2019
DOI: 10.22395/rium.v18n34a1
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Línea base del mercurio, departamento de Antioquia: sedimentos activos finos de corriente escala 1: 500.000

Abstract: Con base en muestras de sedimentos activos finos de corriente y su procesamiento, fue elaborada la línea base del mercurio (Hg) del departamento de Antioquia. Las muestras fueron analizadas con espectrografía de fluorescencia atómica (AFS), con un límite de detección de 2 μg kg-1. Para el modelamiento espacial se usó un grid de 100 m × 100 m, esto quiere decir que se estimaron en el departamento de Antioquia 18,9 millones de celdas de 10.000 m2. La cartografía se elaboró aplicando la técnica geoestadística del… Show more

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“…Similarly, Table 2 shows the mercury concentration in the active fine sediment current according to the percentiles detected after the analysis of the results. In Figure 3, it can be observed how the highest values of mercury concentration in the fine active sediments of streams are found in Northeast Antioquia, with minimum values of 182 μg kg −1 and maximum values of 3888 μg kg −1 [20]. These figures reflect the excessive use of mercury for gold amalgamation.…”
Section: Artisanal and Small-scale Gold Mining In Northeast Antioquiamentioning
confidence: 94%
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“…Similarly, Table 2 shows the mercury concentration in the active fine sediment current according to the percentiles detected after the analysis of the results. In Figure 3, it can be observed how the highest values of mercury concentration in the fine active sediments of streams are found in Northeast Antioquia, with minimum values of 182 μg kg −1 and maximum values of 3888 μg kg −1 [20]. These figures reflect the excessive use of mercury for gold amalgamation.…”
Section: Artisanal and Small-scale Gold Mining In Northeast Antioquiamentioning
confidence: 94%
“…Despite all of these efforts led by the Government of Antioquia, UNIDO, and the University of British Columbia, recent studies show that the mercury problem resulting from this mining activity continues to be worrisome. In 2019, Sánchez et al [20] prepared the mercury baseline for the Department of Antioquia. For this, they defined basic sampling units of 600 km 2 that intercept the Department of Antioquia in 152 cells, as shown in Figure 2.…”
Section: Artisanal and Small-scale Gold Mining In Northeast Antioquiamentioning
confidence: 99%
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