Prof. Osei Akoto


Research Areas/Interests

My research is focused on the study of chemical processes in the interface between humans and their surrounding environment, within fields such as foo...~more



    1. Francis Opoku, Albert Aniagyei, Osei Akoto, Edward Ebow Kwaansa-Ansah, Noah Kyame Asare-Donkor and Anthony Apeke Adimado (2022). Effect of van der Waals stacking in CdS monolayer on enhancing the hydrogen production efficiency of SiH monolayer. Materials Advances: DOI: 10.1039/d2ma00331g
    1. Jackson Adiyiah Nyantakyi, Samuel Wiafe, and Osei Akoto (2022). Seasonal Changes in Pesticide Residues in Water and Sediments from River Tano, Ghana. Journal of Environmental and Public Health; Article ID 8997449,
    1. Collins Nimako, Takahiro Ichise, Hiroshi Hasegawa, Osei Akoto, Nathaniel O Boadi, Kumiko Taira, Kazutoshi Fujioka, Norikazu Isoda, Shouta MM Nakayama, Mayumi Ishizuka, Yoshinori Ikenaka (2022). Assessment of ameliorative effects of organic dietary interventions on neonicotinoid exposure rates in a Japanese population. Environment International; Vol,162; pp107169
    1. Sarpong, K., Acheampong, A., Darko, G. and Akoto O.(2022). Potentially toxic Metal Loads in Soils Supporting Medicinal Plants in the Ashanti Region of Ghana. Chemistry Africa;
    1. Francis Opoku,Samuel Osei-Bonsu Oppong, Albert Aniagyei, Osei Akoto, and Anthony Apeke Adimado. (2022). Boosting the photocatalytic H2 evolution activity of type-II g-GaN/Sc2CO2 van der Waals heterostructure using applied biaxial strain and external electric field. RSC Advances, 2022, 12, 7391; org/10.1007/s42250-022-00341-4
    1. Francis Opoku, Samuel Osei-Bonsu Oppong, Noah Kyame Asare-Donkor, Osei Akoto and Anthony Apeke Adimado. (2022). Enhancing the photocatalytic hydrogen generation performance and strain regulation of the vertical GeI2/C2N van der Waals heterostructure: insights from first-principles study; Energy Adv., 2022, 1, 146; DOI: 1039/D1YA00047K
    1. Briana Mwinkom Tengan and Osei Akoto Akoto (2022). Comprehensive evaluation of the possible impact of roofing materials on the quality of harvested rainwater for human consumption, Science of The Total Environment. 819
    1. Joseph Apau, Jonathan Osei-Owusu, Angela Yeboah, Opoku Gyamfi, Godfred Darko, Osei Akoto, Matt Dodd (2022). Distribution of heavy metals in sediments, physicochemical and microbial parameters of water from River Subin of Kumasi Metropolis in Ghana. Scientific African; Vol. 15; e01074
    1. Nyantakyi A. J., S. Wiafe S., Akoto O., and Fei-Baffoe, B. (2021). Heavy Metal Concentrations in Fish from River Tano in Ghana and the Health Risks Posed to Consumers; Journal of Environmental and Public Health, Article ID 5834720,;
    2. Joyce Agyemang, Eric Gyimah, Prince Ofori, Collins Nimako, Osei Akoto (2021). Pollution and Health Risk Implications of Heavy Metals in the Surface Soil of Asafo Auto?Mechanic Workshop in Kumasi, Ghana. Chemistry Africa;
    3. Collins Nimako, Anri Hirai, Takahiro Ichise, Osei Akoto, Shouta M.M. Nakayama, Kumiko Taira, Kazutoshi Fujioka, Mayumi Ishizuka, Yoshinori Ikenaka. (2021). Neonicotinoid residues in commercial Japanese tea leaves produced by organic and conventional farming methods. Toxicology Reports. 8 (2021) 1657–1664.
    4.  Osei Akoto, Albert Adopler, Hanson Edward Tepkor, and Francis Opoku (2021). A comprehensive evaluation of surface water quality and potential health\risk assessments of Sisa river, Kumasi. Groundwater for Sustainable Development 15.  100654

    5. Collins Nimako, Yoshinori Ikenaka, Osei Akoto, Kazutoshi Fujioka, Kumiko Taira, Koji Arizono, Keisuke Kato, Keisuke Takahashi, Shouta M.M. Nakayama, Takahiro Ichise and Mayumi Ishizuka (2021). Simultaneous quantification of imidacloprid and its metabolites in tissues of mice upon chronic low-dose administration of imidacloprid. Journal of Chromatography A. Journal of Chromatography A 1652 (2021) 462350.
