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Difference in the Cesium Body Contents of Affected Area Residents Depending on the Evacuation Timepoint Following the 2011 Fukushima Nuclear Disaster
https://repo.qst.go.jp/records/77545
https://repo.qst.go.jp/records/77545e7071e7f-45a0-4903-9d95-499d7ccde1d3
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-11-21 | |||||
| タイトル | ||||||
| タイトル | Difference in the Cesium Body Contents of Affected Area Residents Depending on the Evacuation Timepoint Following the 2011 Fukushima Nuclear Disaster | |||||
| 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_6501 | |||||
| 資源タイプ | journal article | |||||
| 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 |
Igarashi, Yu
× Igarashi, Yu× Eunjoo, Kim× Hashimoto, Shozo× Tani, Kotaro× Yajima, Kazuaki× Iimoto, Takeshi× Ishikawa, Tetsuo× Akashi, Makoto× Kurihara, Osamu× Yu, Igarashi× Eunjoo, Kim× Shozo, Hashimoto× Kotaro, Tani× Kazuaki, Yajima× Takeshi, Iimoto× Tetsuo, Ishikawa× Makoto, Akashi× Osamu, Kurihara |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Estimating the internal thyroid dose received by residents involved in the 2011 Fukushima Daiichi Nuclear Power Plant (FDNPP) accident has been a challenging task because of the shortage of direct human measurements related to the largest contributing radioisotope to the dose, 131I. In a previous dose estimation, we used the results of whole-body counter (WBC) measurements targeting 134Cs and 137Cs, based on the assumption that these radioisotopes were incorporated at the same time as 131I in the early phase of the accident. The main purpose of this study was to clarify whether the trace of the early intake remained in the WBC measurements that were started several months after the accident. In the present work, WBC data of 1,639 persons from Namie town, one of the heavily contaminated municipalities, were analyzed together with their evacuation behavior data. The results demonstrated that the Cs detection rate in the WBC results was several times higher in the late evacuees (who evacuated outside the 20-km radius of the FDNPP at 3:00 p.m. [Japanese Local Time] on 12 March or later) compared to the prompt evacuees (who evacuated before 3:00 p.m. on 12 March). Among the adults, the Cs detection rates (and the 90th percentile values of the 137Cs intake) of the prompt and late evacuees were about 20% (5.4 103 Bq) and 60% (1.6 104 Bq), respectively. Approximately 20% of the individuals analyzed were categorized as late evacuees. These differences in Cs would be caused by exposure to the radioactive plume in the afternoon on 12 March, which was likely to influence the late evacuees. On the other hand, the intake on 15 March when the largest release event occurred was expected to be relatively small for Namie town's residents. In conclusion, the trace of the early intake remained in the WBC measurements, although this would not necessarily be true for all subjects. The results obtained from this study would provide useful information for the reconstruction of the early internal thyroid doses from radioiodine in the future. | |||||
| 書誌情報 |
Health Physics 巻 119, 号 6, p. 733-745, 発行日 2019-11 |
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| 出版者 | ||||||
| 出版者 | Lippincott Williams & Wilkins | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0017-9078 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1097/HP.0000000000001249 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://journals.lww.com/health-physics/Fulltext/2020/12000/Difference_in_the_Cesium_Body_Contents_of_Affected.15.aspx | |||||
