Examinando por Autor "Centurión Contreras, Luz Aurora"

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    Concentración de mercurio y arsénico en Aulacomya atra Choro comercializado en los terminales pesqueros de Ancón, Ventanilla, Chorrillos y Villa María del Triunfo en enero del 2018
    (Universidad Privada Norbert Wiener, 2020-02-13) Centurión Contreras, Marleni; Centurión Contreras, Luz Aurora; Lizano Gutiérrez, Jesús Víctor
    The objective of this research was to determine the concentration of mercury and arsenic in samples of Aulacomya atra (choros), which were collected from four fishing terminals located in Lima, Peru. The research methodology was cross-sectional and descriptive. Two calibration curves for mercury and arsenic using standard solutions were developed to measure the concentration of heavy metals in bivalves, which were analyzed using cold vapor atomic absorption spectrophotometry with a hydride generator for mercury and flame atomic absorption spectrophotometry with a hydride generator for arsenic. All filter-feeding bivalves were collected from the fishing terminals of Ancón, Ventanilla, Chorrillos, and Villa María del Triunfo. The results of this investigation showed low mercury concentrations in the 20 samples analyzed, ranging from 0.03 to 0.25 ppm for Hg and 0.32 to 1.35 ppm for As. Compared with Peruvian standards, the data obtained showed levels of this metal below the maximum allowable limit (0.5 ppm) according to SANIPES. It was concluded that the concentrations of the heavy metals analyzed do not exceed the maximum permissible values.