Examinando por Autor "Campos Chavarria, Ana Luisa"

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    Cuantificación de fenoles y ácido hipúrico como indicadores de exposición al benceno y tolueno en trabajadores de carpintería del distrito San Juan de Lurigancho – Lima 2019
    (Universidad Privada Norbert Wiener, 2021-06-17) Campos Chavarria, Ana Luisa; Ramos Jaco, Antonio Guillermo
    The main objective of this study was to determine the concentration of phenols and hippuric acid in the urine of carpentry workers as indicators of exposure to benzene and toluene. The analytical technique used was UV-Vis spectroscopy. The sample consisted of 30 carpentry workers aged between 28 and 54 years with exposure times ranging from 8 to 30 years, to whom an occupational health survey was applied. The average concentration of phenols in urine was 215.1 mg/L, with a minimum of 138.0 mg/L and a maximum of 295.0 mg/L. Similarly, the average concentration of hippuric acid in urine was 2.02 g/L, with a minimum of 1.34 g/L and a maximum of 2.77 g/L. It was found that the levels of phenols and hippuric acid in urine exceeded the maximum permissible values according to the WHO (75 mg/L and 1.4 g/L) in 100% and 96.67% of the samples, respectively.