|
|
福島県立医科大学学術成果リポジトリ = Fukushima Medical University Repository >
A 医学部 = School of Medicine >
a10 学術雑誌論文等 = Journal Article >
このアイテムの引用には次の識別子を使用してください:
http://ir.fmu.ac.jp/dspace/handle/123456789/1592
|
| 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 |
| 著者: | Igarashi, Yu
Kim, Eunjoo
Hashimoto, Shozo
Tani, Kotaro
Yajima, Kazuaki
Iimoto, Takeshi
Ishikawa, Tetsuo
Akashi, Makoto
Kurihara, Osamu |
| 学内所属: | 放射線物理化学講座 |
| 誌名/書名: | Health physics |
| 巻: | 119 |
| 号: | 6 |
| 開始ページ: | 733 |
| 終了ページ: | 745 |
| 発行日: | 2020年12月 |
| 抄録: | 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, I. In a previous dose estimation, we used the results of whole-body counter (WBC) measurements targeting Cs and Cs, based on the assumption that these radioisotopes were incorporated at the same time as I 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 cesium 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 cesium detection rates (and the 90th percentile values of the Cs intake) of the prompt and late evacuees were about 20% (5.4 × 10 Bq) and 60% (1.6 × 10 Bq), respectively. Approximately 20% of the individuals analyzed were categorized as late evacuees. These differences in cesium 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. |
| 出版者: | Lippincott Williams & Wilkins |
| 本文の言語: | eng |
| このページのURI: | http://ir.fmu.ac.jp/dspace/handle/123456789/1592 |
| 本文URL: | http://ir.fmu.ac.jp/dspace/bitstream/123456789/1592/1/HealthPhys_119_p733.pdf |
| ISSN: | 0017-9078
1538-5159 |
| DOI: | 10.1097/HP.0000000000001249 |
| PubMed番号: | 32384372 |
| 異版(出版者版等): | https://doi.org/10.1097/HP.0000000000001249 |
| 権利情報: | © 2020 Health Physics Society. This is a non-final version of an article published in final form in "Health Phys. 2020 Dec;119(6):733-745". |
| 出現コレクション: | a10 学術雑誌論文等 = Journal Article
e110 学術雑誌論文等 = Journal Article
|
このリポジトリに保管されているアイテムは、他に指定されている場合を除き、著作権により保護されています。
|
