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    Evaluation of the water quality of the microcuenca of the Chibunga-Ecuador river in seasonal variations, period 2013-2017

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    Se evalu贸 las variables de contaminaci贸n que afectan la calidad del agua de la microcuenca del Rio Chibunga aplicando la comunidad de criterios, aceptadas y definidas para la investigaci贸n. El c谩lculo del 脥ndice de calidad de agua se realiz贸 con las siguientes variables: pH, ox铆geno disuelto, plomo, cadmio, DBO5, coliformes fecales, fosfatos, nitratos, s贸lidos suspendidos totales, aceites y grasas y tensoactivos monitoreados en diez puntos, cuatro campa帽as, y en 茅poca seca y lluviosa. Los factores de contaminaci贸n cuya calidad se ve m谩s afectada en 茅poca seca son el ox铆geno disuelto y plomo con calidad mala y en 茅poca lluviosa los s贸lidos suspendidos; la calidad de los coliformes fecales en todas las campa帽as y 茅pocas monitoreadas es p茅sima. El 脥ndice de Calidad del agua promedio para la microcuenca en el periodo 2013 al 2017 es de 58, indicando un estado REGULAR o poco contaminado del mismo, se puede considerar aceptable pero no recomendable para recreaci贸n, aceptable para la producci贸n agr铆cola, uso pecuario y producci贸n pisc铆cola, y no apta para uso en la industria normal sin previo tratamiento.The contamination variables that affect the water quality of the Chibunga River microbasin were evaluated by applying the community of criteria, accepted and defined for the research. The calculation of the Water Quality Index was made with the following variables: pH, dissolved oxygen, lead, cadmium, BOD5, fecal coliforms, phosphates, nitrates, total suspended solids, oils and fats and tensoactives monitored in ten points, four campaigns, and in dry and rainy season. Pollution factors whose quality is most affected in the dry season are dissolved oxygen and lead with poor quality, and in suspended periods suspended solids; The quality of fecal coliforms in all seasons and seasons monitored is terrible. The average water quality index for the microbasin in the period 2013 to 2017 is 58, indicating a REGULAR or little polluted state of it, it can be considered acceptable but not recommended for recreation, acceptable for agricultural production, livestock use and production fish farming, and not suitable for normal industry use without prior treatment
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