Contamination of groundwater by organic compounds in the Velhas river watershed, in the state of Minas Gerais, Brazil. Research, Society and Development, [S. l.], v. 9, n. 10, p. e3109108536, 2020. DOI: 10.33448/rsd-v9i10.8536. Disponível em: https://www.rsdjournal.org/rsd/article/view/8536. Acesso em: 6 dec. 2025.