    6. Kanton Bello Richard Danladi, Osei Akoto. (2021). Ecological and Human Health Risk Assessment of Pesticide Residues in Fish and Sediments from Vea Irrigation Reservoir. Journal of Environmental Protection, 2021, 12, 265-279.
    7. Collins Nimako, Yoshinori Ikenaka, Osei Akoto, Nesta Bortey?Sam, Takahiro Ichise, Shouta M.M. Nakayama, Kwadwo A. Asante, Kazutoshi Fujioka, Kumiko Taira, and Mayumi Ishizuka (2021). Human Exposures to Neonicotinoids in Kumasi, Ghana. Environmental Toxicology and Chemistry; Volume 00, pp. 1–13, 2021
    8. Francis Opoku, Osei Akoto, Noah Kyame Asare-Donkor, Anthony Apeke Adimado. (2021). Defect-engineered two-dimensional layered gallium sulphide molecular gas sensors with ultrahigh selectivity and sensitivity. Applied Surface Science; org/10.1016/j.apsusc.2021.150188.
    9. Eric Gyimah, Hai Xu, Xing Dong, Xuchun Qiu, Zhen Zhang, Yuanqing Bu and Osei Akoto (2021). Developmental neurotoxicity of low concentrations of bisphenol A and S exposure in zebrafish, Chemosphere; 262, 128045.
    10. Ofori, P. and Akoto, O. (2020). Production and Characterisation of Briquettes from Carbonised Cocoa Pod Husk and Sawdust. Open Access Library Journal, 7: e6029.
    11. Adiyiah Nyantakyi, Bernard Fei-Baffoe, Osei Akoto (2020). Seasonal Variations in Physicochemical and Nutrient Water Quality of River Tano in Ghana. International Journal of Environmental Chemistry 4(1): 1-12. doi: 10.11648/j.ijec.20200401.11
    12. Nyantakyi A. J., Akoto O., and Fei-Baffoe B. (2019). Seasonal variations in heavy metals in water and sediment samples from River Tano in the Bono, Bono East, and Ahafo Regions, Ghana. Environ Monit Assess, 191:570; Accepted: 6 August 2019
    13. Osei Akoto, Justice Agbeshie Teku and Diane Gasinu (2019). Chemical characteristics and health hazards of heavy metals in shallow groundwater: case study Anloga community, Volta Region, Ghana. Applied Water Science, 9:36.
    14. Thomas Kwame Boateng, Francis Opoku and Osei Akoto (2019). Heavy metal contamination assessment of groundwater quality: a case study of Oti landfill site, Kumasi. Applied Water Science (2019) 9:33.
    15. Akoto, E. Gyimah, Z. Zhan, H. Xu and C. Nimako (2019): Evaluation of health risks associated with trace metal exposure in water from the Barekese reservoir in Kumasi, Ghana. Human and Ecological Risk Assessment: An International Journal, DOI:10.1080/10807039.2018.1559033.
    16. Eric Gyimah, Osei Akoto, Zhen Zhang and Godfred Nana Wireko Gyimah (2019). Health Risk Assessment of Heavy Metal Contamination in Edible Fish Species from the Barekese Reservoir in Kumasi, Ghana; Toxicology and Applied Pharmacology Insights Volume 2 (1) pp1-7
    17. Bernard Adu-Poku, Nana Asiedu, Osei Akoto and James Ataki (2019). Modelling the distribution of arsenic and mercury in urine using chemometric tools. Cogent Chemistry, 5: 1586064
    18. Marian A. Nkansah, Moses Donkoh, Osei Akoto and James H. Ephraim (2019). Preliminary Studies on the Use of Sawdust and Peanut Shell Powder as Adsorbents for Phosphorus Removal from Water. Emerging Science Journal; (3), 1: DOI:
    19. Gyimah E., Akoto O., Mensah J.K. and Bortey-Sam N. (2018). Bioaccumulation factors and multivariate analysis of heavy metals of three edible fish species from the Barekese reservoir in Kumasi, Ghana. Environmental Monitoring and Assessment. 190:553.
