Padrões de potabilidade, para Agrotóxicos e metabólitos em água, em estados de Santa Catarina, Paraná e Mato Grosso Do Sul

• Ano de defesa: 2025
• Autor(a) principal: Lacerda, Diogo Muller
• Orientador(a): Gotardo, Jackeline Tatiane
• Banca de defesa: Boas, Marcio Antonio Vilas, Araujo, Fenanda Cristina
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual do Oeste do Paraná; Cascavel
• Programa de Pós-Graduação: Programa de Pós-Graduação em Engenharia Agrícola
• Departamento: Centro de Ciências Exatas e Tecnológicas
• País: Brasil
• Palavras-chave em Português: Potabilidade; Agrotóxicos; Monitoramento; CONAMA 357; Portaria 888
• Palavras-chave em Inglês: Potability; Pesticides; Monitoring; CONAMA 357; Ordinance 888
• Área do conhecimento CNPq: ENGENHARIA AGRICOLA
• Link de acesso: https://tede.unioeste.br/handle/tede/7843

Identifying and assessing the quality of drinking water is of great importance for understanding the current state of the water consumed. The use of pesticides and other contaminants is one of the main tools used in the current Brazilian agricultural model. They tend to accumulate, and their residues can reach surface waters. The intensive use of these mechanisms is associated with health problems for the population and environmental degradation. Currently, the most widely used pesticides in agriculture are organophosphates and carbamates, which have very efficient insecticide activity due to their characteristic of inhibiting the enzyme acetylcholinesterase in the nervous system, which achieves its objective in insects but can also act on mammals, thus characterizing a problem for living beings. In this context, some legislation provides limitations aimed at controlling these contaminants. CONAMA resolution No. 357 of 2005 defines and classifies water suitable for human consumption, delimiting criteria for organic and inorganic compounds. Law No. 7,802 of July 11, 1989, defines pesticides as: “Products and agents of physical, chemical or biological processes for use in the cultivation, storage and processing of agricultural products”. In addition to CONAMA resolution No. 357, another important regulation that came into force in 2021 was Ordinance GM/MS No. 888, which establishes procedures for controlling and monitoring the quality of water for human consumption and its potability standard. This Ordinance establishes specific maximum residue limits (MRLs) for 54 contaminants. A statistical study was carried out in the databases of the A3Q Laboratory, located in the city of Cascavel/PR, a laboratory with national operations and a reference in environmental analysis, in order to identify contamination in water samples, analyzing requests related to CONAMA ORDINANCE 357 and GM/MS 888, in the period between January 2021 and August 2023. More than 10,000 requests were evaluated in the most varied compounds, being filtered and organized according to the interest of the study. In this context, this work aimed to study and evaluate, through monitoring patterns of organic compounds, the possible contamination of water in river basins in the states of Paraná, Santa Catarina and Mato Grosso do Sul, based on the identification of potability patterns. These were spatially distributed in the states of interest. The quantities of requests and main cities of the states mentioned were mapped. Basic descriptive statistical evaluation of the database was carried out, providing relevant information for the study and for new future evaluations. The results demonstrated that residues of highly toxic organic compounds, such as organophosphates and carbamates, were detected in the evaluated matrices, indicating environmental and public health risks. The presence of these compounds reinforces the need for policies, monitoring and sustainable management of water resources, as well as the importance and application of conscious use practices.