Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2022 Apr 30:2022:8997449.
doi: 10.1155/2022/8997449. eCollection 2022.

Seasonal Changes in Pesticide Residues in Water and Sediments from River Tano, Ghana

Jackson Adiyiah Nyantakyi  1 , Samuel Wiafe  2 , Osei Akoto  3
Affiliations

Seasonal Changes in Pesticide Residues in Water and Sediments from River Tano, Ghana

Jackson Adiyiah Nyantakyi et al. J Environ Public Health. .

Abstract

Pollution due to pesticide residues has been reported in the downstream of the Tano Basin in the rainy season and has been attributed to the anthropogenic activities upstream. However, data on the seasonal variations in pesticide residues in the upstream of Tano Basin are limited. Seasonal variations in 13 organochlorine pesticide residues, 8 organophosphorus pesticide residues, and 5 synthetic pesticide residues in water and sediment samples of River Tano upstream were assessed through extraction and Varian CP-3800 gas chromatography equipped with a CombiPAL Auto sampler set at ionization mode electron impact methods. Significantly higher pesticide residues were detected in water and sediment samples in the rainy season than the dry season. Permethrin (rainy: 0.007 ± 0.01 mg/kg; dry: 0.008 ± 0.02 mg/kg) and profenofos (rainy: 0.021 ± 0.02 mg/kg; dry: 0.026 ± 0.01 mg/kg) showed higher dry season concentrations in the sediment samples. Two isomers of lindane (δ-HCH = 0.059 ± 0.24 μg/L; γ-HCH = 0.002 ± 0.01 μg/L) were detected in the water in the rainy season, but 3 were detected in the sediment samples (δ-HCH = 0.004 ± 0.12 mg/kg; γ-HCH = 0.003 ± 0.01 mg/kg; aldrin = 0.001 ± 0.01 mg/kg) suggesting possible illegal use. The detected pesticide residual levels in both water and sediment samples were lower than the maximum residual levels in water and sediment. The Chemical Control and Management Centre of the Environmental Protection Agency should check possible faking and adulteration of banned organochlorine pesticides.

PubMed Disclaimer

Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
Map of Ghana showing the upstream of the Tano Basin, sampling sites, and land use.
Figure 2
Figure 2
Principal composite analysis of OP residues in water samples from River Tano.
See this image and copyright information in PMC

References

    1. Mohammed S., Lamoree M., Ansa-Asare O. D., de Boer J. Review of the analysis of insecticide residues and their levels in different matrices in Ghana. Ecotoxicology and Environmental Safety . 2019;171:361–372. doi: 10.1016/j.ecoenv.2018.12.049. - DOI - PubMed
    1. Hashmi T. A., Qureshi R., Tipre D., Menon S. Investigation of pesticide residues in water, sediments and fish samples from Tapi River, India as a case study and its forensic significance. Environmental Forensics . 2020;21(1):1–10. doi: 10.1080/15275922.2019.1693441. - DOI
    1. Fuhrimann S., Wan C., Blouzard E., et al. Pesticide Research on Environmental and Human Exposure and Risks in Sub-Saharan Africa: A Systematic Literature Review. International Journal of Environmental Research and Public Health . 2022;19(1):259. doi: 10.3390/ijerph19010259. - DOI - PMC - PubMed
    1. MOFA. Agriculture in Ghana. Facts and Figures. Policy Planning, Monitoring and Evaluation . Accra, Ghana: Ministry of Food and Agriculture; 2010.
    1. Stanley D. A., Russell A. L., Morrison S. J., Rogers C., Raine N. E. Investigating the impacts of field-realistic exposure to a neonicotinoid pesticide on bumblebee foraging, homing ability and colony growth. Journal of Applied Ecology . 2016;53(5):1440–1449. doi: 10.1111/1365-2664.12689. - DOI - PMC - PubMed

Publication types