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Activity concentration of natural radionuclides and radon and thoron exhalation rates in rocks used as decorative wall coverings in Japan
https://repo.qst.go.jp/records/46875
https://repo.qst.go.jp/records/46875b92707f0-70ca-42d5-b8d5-292d8fa70787
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-10-21 | |||||
| タイトル | ||||||
| タイトル | Activity concentration of natural radionuclides and radon and thoron exhalation rates in rocks used as decorative wall coverings in Japan | |||||
| 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 |
Iwaoka, Kazuki
× Iwaoka, Kazuki× Hosoda, Masahiro× Tabe, Hiroyuki× Ishikawa, Tetsuo× Tokonami, Shinji× Yonehara, Hidenori× 岩岡 和輝× 田部 裕章× 石川 徹夫× 米原 英典 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In Japan, many dwellings have decorative wall coverings made from granite, andesite, tuff, gabbro, and marble. However, information regarding activity concentrations and radon (222Rn) and thoron (220Rn) exhalation rates for such rocks is very scarce. Therefore, samples of the granite, andesite, tuff, and marble that are used as wall coverings in Japan were collected from mining companies, and their activity concentrations and 222Rn and 220Rn exhalation rates were measured. Dose estimations for inhabitants living in houses built with these materials were also carried out. The activity concentration of natural radionuclides in all the materials was lower than the critical values described by the International Atomic Energy Agency (IAEA) (10,000 Bq kgj1 for 40K and 1,000 Bq kgj1 for all other radionuclides of natural origin). The maximum values of 222Rn and 220Rn mass exhalation rates for the granite samples were 0.12 and 430 mBq kgj1 sj1, and those for the area exhalation rates were 1.8 and 6300 mBq mj2 sj1, respectively; these values are higher than those for other samples. The maximum value of effective doses to inhabitants was 0.68 mSv yj1, which is lower than the intervention exemption level (1 mSv yj1) given in the International Commission on Radiological Protection (ICRP) Publication 82. |
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| 書誌情報 |
Health Physics 巻 104, 号 1, p. 41-50, 発行日 2013-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0017-9078 | |||||
