Exposure Assessment of Glyphosate in Selected Grains Grown in Gombe State, Nigeria and the Potential Health Risk on Consumption

Abstract

Glyphosate widely accepted to be biodegradable and ecofriendly are arguably found to be ambiguous having pinged its footprints in some environmental and health related complications. This herbicide is used widely in Gombe State, Nigeria to mitigate the growth of transgenic plants, and control weeds infestation in farmlands despite being banned in must countries. Thus present a potential risk to the public that still use the formulations as herbicides. Therefore, in this study, we examined the residual level of glyphosate in the rice, beans, maize, millet and sorghum obtained from Gombe, Kaltungo and Funakaye Local Government Areas (LGA) of Gombe State and further conducted the human health risk assessments on consumption. The samples were purified and subjected to extraction and clean-up procedures using water/acetonitile (50/50). The results quantified using Gas chromatography coupled with mass spectrophotometer revealed the average concentrations of glyphosate residues in the samples collected from the three LGA to follow the increasing order; 0.03692˃0.01501˃0.01413 ppm respectively. However, the concentrations were all observed to be lower than the Minimum Residual Limits (MRLs) set by the WHO/FAO. The non-carcinogenic health risk analysis taken from the data, having values of ˂1, suggest that the residues do not pose any disenable health risk to the public on consumption but further suggest the exposed children and adults populations are at risk of potential carcinogenic-related complications based on the respective measured Life Time Total Cancer Risk Index (TCRI) of 1.81 x 10-3 and 2.25 x 10-4. The Correlation coefficient established for the samples locations reveals no significant correlation between the pairs of LGAs. From the foregoing results, effective measures and regulations on the use of glyphosate-based herbicides should be instituted.

Country : Nigeria

1 Zira, S. P.2 Bwatanglang, I. B.3 Audu, Haruna Sympa

  1. Department of Pure and Applied Chemistry, Adamawa State University, Mubi, Nigeria
  2. Department of Pure and Applied Chemistry, Adamawa State University, Mubi, Nigeria
  3. Department of Chemistry, Federal College of Education (Technical), Gombe, Nigeria

