Objective: The objective of this study is to investigate the sanitation conditions of the Cotijuba riverine community, in Igarapé-Miri (PA), and the surface water quality of the Maiauatá River, aiming to support public policies and the management of water resources. Theoretical Framework: The study is based on research addressing socio-environmental vulnerability and deficiencies in basic sanitation in riverine communities, associating them with river water quality and the classification standards defined by CONAMA Resolution No. 357/2005. Method: The research is characterized as exploratory and descriptive. Structured questionnaires were applied to 25 families, and 48 water samples were collected at 12 points during rainy and less rainy periods, as well as low and high tide phases. All procedures followed the recommendations of the Standard Methods for the Examination of Water and Wastewater. Results and Discussion: Precarious sanitation conditions were observed in the community. All residents use river water for consumption and domestic activities, half dispose of sewage directly on the soil, and almost all resort to burning solid waste. Although most water parameters remained within the limits of CONAMA Resolution No. 357/2005, dissolved oxygen and total phosphorus concentrations indicated diffuse pollution associated with local anthropogenic pressures. Research Implications: The contributions of this study reach both academic and practical spheres, linking to the fields of public health, socio-environmental management, and sanitation policies. Originality/Value: The study demonstrates the ability to support integrated water resource management practices, public sanitation policies, and health promotion strategies in contexts of Amazonian vulnerability.
Souza et al. (2025) studied this question.