Critical toxicology applied to pesticides – perspectives in the defense for life

ABSTRACT

Toxicology is applied to regulatory processes based on the linear basis of the relationship between dose and effect and the possibility of establishing safe exposure conditions. This occurs despite the limitations pointed out by the scientific literature. The conception, definition of methodologies, and the conduct of risk assessment of pesticides ends up meeting economic interests and the definition of security scenarios that are far from reality. The methodological limitations of the studies required for the purpose of registering a pesticide involve: disregarding the interactions between the mixtures used; the failure to predict non-linear dose-response curves (hormetical); compartmentalization of the analyzed outcomes; exposure in critical periods of development; and disregarding of the context, individual and collective diversity and the territories exposed to pesticides, among other aspects discussed in this essay. Critical toxicology proposes that the toxicological assessment should start from the integrality of the problem in the context, presenting proposals that can be adopted in the regulation processes of pesticides and other potentially dangerous substances.

KEYWORDS
Risk assessment; Toxicology; Agrochemicals; Regulatory frameworks