Comparative analysis of physical-chemical and contaminant elements in the body of the water of Riacho Grilo in the state of Sergipe

Abstract

This study aimed to analyze and compare the physical-chemical and bacteriological parameters of Grilo Stream, located in Sergipe, with the analysis performed in 2009 by SEMARH. The methodology used the data collected in May 2015, to develop a comparative study with this analysis of 2009, plus the total copper in the water. The collection of samples was in loco, with the presence of riparian vegetation and absence of waste in the area. A subtle difference was noted between the models due to heavy rain on collection days. However, phosphorus, chloride and coliforms showed significant changes, with the first two indicating contamination chemicals, and reduced coliforms can be derived from the rain and values for total solids, which can lead to an accumulation of bacteria. As a result, the level of copper found makes the use of water inappropriate.