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Change of radiocesium concentration in tree leaves: two years’ observations following the Fukushima Daiichi Nuclear Power Plant accident
https://repo.qst.go.jp/records/54505
https://repo.qst.go.jp/records/5450589820e34-37d9-4dc1-8bac-a89bfa3fc688
| Item type | 会議発表論文 / Conference Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-08-12 | |||||
| タイトル | ||||||
| タイトル | Change of radiocesium concentration in tree leaves: two years’ observations following the Fukushima Daiichi Nuclear Power Plant accident | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
| 資源タイプ | conference paper | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
内田, 滋夫
× 内田, 滋夫× 田上, 恵子× 内田 滋夫× 田上 恵子 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Measurement of radiocesium concentrations in leaves of six tree species collected on the grounds of the National Institute of Radiological Sciences (ca. 220 km south from the Fukushima Daiichi Nuclear Power Plant) has been carried out for two years following the nuclear power plant accident to understand the concentration change with time. Three deciduous trees (Somei-yoshino cherry, Japanese chestnut, and ginkgo) and three evergreen trees (red robin, Japanese black pine, and camellia) were studied. It was found that the Cs-137 concentrations in tree leaves of each species decreased with time exponentially. The effective half-lives of radiocesium in these tree species were calculated, and the values ranged from 156 to 240 d. Although the studied trees were of different types (deciduous and evergreen), interestingly, their values were similar. As their growing climate conditions were the same, they had similar decreasing rates. The radiocesium concentrations in tree leaves and herbaceous plants were also compared for NIRS samples and samples from Fukushima Prefecture. It was found that the concentrations in tree leaves were almost the same as those in herbaceous plants for both sampling areas. | |||||
| 書誌情報 |
WM2014 Conference Proceedings 号 14150, p. 1-6, 発行日 2014-08 |
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| ISBN | ||||||
| 識別子タイプ | ISBN | |||||
| 関連識別子 | 9780983618638 | |||||
