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The usage of insecticides and their health impacts on farmers and farmworkers: a scoping review

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Abstract

Objective

This scoping review was conducted to identify studies on insecticide usage practices, the types of health impacts experienced, and the factors contributing to insecticide exposures among farmers and farm workers.

Methods

Four electronic databases – Web of Sciences, Medline, PubMed and Scopus – were used to search relevant peer-reviewed studies published between 2011 and 2021 that reported on farmer/farmworkers’ insecticide usage and health impacts resulting from exposure. The extracted studies were then assessed against eligibility criteria to provide the final studies considered in this scoping review.

Results

The initial search result of 2123 articles yielded 177 studies; the majority reporting on acute rather than chronic health impacts. Approximately three quarters of the studies were conducted in less developed countries, 50% in Asia, 15% in Africa and 12% in South America. The predominant acute effects were found to be headache and irritation of skin and eyes, whereas chronic effects were more commonly cancer, reproductive/developmental or neurological. Inadequate use of personal protective equipment (PPE) was one of the major factors contributing to insecticide exposure, reported in 70 (40%) peer-reviewed articles in this review.

Conclusions

This review identified the major contributory factors to insecticide exposure and harm to health. It highlighted the need for further research on impediments to the safe use of insecticides and mitigation of health risks, which need to be addressed for safe insecticide application in agriculture.

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Funding

The authors did not receive support from any organization for the submitted work.

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Authors

Contributions

NK, JBN, KP & VN contributed to the study conception and design. NK and KP independently screened the titles and abstracts, for inclusion in the scoping review. Any conflicts between the two researchers regarding inclusion or exclusion were resolved by VN. NK was involved in data extraction and data charting. The first draft was written by NK and all authors read, commented on, and approved the final manuscript.

Corresponding author

Correspondence to Nishikanta Kumar.

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The authors have no known conflicting financial interests or non-financial interests that could have influenced the findings reported in this paper.

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Kumar, N., Bohatko-Naismith, J., Palaniappan, K. et al. The usage of insecticides and their health impacts on farmers and farmworkers: a scoping review. J Public Health (Berl.) (2023). https://doi.org/10.1007/s10389-023-02164-0

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  • DOI: https://doi.org/10.1007/s10389-023-02164-0

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