ERICo, Environmental Research and Industrial Co-operation Ltd, Velenje, Koroska 58, 3320 Velenje, Slovenia.
Arch Environ Contam Toxicol. 2010 May;58(4):998-1007. doi: 10.1007/s00244-009-9417-5. Epub 2009 Nov 11.
The concentration of metals (Pb, Cd, Zn, Hg) in different ecosystem components (lake water, sediment, plankton, macrophytes, and fish tissues) has been determined in Velenjsko jezero, an artificial lake resulting from mining activity. The risk to humans from consuming fish has been evaluated from the heavy metal load of fish muscle tissue. Heavy metals are transferred through the food chain at different levels, and Hg is found to be the element of the highest ecotoxicological concern. Although both sediment and plankton contain relatively low concentrations of Hg, this element accumulates in high levels in fish, especially in the benthivorous species Abramis brama danubii and predator species Perca fluviatilis. Moreover, Hg appears to be very mobile in the fish organism. Whereas the other metals remained mostly in liver (Cd) or gills (Zn, Pb), levels of Hg in fish muscle and liver were the same and markedly higher than in gills. However, in muscle, the average concentrations of each metal were below their maximum limits, determined either by Slovenian legislation or by the Food and Agriculture Organization.
已经在 Velenjsko 耶泽罗（一个因采矿活动而形成的人工湖）确定了不同生态系统成分（湖水、沉积物、浮游生物、大型水生植物和鱼类组织）中金属（铅、镉、锌、汞）的浓度。已经从鱼类肌肉组织中的重金属负荷评估了人类食用鱼类的风险。重金属通过食物链在不同层次转移，汞被认为是具有最高生态毒性关注的元素。尽管沉积物和浮游生物中汞的浓度相对较低，但这种元素在鱼类中积累水平较高，尤其是在底栖食草物种多瑙河雅罗鱼和掠食性物种河鲈中。此外，汞在鱼类体内似乎非常活跃。而其他金属主要存在于肝脏（镉）或鳃（锌、铅）中，鱼类肌肉和肝脏中的汞含量相同，明显高于鳃中。然而，在肌肉中，每种金属的平均浓度都低于其上限，这些上限由斯洛文尼亚法规或联合国粮食及农业组织确定。
