Sustainable cities for water: the public policies for rectification and sanitation of the Providência channel, in Belém (Pará- Brazil). Research, Society and Development, [S. l.], v. 11, n. 12, p. e45111234294, 2022. DOI: 10.33448/rsd-v11i12.34294. Disponível em: https://rsdjournal.org/rsd/article/view/34294. Acesso em: 6 dec. 2025.