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Effective half-lives of radiocesium in different Japanese tree species
https://repo.qst.go.jp/records/72059
https://repo.qst.go.jp/records/72059c6c4a71c-0acb-4648-8d69-b8eee24c7662
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2016-11-17 | |||||
| タイトル | ||||||
| タイトル | Effective half-lives of radiocesium in different Japanese tree species | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Tagami, Keiko
× Tagami, Keiko× Uchida, Shigeo× Ishii, Nobuyoshi× 田上 恵子× 内田 滋夫× 石井 伸昌 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Radiocesium decreasing rates in trees have been reported after nuclear accidents; the rate is expressed as effective half-life (Teff) and we recently reported the value for persimmon trees (Tagami and Uchida, J. Environ. Radioact. 141, 8-13, 2015). It is important to compare these values observed after the Fukushima and Chernobyl accidents to understand the difference/similarity of radiocesium fate in the environments and radiation effects to human and biota from these accidents. Therefore, we did literature survey and field observation to compare Teff in trees. In order to reduce the climate effect, we selected 137Cs data in Japanese black pine and tea tree leaves, and Citrus unshiu fruits collected in Japan from 1985 to 2013 using the environmental radiation database (Nuclear Regulation Authority, http://search.kankyo-hoshano.go.jp/servlet/search.top, in Japanese, 2016). From the database, we found direct deposition effect from the Chernobyl accident (1986-1988) and the Fukushima accident (2011-2013). We also measured 137Cs concentrations in Citrus natsudaidai for comparison from September 2011 to March 2014 at our institute campus in Chiba City, Japan. |
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| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The 2nd international conference on radioecological concentration processes | |||||
| 発表年月日 | ||||||
| 日付 | 2016-11-07 | |||||
| 日付タイプ | Issued | |||||
