Agricultural aspects of radiocontamination induced by the Fukushima nuclear accident — A survey of studies by the Univ. of Tokyo Agricultural Dept. (2011–2016)

Abstract

Immediately after the Fukushima nuclear power plant accident, a team of 40–50 researchers at the Graduate School of Agricultural and Life Sciences at the University of Tokyo began to analyze the behavior of radioactive materials in the fallout regions. The fallout has remained in situ and become strongly adsorbed within the soil over time. 137Cs was found to bind strongly to the fine clay, weathered biotite, and organic matter in the soil; therefore, it has not mobilized from mountainous regions, even after heavy rainfall. In farmland, the quantity of 137Cs in the soil absorbed by crop plants was small. The downward migration of 137Cs in soil is now estimated at 1–2 mm/year. The intake of 137Cs by trees occurred through the bark and not from the roots. This report summarizes the findings of research across a wide variety of agricultural specialties.

Состав, Структура И Селективная Сорбция Ионов Цезия Алюмосиликатным Сорбентом, Полученным Из Отходов Калийногопроизводства ОАО «Беларуськалий»

“…До настоящего времени остается нерешенной проблема снижения миграции 137 Cs в экосистемах некоторых районов России, Беларуси, Украины и Японии, загрязненных в результате аварий на Чернобыльской АЭС, АЭС «Фукусима-1» и др. Для снижения миграции 137 Cs в экосистемах требуется большое количество дешевых и эффективных сорбционных материалов с высоким содержанием таких глинистых минералов, как иллит и монтмориллонит [19][20][21].…”