    20. Osei Akoto, Nesta Bortey-Sam, Shouta M.M. Nakayama, Yoshinori Ikenaka, Elvis Baidoo1, Joseph Apau, Jemima Tiwaa Marfo, and Mayumi Ishizuka (2018). Characterization, Spatial Variation and Risk Assessment of Heavy Metals and a Metalloid in Surface Soils in Obuasi, Ghana. Journal of Health & Pollution (8), No. 19. (180902).
    21. Thomas K. Boateng, Francis Opoku and Osei Akoto (2018). Quality of leachate from the Oti Landfill Site and its effects on groundwater: a case history. Environmental Earth Sciences 77:435.
    22. Osei Akoto, Collins Nimako, Joseph Asante, David Bailey and Nesta Bortey-Sam (2018). Spatial distribution, exposure, and health risk assessment of bioavailable forms of heavy metals in surface soils from abandoned landfill sites in Kumasi, Ghana. Human and Ecological Risk Assessment: An International Journal, DOI: 10.1080/10807039.2018.1476125.
    23. Nesta Bortey-Sam, Yoshinori Ikenaka, Osei Akoto, Shouta M.M. Nakayama, Kwadwo A. Asante, Elvis Baidoo, Christian Obirikorang, Hazuki Mizukawa and Mayumi Ishizuka (2018). Association between human exposure to heavy metals/metalloid and occurrences of respiratory diseases, lipid peroxidation and DNA damage in Kumasi, Ghana. Environmental Pollution 235; pp 163-70.
    24. Nesta BORTEY-SAM, Yoshinori IKENAKA, Osei AKOTO, Shouta M.M. NAKAYAMA, Jemima T. MARFO, Aksorn SAENGTIENCHAI, Hazuki MIZUKAWA and Mayumi ISHIZUKA (2018). Sex and site differences in urinary excretion of conjugated pyrene metabolites in the West African Shorthorn cattle. The Japanese Society of Veterinary Science. doi: 10.1292/jvms.17-0410
    25. Osei Akoto, Nesta Bortey-Sam, Yoshinori Ikenaka, Shouta M.M. Nakayama, Elvis Baidoo, Yared Beyene Yohannes and Mayumi Ishizuka (2017). Contamination Levels and Sources of Heavy Metals and a Metalloid in Surface Soils in the Kumasi Metropolis, Ghana. Journal of Health & Pollution, (7), No. 15.
    26. Eric E.E. Abavare, Micheal K.E. Donkor, Samuel N.A. Doodu, Osei Akoto, Francis K. Ampong, Bright Kwakye-Aquah and Robert Nkum. (2017). Indirect phase transition of refractory nitrides compounds of TiN, ZrN and HfN crystal structure. Computational Materials Science; 137; pp75-84.
    27. Nesta Bortey-Sam, Yoshinori Ikenaka, Osei Akoto, Shouta M. M. Nakayama, Kwadow K. Asante, Elvis Baidoo, Christian Obirikorang, Jemima Marfo, Aksorn Saengtienchai, Norikazu Isoda, Collins Nimako, Hazuki Mizukawa and Mayumi Ishizuka. (2017). Oxidative stress and respiratory symptoms due to human exposure to polycyclic aromatic hydrocarbons (PAHs) in Kumasi, Ghana. Environmental Pollution; 228, pp. 311-320.
    28. Osei Akoto, Fredrick Addai-Mensah and Eric K. K. Abavare (2016). Effects of pre-household processes on the levels of chlorpyrifos residues in lettuce (Lactuca sativa). International Journal of Food Contamination. 3:13; DOI 10.1186/s40550-016-0037-3.
    29. Osei Akoto, Collins Nimako, Joseph Asante and David Bailey (2016). Heavy Metals Enrichment in Surface Soil from Abandoned Waste Disposal Sites in a Hot and Wet Tropical Area. Environmental Processes; DOI 10.1007/s40710-016-0183-x.
    30. Akoto O., Azuure A. S., and Adotey K. D. (2016). Pesticide residues in water, sediment and fish from Tono Reservoir and their health risk implications. Springer Plus 5: 1849.
    31. Nesta Bortey-Sam, Yoshinori Ikenaka, Osei Akoto, Shouta M.M. Nakayama, Jemima Marfo, Aksorn Saengtienchai, Hazuki Mizukawa, and Mayumi Ishizuka (2016). Excretion of polycyclic aromatic hydrocarbon metabolites (OH-PAHs) in cattle urine in Ghana. Environmental Pollution. Pp1-7.
