, E. K., Attua, E. M., Dogbatse, J. A., Fosu-Mensah, B. Y.  Advancing cocoa soil security governance with geovisualization of the conditions and capabilities of farm soils in the Cocoa Districts of Ghana. Journal of Soil security (under review).
  2. Fosu-Mensah, B. Y., Elvis D. Okoffo and Michael Mensah. Assessment of farmers’ knowledge and pesticides management in cocoa production in Ghana. International journal of Advanced and Applied Sciences. (Accepted).

  3. Darko, G., Obiri-Yeboah, S., Takyi, S A.,  Amponsah, O.,  Borquaye, L. S., Lydia Otoo Amponsah, L. O., Fosu-Mensah, B. Y. Urbanizing with nature: pollution effects of human activities on the quality of water bodies in the Kumasi metropolis of Ghana. Environmental Monitoring and Assessment (accepted).
  4. Mensah, M., Villamor, G. B., Fosu-Mensah, B. Y., Vlek. P.L.G (2021)Exploring the Gender-Specific Adaptive Responses to Climate Variability: Application of Grazing Game in the Semi-Arid Region of Ghana. MDPI Agriculture 2021, 11 (11), 1-20.

  5. Fosu-Mensah, B. Y., Ofori, A., Ofosuhene, M., Ofori-Attah, E., Nunoo, F. K. E., Tuffour, I., Gordon, C., Arhinful, D., Nyarko, A. K., Appiah-Opong, R. (2021). Bioaccumulation of Toxic Metals in Commercially Valuable Fish from the Western Region of Ghana. Universal Journal of Public Health, 9(6), 1-10.
  6. Fosu-Mensah, B. Y., Adjovu, S. M., Annang, T. A., Mensah, M. (2021). Assessing farmers’ indigenous knowledge of soil quality and soil fertility management practices in Ghana; A case study of crop farmers in the Ada West District. Journal of Applied and Natural Science. 13(3), 830- 839.
  7. Ofosu, F., Fosu-Mensah, B. Y., Nukpezah, D., Mensah, M. (2021). Concentrations of heavy metals in two fish species (Cynoscion regalis and Pomatomus saltatrix) from an oil drilling area in Western Coast of Ghana and public health risk assessment. Journal of Applied and Natural Science. 13(2).

