Evidence on Human Exposure to Pesticides and the Occurrence of Health Hazards in the Brazilian Population: A Systematic Review

Brazil is among the biggest pesticide consumers in the world, with its population severely exposed to tons of such substances, both because of environmental contamination and occupational use. The health consequences of pesticide exposure are well-documented, but still sparse regarding Brazilian population. This study systematically reviewed the Brazilian studies published that address the relationship between exposure to pesticides and health problems in the Brazilian population. Also, information about pesticide use in Brazil is provided. The included studies showed that exposure to pesticides has a relevant impact on the health of the Brazilian population, regardless of age and gender, and on workers in rural areas or not. Most poisoning events seem to result from the continuous use of pesticides, whether occupationally or environmentally, characterizing a public health problem. The major consequences reported in literature were damage to the central nervous system, cancer, deleterious effects on rural workers' health, intoxications, malformations, and endocrine changes. These findings point out the need to understand the impact of chronic exposure to pesticides on severely exposed people and highlight the importance of creating public policies to protect them and avoid disease occurrence.

Automated summary

This study systematically reviewed the relationship between pesticide exposure and health problems in the Brazilian population, highlighting the significant impact of pesticide exposure on the health of individuals in both rural and non-rural areas. The findings indicate that chronic exposure to pesticides can lead to damage to the central nervous system, cancer, detrimental effects on rural workers' health, intoxications, malformations, and endocrine changes. The study emphasizes the importance of implementing public policies to protect severely exposed individuals and prevent the occurrence of diseases.