College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China.
Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, 410083, China.
Environ Sci Pollut Res Int. 2018 Mar;25(9):8861-8870. doi: 10.1007/s11356-018-1207-z. Epub 2018 Jan 12.
The concentrations of 16 elements (Mg, Al, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Sr, Cd, Ba, and Pb) were determined in four fish species (Carassius auratus, Squaliobarbus curriculus, Pelteobagrus fulvidraco, and Silurus asotus) collected in the Xiang River, a mine-impacted river in Southern China. The mean values of the elements analyzed in fish muscles were in the decreasing order of Mg > Ca > Zn > Fe > Sr > Al > Cu > Mn > Ba > As > Cr > Pb > Ni > V > Co > Cd. The concentrations of Mg, Ca, Sr, Ba, and Cu in omnivorous species were found to be significantly higher (p < 0.05) than those in carnivorous species. Negative correlations observed between most element concentrations and fish sizes indicated the younger individuals accumulated more elements than the older ones. Principle component analysis and orthogonal partial least squares discriminant analysis were employed to characterize the effects on element bioaccumulation using the element concentration matrix. The elemental profiles preferred to cluster according to differences in fish species rather than in sampling sites. The potential health risk evaluated through Monte Carlo simulation showed no appreciable adverse impact on human health from exposure to trace elements in fish muscles through consumption.
在中国南方受矿山影响的湘江中采集了四种鱼类（鲫鱼、团头鲂、黄颡鱼和鲶鱼），并测定了其中 16 种元素（镁、铝、钙、钒、铬、锰、铁、钴、镍、铜、锌、砷、锶、镉、钡和铅）的浓度。鱼肉中分析元素的平均值按镁>钙>锌>铁>锶>铝>铜>锰>钡>砷>铬>铅>镍>钒>钴>镉的顺序递减。研究发现，杂食性鱼类肌肉中镁、钙、锶、钡和铜的浓度明显高于（p<0.05）肉食性鱼类。大多数元素浓度与鱼类大小之间存在负相关关系，表明较年轻的个体比年老的个体积累了更多的元素。主成分分析和正交偏最小二乘判别分析用于利用元素浓度矩阵来描述元素生物累积的影响。元素图谱倾向于根据鱼类种类的差异而不是采样点的差异聚类。通过蒙特卡罗模拟评估的潜在健康风险表明，通过食用鱼类肌肉中的微量元素接触，对人体健康没有明显的不良影响。