  8. MacCarthy, D. S.,  Adam, M., Freduah, B. S., Fosu-Mensah, B. Y.,  Ampim, P. A. Y.,  Mohammed, Ly, M.,  Traore, P. S.,  Adiku, S. G. K. (2021). Climate change impact and variability on cereal productivity among smallholder farmers under future production systems in West Africa. MDPI Sustainability 13(9),  (5191), 1 – 22.
  9. Fosu-Mensah, B. Y., Adabie, D. F., Johnson, P. N. T and Mensah, M. (2021). Occupational and environmental health hazards associated with food processing and the use of personal protective equipment: A case study of Gari processing in southern Ghana. Journal of Applied and Natural Science. 13(1), 230 - 237.
  10. Ayamga, J., Pabi., O. Barnaba, A. B., Fosu-Mensah, B. Y., and Codjoe, S. N. A. (2021). Annual and intra-annual climate variability and change in the Volta Delta, Ghana.  Environmental Monitoring and Assessment 193:233.
  11. Appiah-Opong, R., Ofori, A., Ofosuhene, M., Ofori-Attah, E., Nunoo, F. K.E., Darko, G., Tuffour, I., Gordon, C., Arhinful, D. K., Nyarko, A. K. and Fosu-Mensah, B. Y. (2021). Heavy metals concentration and pollution index (HPI) in drinking water along the southwest coast of Ghana. Journal of Applied Water Science 11(3), 1-10.
  12. Mensah, M. and Fosu-Mensah, B. Y. (2020). Agriculture and gender roles in the semi-arid region of Ghana. West African Journal of Applied Ecology, 28(1), 145 – 158.
  13. Mensah, M., Vlek, P. L., & Fosu-Mensah, B. Y. (2020). Gender and climate change linkages in the semi-arid region of Ghana. GeoJournal, 1-14.
  14. Fosu-Mensah, B.Y., Manchadi, A and Vlek, P. L. G (2019). Impacts of climate change and climate variability on maize yield under rainfed conditions in the sub-humid zone of Ghana: A scenario analysis using APSIM. West Africa Journal of Ecology, vol 27(1). 
  15. Adigbli, D. M., Anning, A. K., Adomako, J.s K., and Fosu-Mensah B. Y. (2018). Effects of Broussonetia papyrifera invasion and land use on vegetation characteristics in a tropical forest of Ghana.  J. Forestry. Research.
  16. Fosu-Mensah, B. Y, Ofori, A., Ofosuhene, M., Ofori-Attah, E., Nunoo, F. K.E., Darko, G., Tuffour, I., Gordon, C., Arhinful, D. K., Nyarko, A. K. and Appiah-Opong, Regina (2018). Assessment of Heavy Metal Contamination and Distribution in Surface Soils and Plants along the West Coast of Ghana West Africa Journal of Ecology (SI).
  17. Fosu-Mensah, B. Y., Addae, E., Yirenya-Tawiah, D. and Nyame F.(2017). Heavy metals concentration and distribution in soils and vegetation at Korle Lagoon area in Accra, Ghana., Cogent Environmental Science (3) 1405887. 1-14
  18. Abass, R., Mensah, A., & Fosu-Mensah, B. (2018). The Role of Formal and Informal Institutions in Smallholder Agricultural Adaptation: The Case of Lawra and Nandom Districts, Ghana. West African Journal of Applied Ecology, vol. 26(SI). 
  19. Okoffo, E. D., Fosu-Mensah, B. Y. and Gordon, C. (2017). Contamination levels of organophosphorus and synthetic pyrethroid pesticides in cocoa beans from Ghana. Food Control, 73 (2017) 1371-1378. 
  20. Fosu-Mensah, B. Y. and Mensah, M. (2016). The effect of phosphorus and nitrogen fertilizers on grain yield, nutrient uptake and use efficiency of two maize (Zea mays L.)  varieties under rain fed condition on Haplic Lixisol in the forest-savannah transition zone of Ghana. Environmental Systems Research, 5 (22), 1- 17.
  21. Fosu-Mensah, B. Y., Okoffo., E. D., Darko, G. and Gordon, C. (2016b). Assessment of organochlorine pesticide residues in soils and drinking water sources from cocoa farms in Ghana. SpringerPlus, 5 (869), 1-13.
  22. Okoffo, E. D., Fosu-Mensah, B. Y., and Gordon, C (2016a). Persistent organochlorine pesticide residues in cocoa beans from Ghana, a concern for public health. International Journal of Food Contamination, 3 (5), 1-11
