Análisis comparativo de diferentes índices para evaluar la calidad del agua de la Quebrada Cazaderos perteneciente a la cuenca del Río Puyango.

Abstract

Abstract:This work provides information about the water quality of the Cazaderos creek thanks to the analysis of 48 historical samplings in 3 points, adding another sampling campaign and laboratory analysis of two of those points. This through the calculation of Water Quality Indexes with the Arithmetic Weight WQI methods resulting in a very poor quality of 2657, British Columbia WQI with a tolerable quality of 36 and CCME WQI with a poor quality of 50 for the criteria of protection of aquatic life under the Ecuadorian standard TULSMA-MAE (2017). An analysis of parameters is provided, concluding that there are high concentrations of phosphorus, aluminum, fecal coliforms, total coliforms, iron and, to a lesser extent, lead, cadmium, copper, and zinc. In addition, an analysis of meteorological variables has shown that greater contamination can be found in the dry period, in the months of July to December. Finally a remediation plan is provided, this plan proposes studies to identify polluting discharges, training, control of agriculture, livestock control and wastewater treatment works.