Baeza A, Guillén F J
Department of Physics, University of Extremadura, Avda. Universidad s/n, 10071 Cáceres, Spain.
Radiat Prot Dosimetry. 2004;111(1):97-100. doi: 10.1093/rpd/nch368.
The dose due to ingestion of mushrooms depends on their radioactive content. However, not all the mass of the mushroom ingested is digested and assimilated completely by man. To analyse the degree of assimilation of the radioactive content of mushrooms, we have carried out culture under controlled laboratory conditions for Pleurotus eryngii mushrooms to which we added known activities of 134Cs, 85Sr and 239Pu. We then applied the Van Soest method to the fruiting bodies, which were obtained in order to determine the fraction of these radionuclides associated with the major components of the cell that are assimilable by man. Finally, on the basis of the results, we determined the dose due to 137Cs, 90Sr and (239+240)Pu for several mushroom species collected in different natural and semi-natural ecosystems in Spain.
因摄入蘑菇而产生的剂量取决于其放射性含量。然而，并非摄入的蘑菇全部质量都能被人体完全消化和吸收。为分析蘑菇放射性物质的吸收程度，我们在实验室控制条件下对杏鲍菇进行培养，并向其中添加已知活度的¹³⁴Cs、⁸⁵Sr和²³⁹Pu。然后，我们将范·索斯特方法应用于所获得的子实体，以确定这些放射性核素与人体可吸收的细胞主要成分相关的比例。最后，根据结果，我们确定了西班牙不同自然和半自然生态系统中采集的几种蘑菇物种因¹³⁷Cs、⁹⁰Sr和(²³⁹ + ²⁴⁰)Pu产生的剂量。
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