Browsing by Author "Morales, Jimmy Alexander (Director)"
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Item Evaluación de arsénico total en muestras de aguas y sedimento del río Cauca, por método espectrométrico de generación continua de hidruros / absorción atómica(Universidad Santiago de Cali, 2022) Crespo Arias, Jonathan; Castillo Ayala, Jorge Enrique (Director); Morales, Jimmy Alexander (Director)Studies on arsenic (As) are very important because it has a mutagenic character, therefore, it is necessary to evaluate this metalloid in a tributary as important as the Cauca River, the second most important river in Colombia. Due to this, this study aims to evaluate the concentration of total arsenic present in the Cauca River both in the water matrix and in the sediment matrix. For this, sampling was carried out at four points along the river in the city of Cali, Colombia; The samplings were carried out in duplicate, spread over six days between the dates of October 14, 2021 and February 2, 2022. As a result, a concentration in a range of 0,00393 - 0,0148 mg/L of As in water was obtained. and 0,00602-0,00838 mg/L of As in sediments. The values obtained are associated with natural sources, as well as human activities. The possible human and environmental risks associated with the presence of As in the Cauca River, used to supply drinking water to 80% of the population of Cali, are highlighted.