Facultad de Ingeniería, Universidad Tecnológica del Chocó, Carrera 22 No.18B-10, Quibdó, Colombia; Facultad de Ingeniería, Universidad de Medellín, Carrera 87 No. 30-65, Medellín, Colombia.
Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, Del. Gustavo A. Madero, C.P. 07340 Ciudad de México, Mexico.
Mar Pollut Bull. 2018 Oct;135:1-8. doi: 10.1016/j.marpolbul.2018.06.060. Epub 2018 Jun 30.
Thirty sediment samples from four different beaches along Bahia Solano and Nuquí (Department of Chocó) of eastern Colombia, with tourism and gold mining activities, were analysed to estimate the concentrations of fourteen different acid leachable metals. Metal distribution patterns showed elevated concentrations of Co, Cr, Cu, Pb and Zn compared with the upper continental crust values. Calculation of geochemical indices confirmed that the enrichment is due to periodic gold mining activities (severe to extremely severe enrichment of Cu, Zn, V, Co, Cr and Pb) along with natural (geological) contributions (minor and moderate enrichment of Ca, Mg, Fe, Ti, Mn and Li). Potential ecological risk index revealed that Pb posed the highest risk. Our results together with a global comparison suggest that the observed metal enrichments are mainly caused by mining and to a lesser extent by tourism in this region, thus instigating continuous monitoring of metal concentrations in this region.
从哥伦比亚东部的 Bahia Solano 和 Nuquí（乔科省）四个不同海滩采集了 30 个沉积物样本，这些海滩都有旅游业和采金活动，对这些样本中 14 种不同的酸可提取金属的浓度进行了分析。金属分布模式显示，与上地壳值相比，Co、Cr、Cu、Pb 和 Zn 的浓度较高。地球化学指数的计算结果证实，这种富集是由于周期性的采金活动（Cu、Zn、V、Co、Cr 和 Pb 严重到极度富集）以及自然（地质）贡献（Ca、Mg、Fe、Ti、Mn 和 Li 轻微到中度富集）造成的。潜在生态风险指数表明 Pb 构成的风险最高。我们的研究结果与全球比较结果表明，在该地区，观察到的金属富集主要是由采矿造成的，其次是旅游业造成的，因此需要在该地区持续监测金属浓度。
