Impact Factor (2025): 6.9
DOI Prefix: 10.47001/IRJIET
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
IRJIET, Volume 8, Issue 10, October 2024 pp. 105-113