Avaliação da qualidade da água do rio Mamanguape nos anos de 2018 a 2023

Abstract

Water is a fundamental element for sustaining life. Its uncontrolled and irrational use may lead to a range of environmental issues. Monitoring natural resources, such as physical-chemical and microbiological analysis, is an important indicator of the quality of a body of water. The Mamanguape River is of great importance in the socioenvironmental and economic context. It is the main location in the Northeast for the development of species of manatees (Trichechus manatus), the most endangered aquatic mammal in Brazil. The discharge of pollutants into the water bodies, resulting from the activities of the productive sectors, primary, secondary and public services, was considered to be the main cause of ecological problems in the Mamanguape River. The aim of this study was to assess the water quality of the Mamanguape River, based on official data from the Paraíba State Superintendence of Environmental Administration (SUDEMA). Three points were chosen for the analysis and collection of water from the Mamanguape River: MM01, MM02 and MM03. The analysis followed the methodology of the Standard Methods for the Examination of Water and Wastewater. The study used data obtained from physicochemical and microbiological analyses of the waters of the Mamanguape River, from 2018 to 2023, carried out by the Coordination of Environmental Measurements (CMA) of the Superintendence of Environmental Administration (SUDEMA). Thus, based on the parameters of pH, DBO, OD, turbidity, conductivity, SDT, temperature and coliforms obtained during the analyses from 2018 to 2023, it was possible to compare whether or not they complied with CONAMA Resolution 357/2005 and thus obtain graphs with the IQA values of the Mamanguape River water. Based on these graphs generated and the results obtained, the water quality of the Mamanguape River was classified as good during the 6 years of analysis.