Project 88881.159143/2017-01 funded by the Coordination of Improvement of Higher Education Personnel (CAPES) and the Amazonia Foundation for Studies and Research in Pará (FAPESPA)Universidade Federal do Oeste do Pará. Instituto de Biodiversidade e Florestas. Santarém, PA, Brazil.Universidade Federal do Oeste do Pará. Instituto de Biodiversidade e Florestas. Santarém, PA, Brazil.Universidade Federal do Oeste do Pará. Instituto de Biodiversidade e Florestas. Santarém, PA, Brazil.Universidade Federal do Oeste do Pará. Instituto de Biodiversidade e Florestas. Santarém, PA, Brazil.Universidade Federal do Oeste do Pará. Instituto de Ciência e Tecnologia das Águas. Santarém, PA, Brazil.Universidade Federal do Oeste do Pará. Instituto de Ciência e Tecnologia das Águas. Santarém, PA, Brazil.Universidade Federal do Oeste do Pará. Instituto de Ciência e Tecnologia das Águas. Santarém, PA, Brazil.Ministério da Saúde. Secretaria de Vigilância em Saúde e Ambiente. Instituto Evandro Chagas. Laboratório de Toxicologia. Ananindeua, PA, Brasil.Universidade Federal do Oeste do Pará. Instituto de Biodiversidade e Florestas. Santarém, PA, Brazil.Analyzing the organochlorine pesticide (OCP) content in milk is relevant because it helps evaluate the quality of milk that reaches the consumer's table and also helps identify the geographical areas where there is a high possibility of contamination. Accordingly, this pilot project was aimed at determining the extent of contamination by OCP residues and their metabolites in fresh cow's milk in Mojuí dos Campos and Belterra, Pará, using solid-phase extraction (SPE) and gas chromatography coupled with electron capture detection (GC-ECD). The OCPs evaluated in this study were dichlorodiphenyltrichloroethane (DDT) and its metabolites (dichlorodiphenyldichloroethylene (DDE) and dichlorodiphenyldichloroethane (DDD)), hexachlorocyclohexane (HCH) (α, β, γ, and δ), endosulfanα and β, and endosulfansulfate. None of the thirty bovine milk samples analyzed showed any contamination with OCPs. The OCP content was within the limit of quantification of the method. The results of this study add to the existing knowledge on the quality of bovine milk produced in these locations. However, further research on other environmental matrices is required to confirm the results obtained in this stud
