Browsing by Author "Viafara Ramos, Yancy Mayerly"
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Item Determinación de mercurio mediante análisis por espectroscopía de absorción atómica con vapor frío en aguas del río Palo en su paso por los municipios de Guachené y Puerto Tejada(Universidad Santiago de Cali, 2023) Viafara Ramos, Yancy Mayerly; Ríos Acevedo, Jhon Jairo (Director)The Palo river is located along the department of Cauca, one of the departments with the greatest legal and illegal mining exploitation, which is a topic of growing interest since the contamination of rivers due to the presence of mercury (Hg) is very critical, due to the bioaccumulation that prevents its elimination and the serious effects it has on human health and the deterioration of the environment. In this study, a method for quantification of Hg in raw water samples was validated by means of atomic absorption spectrometry with cold vapor; under the criteria of accuracy, precision, stability, linearity, detection and quantification limit and uncertainty, a working range of 0.805 ug/L Hg to 60 ug/L Hg was defined. Sampling was carried out in the Palo River at five (5) points of interest between the municipalities of Guachené and Puerto Tejada, in accordance with the mining activity reported in the area, and the mercury concentration was determined in three different seasons. Thus, Hg concentrations of between 0.2 and 2.0 μg/L were obtained at all sampling points, concluding that both mining and dredging activities as well as climate and hydrological conditions influence mercury concentration in the river studied.