Laboratoire d'Océanologie et de Géosciences, Université Littoral Côte d'Opale, Université de Lille, CNRS, UMR 8187, LOG, F-62930, Wimereux, France.
Laboratory for Food Safety, Université Paris-Est, ANSES, F-94701, Maisons-Alfort, France.
Environ Sci Pollut Res Int. 2020 Apr;27(11):12428-12438. doi: 10.1007/s11356-020-07794-5. Epub 2020 Jan 29.
Levels of 20 trace elements (Al, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Ag, Cd, Sn, Sb, Ba, Hg, Pb, and U) were assessed in livers and muscles of two demersal fish species (Siganus rivulatus and Lithognathus mormyrus) and one pelagic species (Etrumeus teres) from the Lebanese coast located in the Eastern Mediterranean. The samples were collected from three sites along the Lebanese coast during the wet and dry seasons in 2017. The trace elements were more concentrated in livers than in muscles and interspecific differences were also found. The herbivorous species S. rivulatus showed the highest levels for most trace elements, while the carnivorous species L. mormyrus showed the least contamination. Elemental seasonal differences were species dependent and were observed for Ti, Cr, Mn, Fe, Ni, As, and Hg, with higher values during the wet season. Multivariate analysis showed spatial differences mainly during the wet season, while being closely related to species that reflected different accumulation patterns in each site. Levels of most trace metals in livers were higher than those reported in other Mediterranean regions (up to 2 to 3 folds). Nevertheless, the levels of Cd, Pb, and Hg in fish muscle were below the maximum levels set by the European Commission indicating that the consumption of these fish species is not likely to have adverse effect on human health. However, exposure depends on dietary habits of the population and a continuous exposure to these elements may result in adverse effects.
在黎巴嫩东地中海沿岸，对三种底栖鱼类（波纹唇鱼和褐牙鲆）和一种洄游鱼类（马鲛鱼）的肝脏和肌肉中的 20 种微量元素（Al、Ti、V、Cr、Mn、Fe、Co、Ni、Cu、Zn、As、Se、Ag、Cd、Sn、Sb、Ba、Hg、Pb 和 U）的含量进行了评估。这些样本是在 2017 年的湿季和干季期间从黎巴嫩沿岸的三个地点采集的。这些微量元素在肝脏中的浓度高于肌肉中的浓度，并且还发现了种间差异。草食性的波纹唇鱼显示出对大多数微量元素的最高浓度，而肉食性的褐牙鲆则显示出最低的污染程度。元素的季节性差异是种间依赖的，并且在 Ti、Cr、Mn、Fe、Ni、As 和 Hg 等元素中观察到，湿季的含量更高。多元分析表明，空间差异主要发生在湿季，与在每个地点反映不同积累模式的物种密切相关。肝脏中大多数痕量金属的水平高于其他地中海地区（高达 2 到 3 倍）。然而，鱼肌肉中的 Cd、Pb 和 Hg 水平低于欧盟委员会设定的最大水平，这表明这些鱼类的食用不太可能对人类健康产生不利影响。然而，暴露取决于人群的饮食习惯，持续接触这些元素可能会产生不利影响。
