Evaluación de la calidad de agua del sector Leg Tabacay y Oriente Alto, de la parroquia Bayas del cantón Azogues

Abstract

This work consisted in the analysis of the water quality that is used by the users of the houses of the sectors Leg Tabacay and Oriente Alto of the parish Bayas of the Azogues canton. The study was descriptive, cross-sectional, non-experimental. The samples of water were taken in the different domiciles of each of the indicated sectors. The statistical studies were based on stratified probabilistic random sampling, 18 samples were tested with duplication in each week during a period of eight weeks corresponding to the months of November and December of the year 2016. The physicochemical parameters that were analyzed were: color, turbidity, pH, conductivity, alkalinity, total hardness, sulfates, residual free chlorine, nitrites, nitrates and for the microbiological parameters the multi-tube or most probable number (MPN) technique was used for total coliforms and for fecal coliforms. The analysis of the results was performed by analysis of variance and T-tests of two-tailed student using a level of significance of 5%. All the parameters analyzed do not appear in the current standard (INEN Standard 1108-2014), so to assess their compliance with quality, it was necessary to refer to other reference standards (INEN Standard 1108-2006, NMX-2000, AYSA). The results obtained showed that in both the physicochemical and microbiological parameters, they did not present statistically significant differences in any of the two sectors analyzed and that they are within the limits allowed according to the norms used as the norm INEN 1108-2014 (color, turbidity (pH, hardness, sulfates), NMX 44-093-SCFI-200 (conductivity) and AYSA (alkalinity), while in microbiological parameters such as total coliforms Are within the range established by Norm INEN 1108-2006 (<2 NMP / 100 ml of water)