Análise da qualidade do rio Poxim através de mapeamento sistemático

Abstract

Considering the growing urbanization and the exponential increase in population, the already limited water resources need more attention in terms of their preservation. Therefore, in 2005, CONAMA Resolution No. 357 classified water bodies into classes according to their quality and indicating their respective uses. Thus, as it is largely located in the urban environment, the Poxim River needs greater attention in terms of water quality, considering that it is evidenced by evictions, agricultural activities and the presence of population close to the banks in various stretches of the course. Therefore, the work aimed, through a systemic literature mapping (MSL), to identify the studies already published about the quality of the Poxim river, observing gaps and evaluating the quality of the river from such publications. After mapping, 16 studies were obtained, from the last 15 years, which contributed to the analyzes carried out. Thus, it was identified that the pH and temperature parameters do not affect the quality of the river and the turbidity, in some stretches, is in the range indicated for class 1. However, the Biochemical Oxygen Demand (BOD), dissolved oxygen (OD), the Balneability Index (IB) and the Compliance Index (ICE) showed that the quality of the river is compromised, especially in urban stretches, due to the low sewage collection in the region. It was concluded, therefore, that through the publications found, the current quality of the water body may not be represented due to the years of publications and the few common parameters in them.