Water potability in municipal schools in Capanema-PA: A proposal for improvement with a simplified treatment system. Research, Society and Development, [S. l.], v. 11, n. 12, p. e482111234235, 2022. DOI: 10.33448/rsd-v11i12.34235. Disponível em: https://rsdjournal.org/rsd/article/view/34235. Acesso em: 6 dec. 2025.