作　　者： ; ; ; ; (翁森汉）;

机构地区： 中山大学物理科学与工程技术学院物理系

出　　处： 《中山大学学报（自然科学版）》 1996年第4期13-17,共5页

摘　　要： 研究放射性核素在淡水鱼中浓集的动态特性．给出一个数学模式，拟合所得实验结果，确定出１３１Ⅰ在淡水鱼中浓集的特征参量，浓集因子，速率常数和浓集速率．并研究１３１Ⅰ在鱼各部分的浓集程度。 The dynamic characters of concentration of radionucldes in freshwater fishes are studied. The experimental results are fit by a mathematical model to get characteristic parameters, such as concentration factors, elimination rate constant and concentration rate. Meanwhile, the relative concentration degree of radionulide 131 Ⅰ of different organisms in a fish is shown. The influence of various factors on migration characterristics of radionuclides in freshwater fishes are discussed. From the results of all the experiments for tilapias, the concentration factor CF lies in the range (2.29￣5.41) Bq\5kg -1 /Bq\5L -1 , and the limimation rate constant k lies in the range (0 0026￣0 0083)h -1

关 键 词： 动态特性 淡水鱼 浓集因子 放射性同位素 污染

领　　域： [环境科学与工程]