IRJIET, Volume 8, Issue 10, October 2024 pp. 105-113

doi.org/10.47001/IRJIET/2024.810016

References

  1. Bwatangland I. B. (2019). Diclorvos-Mediated Heavy Metal Uptake in Leafy Vegetables and Potential Health Risk on Consumption. London Journal of Research in Science: Natural and Formal, 19(3):15-24
  2. Ghoghovwia, O. A. & Izah, S. C. (2018). Toxicity of Glyphosate Based Herbicides to Fingerlings of Heterobranchis bidorsalis. International Journal of Avian and Widelife Biology. 3(5):397-400. Dio:10.15406/ijawb.2018.03.00127
  3. Bawa, S., Abba, B., Umar, M. I., Tafida, S. Y., Abubakar, S. U., Kimangh, N., Talanu, P. & Madubu, D. (2015). A Review of Pesticide Poisoning: Far Reaching Implications and the Need for Synergistic Policy Implementation in Gombe, North Eastern, Nigeria. International Journal of Life Science. 5(2): 63-67.
  4. Burt, R. (2019). Biodx C. E. O. Panelist at Chemical Industry Conference on the Future of Chemical Industries in the New Age, Johannesburg on 15 August, 2019.
  5. Bwatanglang, I. B., Alexander, P. & Timothy, N. A. (2019). Vehicle-derived heavy metals and human health risk assessment of exposure to communities along Mubi-Yola highway in Adamawa State (Nigeria). Journal of Scientific Research & Reports. 23(1): 1-13.
  6. Chikamso, C. A. (2018). Farmers`s Perception of the Health Effects of Agrochemicals in South East Nigeria. Journal of Health Pollution. 8(19): 43.
  7. Gomes, G. L. G. C., Carbonari, C. A., Velini, E. D., Trindade, M. L. B. & Silva, J. R. M. (2015). Extraction and Simultaneous Determination of Glyphosate, AMPA and Compounds of Shikimic Acid Pathway in Plants. Universide Estadual Paulista “Julio de Mesquita Filho”, Faculdade de Ciencias Agronomicas, Botucatu-SP, Brasil, gomes.gigc@gmail.com
  8. Hindu Business Line (HBL) (2019). A Business Line Editorial Article: A Weedicide Roundup. Available at http://www.thehindubusinessline.com. retrieved 23 September 2019.
  9. Hu. X., Zhang. Y. Ang. Z., Wang. H., Swa. Y. & Wu. J. (2012). Bioavailability and Health Risk of Arsenic and Heavy metals: Cd, Co, Cr, Ni, Pb, Zn, in JSP and PM 2.5 in Nanging. China Atmosphere Environment. 57: 146-152.
  10. IARC. (2015). International Agency for Research on cancer. Carcinogenicity of Tetrachlovinphos, Parathion, Malathion, Diazinon, and Glyphosate. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans, 112: 1-2.
  11. JMPR (2006). Glyphosate. In Joint FAO/WHO meeting on Pesticides Residues in Food- 2004. Toxicological Evaluation Report. No. WHO/PES/061. Geneva. World Health Organization. Pp. 95-169. Available at hppt://www.wbqibdoc.who.int/publications/200/69241665203.engpdf? Accessed 12 November, 2019.
  12. Kolakowaski, B. M., Leigh, M., Angella, M., Andrea, L., Henri, B., Jeffrey, M. & vande, R. (2020). Analysis of Glyphosate Residues in Foods from the Canadian Retail Markets between 2015 and 2017. Journal of Agric Food Chemistry. 68(18):805-813
  13. Kruger, M., Schledorn, P., Schrodl, W., Hoppe, H., Lutz, W. & Shehata, A. A. (2014). Detection of Glyphosate residues in Animals and Humans. Journal of Environmental and Analytical Toxicology. 4(2): 1-5.
  14. Liu. K., Shang. Q. & Wan. C. (2018). Source and Health Risks of Heavy Metal in PM. 2J in a Campus in a Typical Suburb area of Tanyuan, North China.
  15. Mesnage, R., Bernay, B. & Seralini, G. E. (2013).Ethoxylated Adjuvants of Glyphosate-based Herbicides are active Principles of Human Cell Toxicity. Toxicology, 313(2): 122-128.
  16. Map of Gombe State (MGS) (2020). http//www.britanica,com>plane>Gombe-Nigeria. Retrieved on 29 January, 2020.
  17. Modibbo, D. & Aminu, M. (2018). Agrochemical Usage by Farmers in Central Senatorial District of Gombe State, North Eastern Nigeria. African Journal of Agric and Food Science. 1(1): 13-18.
  18. Micheal, C. H. (2019). Cancer Association of South Africa (CANSA): Fact Sheet and Position Statement on Glyphosate. Available on-line at https://www.cansa.org.za/file/2019/04/fact-sheet-and-position-statement-on-Glyphosate-web-April-2019.pdf.
  19. NAN (2018). News Agency of Nigeria. Toxic Effects of Glyphosate. Available at http://www.gmorevealed.com/the-toxic-effect-of-glyphosate. Retrieved on 6 September, 2018.