    32. Nesta Bortey-Sam, Shouta M. M. Nakayama, Yoshinori Ikenaka, Osei Akoto, Elvis Baidoo, Hazuki Mizukawa and Mayumi Ishizuka (2016). Heavy metals and metalloid accumulation in livers and kidneys of wild rats around gold-mining communities in Tarkwa, Ghana. Journal of Environmental Chemistry and Ecotoxicology. Vol. 8(7), pp. 58-68, DOI:10.5897/JECE2016.0374.
    33. Jonathan N. Hogarh, Ernest Adu Gyamf, Daniel Nukpezah, Osei Akoto and Sam Adu Kumi. (2016). Contamination from mercury and other heavy metals in a mining district in Ghana: Discerning recent trends from sediment core analysis. Environ Syst Res. 5:15     DOI 10.1186/s40068-016-0067-0.
    34. Thomas Kwame Boateng, Francis Opoku, Samuel Osafo Acquaah and Osei Akoto (2016).  Groundwater quality assessment using statistical approach and water quality
      index in Ejisu-Juaben Municipality, Ghana. Environ. Earth Sci. 75:1-14 DOI 10.1007/s12665-015-5105-0.
    35. Thomas Kwame Boateng, Francis Opoku, Samuel Osafo Acquaah and Osei Akoto (2015). Pollution evaluation, sources and risk assessment of heavy metals in hand-dug wells from Ejisu-Juaben Municipality, Ghana.  Environ. Syst. Res. 4:18. DOI 10.1186/s40068-015-0045-y.
    36. Osei Akoto, Lawrence Sheringham Borquaye, Ama Samba Howard, Niib Konwuruk (2015). Nutritional and Mineral Composition of the Fruits of Solanum torvum from Ghana. International Journal of Chemical and Biomolecular Science; 1 (4), pp. 222-226.
    37. Joseph Apau, A. Acheampong, Akoto, E. Duah Boateng (2015). Physicochemical and Microbial Analysis of Water from Selected Hand-Dug Wells in Ayeduase, Kumasi. International Journal of Chemical and Biomolecular Science; 1 (4) pp. 292-296.
    38. Nesta Bortey-Sam, Shouta M. M. Nakayama, Osei Akoto, Yoshinori Ikenaka, Elvis Baidoo, Hazuki Mizukawa and Mayumi Ishizuka (2015). Ecological Risk of Heavy Metals and a Metalloid in Agricultural Soils in Tarkwa, Ghana. Int. J. Environ. Res. Public Health 12, 11448-11465; doi: 10.3390/ijerph120911448.
    39. Nesta Bortey-Sam, Shouta M. M. Nakayama, Osei Akoto, Yoshinori Ikenaka, Julius N. Fobil, Elvis Baidoo, Hazuki Mizukawa and Mayumi Ishizuka (2015). Accumulation of Heavy Metals and Metalloid in Foodstuffs from Agricultural Soils around Tarkwa Area in Ghana, and Associated Human Health Risks. Int. J. Environ. Res. Public Health 12, 8811-8827; doi: 10.3390/ijerph120808811.
    40. Osei Akoto, Divine Addo, Elvis Baidoo, Eric A. Agyapong, Joseph Apau and Bernard Fei-Baffoe (2015).  Heavy metal accumulation in untreated wastewater-irrigated soil and lettuce (Lactuca sativa). Environ. Earth Sci; DOI 10.1007/s12665-015-4640-z.
    41. Nesta Bortey-Sam, Shouta M. M. Nakayama, Yoshinori Ikenaka, Osei Akoto, Elvis Baidoo, Hazuki Mizukawa and Mayumi Ishizuka. (2015). Health risk assessment of heavy metals and metalloid in drinking water from communities near gold mines in Tarkwa, Ghana. Environ Monit Assess. 187:397 DOI 10.1007/s10661-015-4630-3.
    42. Osei Akoto, John Oppong-Otoo, and Paul Osei-Fosu (2015). Carcinogenic and non-carcinogenic risk of organochlorine pesticides residue in processed cereal-based complementary foods for infants and young children in Ghana. Chemosphere (2015). Hrrp://
    43. Osei Akoto, Sandra Garvoh, Martin Appah, and Joseph Apau, (2015). Estimation of human health risk associated with the consumption of pesticide-contaminated vegetables from Kumasi, Ghana; Environmental Monitoring and Assessment. DOI: 10.1007/s10661-015-4471-0.
