Evaluación de la calidad del agua en la microcuenca Pumamaqui mediante el cálculo del wqi-nsf

Abstract

The study of water quality is currently considered the most important factor to apply adequate management in a micro-basin, it allows us to identify problems and take necessary actions such as applying monitoring and follow-up. The present research work was aimed at evaluating the water quality of the Pumamaqui micro-basin. For this, a technical delimitation was carried out using the Pfafstetter methodology, a monitoring program according to the procedures set out in the Ecuadorian Technical Standards NTE INEN 2226: 2013, NTE INEN 2169: 2013 and NTE INEN 2176: 2013. With them, the objective of the program was determined, which is the identification of sources of contamination. To determine its quality, the water quality index proposed by the National Sanitation Foundation of the United States was applied, which has 9 parameters; temperature, total solids, turbidity, dissolved oxygen, pH, biochemical oxygen demand, phosphates, nitrates and fecal coliforms, with the calculation of the index we implemented polynomial adjustments to the curves for greater accuracy. With the characterization of the study area, the 4 sampling points were obtained, the results obtained from the analysis show that the micro-basin has good water quality with values ranging from 83,45 WQI-NSF to 91,07 WQI-NSF, each parameter was analyzed independently, which reflected that the levels of nitrates and phosphates have lower quality, mainly due to the activities that take place in the micro-basin.