Evaluación del índice de calidad de agua (ica) de la microcuenca del río chibunga, en variaciones estacionales, provincia de chimborazo – ecuador, durante el periodo 2014

Abstract

An assessment to water quality index (WQI) was carried out. By the means of Dhelpi method the following parameters were taken into account for its analysis: Potential of Hydrogen, dissolved oxygen, Cadmium, Plumb, DBO 5 , Fecal Coliforms, total phosphorus, suspended solids, Nitrates, surfactants, fat and oils. Delphi method is a succession of surveys applied to experts taken into account considering its: capacity, experience and knowledge acquired that are under anonymous in order to guarantee its effectiveness. The place of study is the micro - basin of Chibunga River which is located at the province of Chimborazo, in the city of Riobamba, its course is 14 Km long, nine points were considered for this search such as: Point 1 beginnig of Chimborazo River, Point 2 discharge Shobol town, Point 3 discharge San Juan town, Po int 4 union Chimborazo - Gatazo river, Point 5 discharge Cemento Chimborazo Factory, Point 6 Gatazo town , Point 7 Ecological Park, Point 8 discharge San Luis town, Point 9 discharge from Chibunga of Chambo river. Besides, Analysis was made in dry season on August 7 th , 2014 and in rainy season on November 6 th , 2014. The results obtained for quality water in the micro basin according WQI are: in dry season 76, 34 and in rainy season 73, 11 which are qualified as good for aquatic life prevention. However, param eter like: Fecal Coliforms, dissolved oxygen, fat and oils have a really bad quality which reflects that water taken from Chibunga River is not appropriate for agriculture, recreation, watering hole of animals. For future analysis it must be taken into acc ount that Chibunga River is an active ecosystem with biosphere, sediments must be sampled, as well as gases emissions for more complex results.