The transfer of radiocesium from the bark to the stemflow of chestnut trees (Castanea crenata) contaminated by radionuclides from the Fukushima Dai-ichi nuclear power plant accident
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- 作者：Yoshito Sasaki ; sasaki.yoshito@jaea.go.jp" class="auth_mail" title="E-mail the corresponding author ; Hironobu Abe ; Katsuaki Mitachi ; Takayoshi Watanabe ; Yasuo Ishii ; Tadafumi Niizato
- 关键词：Fukushima Daiichi ; Cesium ; Deciduous broadleaf tree ; Stemflow ; Chestnut
- 刊名：Journal of Environmental Radioactivity
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：161
- 期：Complete
- 页码：58-65
- 全文大小：1936 K
文摘
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We examined the behavior of radiocesium on the bark of chestnut trees and its transfer into the stemflow.
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The radiocesium concentration in the bark was found to be approximately 10 times that in the wood.
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The ratio of the 137Cs concentration in the bark (Bq/kg) to that in the stemflow (Bq/L) was approximately 103.
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It was deduced that radiocesium and electrolytes have the same elution mechanism from the trees.
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The radiocesium in the stemflow <0.45 μm fraction was determined to be an almost dissolved species.