  20. National Human Development Report (NHDR) (2018). Achieving Human Development in North East Nigeria.
  21. Ogah, C. O., Tethy, J., Coker, H. B. & Adepoju-Bello, A. A. (2012). Ana;lysis of Organochlorine Pesticides Residues in Maize and Beans fro Markets in Lagos State, Nigeria. African Journal of Pharmacy. 23(1): 60-68.
  22. Olga, I. S. (2019). LC/MS/MS Method for determination of AMPA, glyphosate in cereals. Principlal R&D Scientist, Reporter, U.S. 3(4): 4.
  23. Orsi, L., Delabre, L., Monnerau, A., Delval, P., Berthou, C. & Fenaux, P. (2009). Occupational Exposure to Pesticides and Lymphoid Neoplasm among Men: Results of French Case-Control Study. Occupational and Environmental Medicine. 66(5): 291-298.
  24. Payne-Sturges, D. C. (2004). Personal Exposure Melt Risk Assessment: A Comparism of Measured and Modeled Exposures and Risk in an Urban Community. Environmental Health Perspective. 112(5): 589-601.
  25. Peng. X., Shi. G. C., Liu. G. R., Xu. J., Tian. Y. Z., Zhang. Y. F., Feng. Y. C. & Ressel. A. G. (2017). Some Heavy Metal Health Risk (HMHR) Quantification from Simus in a Southern City of Chin, using an ME 2-HMHR model. Environmental Pollution. 22: 335-355.
  26. Pieniazek, R. Khmaszyk, P. & Kubacki, T. (2014). The Effect of glyphosate-based Herbicides on Aquatic Organisms. A case study.  Limnological Review. 13 (4): 215-220.
  27. Solomon, K. (2016). Glyphosate in the General Population and in Applicators: Actual Review of Studies on Exposure. Critical Review in Toxicology. 6: 21-27. Dok: 101080 10408444.
  28. Stacy, M. (2019). Glyphosate Fact Sheet: Cancer and other Concerns. Available at https://muckrack.com/stacy malkan article. Accessed on-line on 24 October 2019.
  29. TPG (2019).Toxicology Profile for Glyphosate, Draft for Public Comment. National Centre for Environmental Health and Agency for Toxic Substances and Disease Registry. April, 2019.
  30. Urowaymo, J. (2019). NAFDAC to ban Paraquat, atrazine Products in Nigeria; Vanguard, available@ http//www.fao.org/flieadmin/levyutilities/agrohome/document/pesticides/JMPR/Evaluation97/Glyphosate.PDF. Accessed 3 October, 2019.
  31. USEPA (1989). United States of America Environmental Protection Agency. Glyphosate, Additional Histopathological Evaluations of Kidneys in the Chronic Feeding Study of Glyphosate in Mice. Available@ http://www.epa.gov/pesticides/chemical/search/chemical/foia/cleared-reviews. Accessed 3 October, 2019
  32. Uzoagulu, A. E. (1998). Practical Guide to Writing Research Project Reports in Tertiary Institutions. Nigeria, Enugu. John Jacobs Classic Publishers Ltd. Pp 61-77.
  33. Venessa, A. (2016). Nigerian Say No to Monsanto`s GM Crops. Ecologist: The Journal for Post Industrial Age.
  34. Vinatoru, M. (2001). An Overview of the Ultrasonically Assisted Extraction of Bioactive Principles from Herbs. Ultrsound Sonochem. 8(3): 303-313.
  35. Vincenzo, T., Ioannis, A. K., Paolo, V. & Elena, C. R. (2018). Critical Review of the Effects of Glyphosate Exposure to the Environment and Humans through the Food Supply Chain. Sustainability. 10(950): 2-20. Available online: www.mdpi.com/journal/sustainability. Accessed on 23 October 2019.
  36. WHO (1996). Data Sheets on Pesticides: Glyphosate, International Program on Chemical Safety, World Health Organization, Food and Agricultural Organization. Geneva, Swizaland.
  37. Xu, J., Shayna, S., Gordon, S., Weiqun, W. & Yonghui, L. (2019). Glyphosate contamination in grains and foods: An overview. Department of Food Nutrition Dietetics and Health, Manhattan, KS, 66505, USA.
  38. Yaya,  L., Xiaoyun, Y., Zhi, D., Qin, W. Houmei, L. & Jie, L. (2017). Heavy Metal Concentration and Health Risk Assessment in the Vicinity of a Tailing Pond in Guangdong, China. International Journal of Environmental Research and Public Health. 14; 2-17.
  39. Yasushi, H.; Mamani, F., Kengi, S. & Yasuo, H. (2003). Determination of the Pesticide Glyphosate and its Metabolites in Biological Specimen by GC/MS. A case of Poisoing by Roundup® Herbicide. Journal of Analytical Toxicology. Vol 27. 232-239.