    44. Darko, G., Boakye, S., Akoto, O., Rammika, M. and Gyamfi, O. (2015). Distribution and potential risks of heavy metals in fish, water and sediment. Environ. Sci. Indian J. 11, 74–82.
    45. Nesta Bortey-Sam, Shouta M.M.Nakayama, Yoshinori Ikenaka, Osei Akoto, Elvis Baidoo, Yared Beyene Yohannes, Hazuki Mizukawa and Mayumi Ishizuka (2015). Human Health risks from metals and metalloid via consumption of food animals near gold mines in Tarkwa, Ghana:  Estimation of the daily intakes and target hazard quotients (THQs). Ecotoxicology and Environmental Safety. 111; 160–167.
    46. Godfred Darko, Augustine Faanu, Osei Akoto, Francis Atta-Agyeman, Mary Ann Aikins, Bernice Agyemang and Ali Ibrahim (2015). Assessment of the activity of radionuclides and radiological impacts of consuming underground water in Kumasi, Ghana. Environ. Earth Sci. 73:399–404.
    47. Osei Akoto and Ernest Abankwa (2014). Evaluation of Owabi Reservoir (Ghana) water quality using factor analysis. Lakes and Reservoirs: Research and Management 19: 174–182.
    48. Godfred Darko, Augustine Faanu, Osei Akoto, Akwasi Acheampong, Eric Jude Goode and Opoku Gyamfi (2015). Distribution of natural and artificial radioactivity in soils, water and tuber crops. Environ. Monit. Assess. 187: 339 DOI 10.1007/s10661-015-4580-9.
    49. Osei Akoto, Opoku Gyamfi, Godfred Darko and Victor Rex Barnes (2014). Changes in water quality in the Owabi water treatment plant in Ghana. Appl Water Sci DOI 10.1007/s13201-014-0232-4.
    50. Nesta Bortey-Sam, Yoshinori Ikenaka, Osei Akoto, Shouta M. M. Nakayama, Yared Beyene Yohannes, Elvis Baidoo, Hazuki Mizukawa and Mayumi Ishizuka (2014). Levels, potential sources and human health risk of polycyclic aromatic hydrocarbons (PAHs) in particulate matter (PM10) in Kumasi, Ghana. Environ Sci Pollut Res DOI 10.1007/s11356-014-4022-1.
    51. Opoku Frances and, Akoto Osei (2014) Antimicrobial and Phytochemical Properties of Alstonia Boonei Organic Chem. Curr. Res. 1:137. doi: 10.4172/2161-0401.1000137.
    52. Nesta Bortey-Sam, Yoshinori Ikenaka, Shouta M.M. Nakayama, Osei Akoto, Yared Beyene Yohannes, Elvis Baidoo, Hazuki Mizukawa, Mayumi Ishizuka (2014). Occurrence, distribution, sources and toxic potential of polycyclic aromatic hydrocarbons (PAHs) in surface soils from the Kumasi Metropolis, Ghana. Science of the Total Environment 496 pp.471–478.
    53. Akoto O, Bortey-Sam N, Nakayama SMM, Ikenaka Y, Baidoo E, Yohannes YB, Mizukawa H, Ishizuka M (2014). Distribution of Heavy Metals in Organs of Sheep and Goat Reared in Obuasi: A Gold Mining Town in Ghana. Int. J. Environ. Sci. Toxic. Vol. 2(2):81-89.
    54. Osei Akoto and Ernest Abankwa (2014). Heavy Metals Contamination and Speciation in Sediments of the Owabi Reservoir. Journal of Science and Technology, 3 (4) pp. 125-221.
    55. Akoto, O., Eshun, F. B., Darko, G. and Adei, E. (2014). Concentrations and Health Risk Assessments of Heavy Metals in Fish from the Fosu Lagoon. Int. J. Environ. Res., 8(2):403-410.
    56. Osei Akoto and Anthony Osei-Brefoh (2014). Quality of Oleoresinous Wood Varnish Prepared using Resin Synthesized from Tannin Extracted from Stem Bark of Khaya senegalensis. Asian Journal of Applied Sciences, 2(1):61-66.
    57. Elvis Baidoo, James H. Ephraim, Godfred Darko, Osei Akoto. (2014). Potentiometric studies of the acid–base properties of tropical humic acids. Geoderma 217–218, pp.18–25.
