Hahn E, Hahn K, Stoeppler M
Bureau for Biomonitoring, Jülich, Germany.
Sci Total Environ. 1993 Nov 1;139-140:259-70. doi: 10.1016/0048-9697(93)90025-2.
Feathers of selected bird species are used as pollution integrating biomonitors in areas of the German Environmental Specimen Bank. Lead, cadmium and mercury are analysed by Zeeman Solid Sampling AAS in feather vanes of selected bird species with different ecologies. In feather vanes there are quite different distribution patterns of lead and cadmium on the one hand and mercury on the other: lead and cadmium show strong gradients with respect to feather parts with high exposure to atmospheric influences. In contrast to this, mercury is distributed homogeneously. These different distribution patterns of lead and cadmium in feather vanes, in contrast to mercury, show that there are quite different incorporation paths. Cadmium and lead are deposited exogenously and indicate atmospheric pollution. Mercury in feathers is caused endogenously by food and physiology. Most of the mercury analysed in bird's feathers is in the ecotoxic methylated form and the contents in feathers depend on bioaccumulation in food chains. Feathers are suitable indicators for monitoring heavy metal pollution and give us information about incorporation paths and ecotoxic effects.
在德国环境标本库的区域中，选定鸟类物种的羽毛被用作污染综合生物监测器。通过塞曼固体进样原子吸收光谱法对具有不同生态习性的选定鸟类物种的羽毛羽片中的铅、镉和汞进行分析。在羽毛羽片中，铅和镉一方面与汞另一方面呈现出截然不同的分布模式：铅和镉在受大气影响较大的羽毛部位呈现出强烈的梯度分布。与此形成对比的是，汞的分布较为均匀。羽毛羽片中铅和镉与汞不同的分布模式表明存在截然不同的吸收途径。镉和铅是外源性沉积，表明大气污染。羽毛中的汞是由食物和生理因素内源性产生的。鸟类羽毛中分析出的大部分汞呈具有生态毒性的甲基化形式，羽毛中的含量取决于食物链中的生物累积。羽毛是监测重金属污染的合适指标，能为我们提供有关吸收途径和生态毒性效应的信息。
