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河川土壌に対する放射性セシウムの収脱着挙動,2; 収脱着分析

Sorption and desorption of radiocesium to river soils, 2; Sorption and desorption measurement

舘 幸男  ; 佐藤 智文; 寺島 元基  ; 武田 智津子*; 藤原 健壮 ; 飯島 和毅  

Tachi, Yukio; Sato, Tomofumi; Terashima, Motoki; Takeda, Chizuko*; Fujiwara, Kenso; Iijima, Kazuki

福島第一原子力発電所周辺の河川流域における放射性Csの環境動態評価に資するため、多様な河川土壌に対して、粒径組成、有機物含有量、陽イオン交換容量、粘土鉱物組成、RIP等のCs収脱着に関わる基本特性データを取得するとともに、特性データ間の相関関係からCsの収脱着を支配するメカニズムを検討した。

To predict the transport behaviors of radiocesium in river systems around the Fukushima Dai-ichi Nuclear Power Plant, the sorption and desorption of Cs on various types of river soils was investigated as functions of Cs concentration and reaction time. The key factors controlling the Cs transport were discussed based on types of clay minerals, organics, sorption kinetics, etc.

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