Environmental Research Institute of the Supervising Scientist, Darwin, Australia.
Università Cattolica del Sacro Cuore, Piacenza, Italy.
J Radiol Prot. 2022 May 4;42(2). doi: 10.1088/1361-6498/ac6046.
Under the International Atomic Energy Agency (IAEA) Modelling and Data for Radiological Impact Assessments (MODARIA II) Programme, Working Group 4 activities included collating radionuclide transfer data from Japan following the Fukushima Daiichi Nuclear Power Plant accident and separately collating concentration ratio (CR) data for root uptake of radionuclides by crops grown in tropical and arid climates. In this paper, the newly compiled radiocaesium CR data for fruit from Japan, tropical and arid climates have been combined with the data originally compiled for the IAEA Technical Reports Series No. 472 (TRS 472) and additional data identified from the literature to produce an enhanced MODARIA II dataset of fruit radiocaesium CR values. Statistical analysis of the MODARIA II dataset by climate class (based on the Köppen-Geiger climate classification) indicated that the CR values for tropical climates were significantly higher (< 0.05) than those for arid, temperate and cold climates. Statistical analysis of the MODARIA II dataset by soil group (based on soil texture) indicated that the CR values for coral sand soil (tropical climates only) and organic soil (temperate climates only) were significantly higher (< 0.05) than those for the clay, loam and sand soil groups. Statistical analysis of the MODARIA II dataset by plant group (based on plant morphology) indicated that the CR values for non-woody trees (tropical climate bias) were significantly higher (< 0.05) than those for herbaceous plants, shrubs and woody trees. Comparison of the MODARIA II dataset with original TRS 472 values showed only small changes in the fruit radiocaesium CR values for herbaceous plants and shrubs in temperate climates. There was a decrease in the CR values for woody trees in temperate climate across all soil groups. There was also a decrease in the CR values for tropical climates for all comparable soil groups.
在国际原子能机构（IAEA）的建模和放射性影响评估数据（MODARIA II）计划下，第 4 工作组的活动包括：整理福岛第一核电站事故后日本的放射性核素迁移数据，以及分别整理在热带和干旱气候条件下生长的作物对放射性核素根部吸收的浓度比（CR）数据。本文将日本、热带和干旱气候条件下新编译的果实放射性铯 CR 数据与最初为 IAEA 技术报告系列第 472 号（TRS 472）编译的数据以及从文献中确定的其他数据结合起来，生成了一个增强的 MODARIA II 数据集，其中包含果实放射性铯 CR 值。按气候类别（基于科彭-盖革气候分类）对 MODARIA II 数据集进行的统计分析表明，热带气候的 CR 值明显高于干旱、温带和寒冷气候（<0.05）。按土壤组（基于土壤质地）对 MODARIA II 数据集进行的统计分析表明，珊瑚砂土壤（仅热带气候）和有机土壤（仅温带气候）的 CR 值明显高于粘土、壤土和沙土组（<0.05）。按植物组（基于植物形态）对 MODARIA II 数据集进行的统计分析表明，非木本树木（热带气候偏向）的 CR 值明显高于草本植物、灌木和木本树木（<0.05）。MODARIA II 数据集与原始 TRS 472 值的比较表明，温带气候草本植物和灌木的果实放射性铯 CR 值仅略有变化。所有土壤组的温带气候木本树木的 CR 值均下降。所有可比土壤组的热带气候 CR 值也有所下降。
