| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2019-03-05 |
| タイトル |
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タイトル |
Can I-129 track Cs-135, U-236, Pu-239, and Pu-240 apart from I-131 in soil samples from Fukushima Prefecture, Japan? |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Yang, Guosheng
Tazoe, Hirofumi
Yamada, Masatoshi
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| 著者所属 |
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Hirosaki Univ, Inst Radiat Emergency Med, Dept Radiat Chem |
| 著者所属 |
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Hirosaki Univ, Inst Radiat Emergency Med, Dept Radiat Chem |
| 著者所属 |
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Hirosaki Univ, Inst Radiat Emergency Med, Dept Radiat Chem |
| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
In the present study, I-129 activities and I-129/I-127 atom ratios were measured in 60 soil samples contaminated by the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident. The I-127 concentrations, I-129 activities, and I-129/I-127 atom ratios in dry-weight were observed to be 0.121-23.6 mg kg(-1), 0.962-275 mBq kg(-1), and (0.215-79.3) x 10(-7), respectively. The maximum values of both I-129 activities and I-129/I-127 atom ratios in Japanese soil increased about three orders of magnitude due to this accident. The equation logy = 0.877logx + 0.173 (Pearson's r = 0.936; x, I-129 concentration; y, I-131 concentration; decay-corrected to March 11, 2011) instead of a simple constant may be a better way to express the relationship between I-129 and I-131 in Japanese soil affected by both global fallout and FDNPP accident fallout. In addition, a moderate correlation was observed between I-129 and Cs-135 (logy = 0.624logx + 1.01, Pearson's r = 0.627; x, I-129 activity; y, Cs-135 activity). However, I-129 presented larger fractionations with less volatile radionuclides, such as U-236, Pu-239, and Pu-240. These findings indicated Cs-135 could be roughly estimated from I-129 or I-131; this is advantageous as fewer Cs-135 data are available and Cs-135/Cs-137 is being considered a promising tracer during radiocesium source identification. |
| 書誌情報 |
SCIENTIFIC REPORTS
巻 7,
p. 15369,
発行日 2017-11-13
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| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2045-2322 |
| DOI |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
10.1038/s41598-017-15714-w |
| 著者版フラグ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 資源タイプ |
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値 |
Article |
s41598-017-15369 (1.5 MB)
