Calidad microbiológica del agua en el río Cutuchi de dos comunidades de área agrícola en la provincia de Cotopaxi y su posible implicación en la salud humana

Abstract

In the present investigation, the microbiological quality of the water in the Cutuchi river in the province of Cotopaxi was determined with the objective of determining the presence of pathogenic microorganisms for humans in water used for agricultural irrigation of crops or related activities in the different communities, using the method of total bacterial count by dissolution of tubes and the respective identification by confirmatory techniques of the type of bacteria, in order to inform the surrounding population of a statistical evaluation of units formed by colonies of the body of water and possible health affections. In the case of the Cutuchi river, samples were taken from two points in the surrounding communities: Tiobamba and San Rafael del Tingo, where the respective laboratory analyses were carried out by sowing striations on plates containing 4 agars: Nutrient, Mannitol, Blood and MacConkey in these the differentiation was made by biochemical techniques, and lactose finding large negative bacteria of the families Escherichia, Enterobacter, Shigella and Pseudomonas also identified the presence of fecal coliforms in the river Cutuchi, the same that can cause serious diseases to human health, Since this river is used for irrigation and animal consumption, this river has an average of 23 CFU/100mL to 23.67 CFU/100mL, which compared to the norm are above the limits established by Book VI Annex I of the TULSMA, which specifies that the maximum permissible value of 20 CFU/100mL.