  23. Okoffo, E. D., Denkyirah, E. K., Adu, D. T. and Fosu-Mensah, B. Y.  (2016). A Double-Hurdle Model estimation of cocoa farmers’ willingness to pay for crop insurance in Ghana. SpringerPlus, 5 (873), 1-19.
  24. Adama, M. Esena, R. Fosu-Mensah, B. and Yirenya-Tawiah, D. (2016). Heavy Metal Contamination of Soils around a Hospital Waste Incinerator Bottom Ash Dumps Site. Journal of Environmental and Public Health, (2016), 1-6 Article ID.
  25. Fosu-Mensah, B. Y., Okoffo., E. D., Darko, G. and Gordon, C. (2016a). Organophosphorus pesticide residues in soils and drinking water sources from cocoa producing areas in Ghana. Environmental System Research, 5 (10), 1-12.
  26. Okoffo, E. D., Mensah, M. and Fosu-Mensah, B. Y. (2016). Pesticides exposure and the use of Personal Protective Equipment by cocoa farmers in Ghana. Environmental system Research, 5 (17), 1-15.
  27. Fosu-Mensah, B. Y., Okoffo, E. D. and Mensah, M. (2016). Synthetic Pyrethroids Pesticide Residues in Soils and Drinking Water Sources from Cocoa Farms in Ghana. Environment and Pollution, 5 (1), 60-72. 
  28. Padgham, J.,Abubakari, A., Ayivor, J., Dietrich, K., Fosu-Mensah B., Gordon, C., Habtezion, S., Lawson, E., Mensah, A., Nukpezah, D., Ofori, B., Piltz, S., Sidibé, A., Sissoko, M., Totin, E., Traoré, S., Dazé, A., and Echeverría, D. (2015) Vulnerability and adaptation to climate change in the Semi-Arid Regions of West Africa. ASSAR working paper. 
  29. Wahabu, S., Fosu-Mensah, B. Y. and Nyame, F. K. (2015). Impact of Charcoal Production on Physical and Chemical Properties of Soil in the Central Gonja District of the Northern Region, Ghana. Journal of Environment and Natural Resources Research, 5 (3), 11 - 18. 
  30. Fosu-Mensah, B. Y., Vlek, P. L. G., Günther, M. and Mensah M. (2015). The Influence of Azolla pinnataon Floodwater Chemistry, Grain Yield and Nitrogen Uptake of Rice in Dano, Southwestern Burkina Faso. Journal of Agricultural Science, 7 (8), 118 - 130.
  31. Mensah, M., Fosu-Mensah, B. Y. and Yirenya-Tawiah, D. (2014). Assessing public perception on beach quality for Ecotourism development; A case study of Kokrobite beach in the Greater Accra Region, Ghana. Journal of Environment and Earth Science, 4 (11), 58 – 66.
  32. Fosu-Mensah, B. Y., McCarthy, D. S. Vlek, P. L. G. and Safo, E. Y. (2012). Simulating impact of seasonal climatic variation on the response of maize (Zea mays L.) to inorganic fertilizer in sub-humid Ghana. Nutrient Cycling in Agroecosystems Journal, 94 (2), 255-271.
  33. Fosu-Mensah, B. Y., Vlek, P. L. G., and MacCarthy, D. S.  (2012). Farmers' Perception and Adaptation to Climate Change - A Case Study in Sekyedumase District in Ghana. 2012, Journal of Environment, Development and Sustainability14 (4), 495–505.
  34. Rafia Afroz, Rulia Akhtar, AZ Ibrahim, MM Alam, C Siwar, AH Jaafar, B Talib, KO Salleh, Siwar, B Talib, M Mokhtar, ME Toriman, B. Y Fosu-Mensah, et al (2012). Micro-level analysis of farmers adaptation to climate change in Southern Africa. Asian Journal of Agricultural Research, 11 (4) 130-135.
  35. Dei, H. K., Fosu, B. Y.  Fordjour, G. E. and Otchere, O. (2002). Processed Product from Cassava and Blood (PPCB); an alternative low cost feed for Broiler Chickens. Development Spectrum, 2(1), 58-67.

Working/Discussion Papers

  1. Aryee, A. A., Fosu-Mensah, B. Y. and Nukpezah, D. (2017). Aaron An assessment of heavy metals in contaminated surface soil at auto-mechanic workshops within the Accra metropolis, Ghana. Conference paper; Dialogue on Sustanibility and Environmental Management in Accra , Ghana. Feb.15-16 2017. 


  • ESCI 612: Forest Resource Management
  • ESCI 701: Environmental management
  • ESSC 602: Development and Sustainability
  • ESSC 609: Food Security and Sustainable Agriculture
  • ESCI 702: Emerging Environmental Issues for the 21st century
  • CCSD 605: Environmental sustainability and impact Evaluation