    58. Bortey-Sam N, Akoto O, Ikenaka Y, Nakayama S. M, and Ishizuka M. (2013). Determination of ben[a]pyrene levels in ambient air and sources of PAHs using a diagnostic ratio method in Ghana. The Japanese journal of Veterinary Research. 16. Suppl:S, 72-4(PMID:23631159).
    59. Jemima T. Marfo, Osei Akoto, Yoshinori Ikenaka, Shouta M. Nakayama, Baidoo Elvis and Mayumi Ishizuka. (2013). Determination of metals in organs of Clarias gariepinus, Heterobranchus bidorsalis and chrysichthys nigrodigitatus from the Offin river at Dunkwah-on-offin Ghana. The Japanese journal of Veterinary Research. 61. Suppl:S 69-71.
    60. Akoto, O., Andoh, H., Darko, G., Eshun, K. and Osei-Fosu, P. (2013). Health risk assessment of pesticides residue in maize and cowpea from Ejura, Ghana. Chemosphere 92(1), 67-73.
    61. Osei Akoto, Belinda Akokor Lawson and Jemima Tiwaa Marfo (2012). Potentials of Synedrella nodiflora and Sida fallax growing naturally around an abandoned railway station for phytoextraction of heavy metals; Journal of Environmental Chemistry and Ecotoxicology Vol. 4(10), pp. 188-194. DOI: 10.5897/JECE12.025.
    62. Adu-Kumi, S., Kareš, R., Literák, J., Bor?vková, J., Yeboah. P. O., Carboo, D., Akoto, , Darko, G., Osae S. and Klánová, J. (2012). Levels and seasonal variations of organochlorine pesticides in urban and rural background air of southern Ghana. Environ. Sci. Pollut. Res. DOI 10.1007/s11356-012-1013-y.
    63. Akoto, O., Darko, G and Nkansah, M. A. (2011). Chemical Composition of Rainwater over a Mining Area in Ghana. J. Environ. Res., 5(4):847-854.
    64. Osei Akoto, Appiah, and Owusu Boadi, N. (2011). Physicochemical Analysis of Roof Runoffs from the Obuasi Area. Water Practice & Tech. doi:10.2166/wpt.2011.003.
    65. Akoto, O., Wi-Afedzi, T., Aidoo, G. and Apau, J. (2010). Evaluation of water from Bokro stream for irrigation and its effect on soil. Sci. and Tech., 30, (2); pp 135-141.
    66. Osei Akoto, Theophilus Nicolas Bruce and Godfred Darko (2010). Chemical and   biological characteristics of streams in the Owabi watershed. Monit. Assess. 161: 413-422; DOI 10.1007/s10661-009-0757-4.
    67. Akoto O. and Adiyiah J. (2008). Dissolved nitrogen in drinking water resources of some farming communities in Ghana. J. Environ. Sci. Tech. 2 (2), 031-035.
    68. Darko G., Akoto, O., Oppong, C. (2008). Persistent organochlorine pesticide residues in fish, sediments and water from Lake Bosomtwi, Ghana. Chemosphere 72, 21–24.
    69. Akoto O., Oppong I. V., Addae-Mensah I., Waibel R, and Achenbach H. (2008) Isolation and Characterization of Dipeptide Derivative and Phytosterol from Capparis tomentosa. Res. & Essay 3 (8): 355-358.
    70. Akoto O., Ephraim J. H. and Darko, G. (2008). Heavy metals pollution in surface soils in the vicinity of abandoned railway servicing workshop in Kumasi, Ghana. J. Environ. Res., 2(4): 359-364.
    71. Akoto, O., Bruce, T. N. and Darko, G. (2008). Heavy metals pollution profiles in streams serving the Owabi reservoir. J. Environ. Sci. Tech., 2 (11): 354-359.
    72. Darko, G., Akoto, O., (2008). Dietary intake of organophosphorus pesticide residues through vegetables from Kumasi, Ghana. Food and Chemical Toxicology, 46; 3703- 3706.
    73. Akoto, O. and Adiyiah, J. (2007). Chemical analysis of drinking water from some communities in the Brong Ahafo Region. Int. J. Environ.Sci. Tech., 4 (2) 211-214.
    74. Asomaning, W.A., Otoo, E., Akoto, O., Oppong, I.V., Addae-Mensah, I., Waibel, R. and Achenbach, H. (1999). Isoflavones and Coumarins from Millettia thonningii. Phytochemistry 51, 937-941.

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