Gas M I, Segovia N, Morton O, Cervantes M L, Godinez L, Peña P, Acosta E
ININ, Mexico DF, Mexico.
Sci Total Environ. 2000 Oct 30;262(1-2):73-89. doi: 10.1016/s0048-9697(00)00574-x.
137Cs and 40K specific activity together with major and trace elements were determined in soil samples and in different edible wild mushroom species collected from a seminatural temperate forest ecosystem located in the central part of the Mexican Volcanic Belt. The activity measurements were made using a gamma-ray spectrometer system with a high purity germanium (HpGe) detector. The major and trace elements were determined using emission spectrography and mass spectrometry, respectively. The aggregated transfer factors for 137Cs were estimated in 30 local mushroom species collected from 1993 to 1999. Differences as large as three orders of magnitude were observed. The contribution of mushrooms for the total 137Cs dietary intake by the local population was estimated to be 37%. Mushrooms also showed to be good accumulators for Rb, Cu, Cs and Se.
对从墨西哥火山带中部一个半自然温带森林生态系统采集的土壤样本和不同可食用野生蘑菇物种中的¹³⁷Cs和⁴⁰K比活度以及主要和微量元素进行了测定。活度测量使用了带有高纯锗（HpGe）探测器的伽马射线光谱仪系统。主要和微量元素分别使用发射光谱法和质谱法进行测定。对1993年至1999年采集的30种当地蘑菇物种中¹³⁷Cs的累积转移因子进行了估算。观察到差异高达三个数量级。据估计，蘑菇对当地居民¹³⁷Cs膳食总摄入量的贡献为37%。蘑菇还被证明是Rb、Cu、Cs和Se的良好蓄积体。
