日本采集的食用蘑菇中¹³⁷Cs和⁴⁰K的浓度及其食用所致的辐射剂量。

Concentrations of 137Cs and 40K in edible mushrooms collected in Japan and radiation dose due to their consumption.

作者信息

Ban-nai T, Muramatsu Y, Yoshida S

机构信息

National Institute of Radiological Sciences, Isozaki, Ibaraki, Japan.

出版信息

Health Phys. 1997 Mar;72(3):384-9. doi: 10.1097/00004032-199703000-00005.

DOI:10.1097/00004032-199703000-00005

PMID:9030839

Abstract

To estimate radiocesium intake due to eating mushrooms, about 100 samples belonging to 11 species were analyzed to establish representative values for 137Cs and 40K in common edible mushrooms available in food markets. Concentration ranges were <0.047-39 Bq kg(-1) (wet wt) for 137Cs and 30-210 Bq kg(-1) (wet wt) for 40K. The median concentrations were 1.3 Bq kg(-1) (wet wt) for 137Cs and 97 Bq kg(-1) (wet wt) for 40K. The 137Cs concentrations in cultivated mushrooms were markedly lower than those in wild mushrooms. The annual intake of 137Cs per person through mushrooms was calculated (using analytical results and food consumption data in Japan) to be 6.0 Bq for 137Cs, which is about 32% of the total dietary intake of this nuclide. The effective dose equivalent of 137Cs through mushroom was estimated to be 7.7 x 10(-8) Sv (range estimated from the standard deviation: 3.0 x 10(-8) - 2.0 x 10(-7)).

摘要

为估算因食用蘑菇而摄入的放射性铯，分析了属于11个品种的约100个样本，以确定食品市场上常见可食用蘑菇中¹³⁷Cs和⁴⁰K的代表值。¹³⁷Cs的浓度范围为<0.047 - 39 Bq kg⁻¹（湿重），⁴⁰K的浓度范围为30 - 210 Bq kg⁻¹（湿重）。¹³⁷Cs的中位数浓度为1.3 Bq kg⁻¹（湿重），⁴⁰K的中位数浓度为97 Bq kg⁻¹（湿重）。栽培蘑菇中的¹³⁷Cs浓度明显低于野生蘑菇中的浓度。通过蘑菇每人每年摄入¹³⁷Cs的量（使用日本的分析结果和食品消费数据计算）为6.0 Bq，约占该核素膳食总摄入量的32%。通过蘑菇摄入¹³⁷Cs的有效剂量当量估计为7.7×10⁻⁸ Sv（根据标准偏差估计范围：3.0×10⁻⁸ - 2.0×10⁻⁷）。