Análise da presença de agrotóxicos nas águas de abastecimento dos municípios da microrregião de Toledo por meio dos dados do SISAGUA

Abstract

The intensification of agriculture and the increasing use of pesticides have generated significant impacts on water resources and human health. This study aimed to analyze the presence of pesticides in the drinking water of municipalities in the microregion of Toledo (PR), using data from the Water Quality Surveillance Information System for Human Consumption (SISAGUA), referring to the first half of 2025. This is a quantitative, descriptive, and documentary-based study, based on secondary data provided by the Ministry of Health. The parameters "identified" and "lowest limit of quantification (LOQ)" were analyzed for the active ingredients monitored by Ordinance GM/MS No. 888/2021. The results indicated that the municipalities of Entre Rios do Oeste, Quatro Pontes, and Tupãssi presented the greatest diversity of pesticides in their drinking water, with particular emphasis on the presence of substances prohibited in Brazil, such as Carbofuran, Carbendazim, and Lindane HCH. These active ingredients highlight possible irregularities in the use of agrochemicals and reinforce the need to strengthen environmental monitoring and enforcement policies. It is concluded that the adoption of sustainable and agroecological agricultural practices is fundamental for reducing water contamination and protecting public health.