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Long-Term Measurements of Radon and Thoron Exhalation Rates from the Ground Using the Vertical Distributions of Their Activity Concentrations
https://repo.qst.go.jp/records/82887
https://repo.qst.go.jp/records/828870c43b4a3-413e-41a8-ba1a-4b0e7de17cc7
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-05-27 | |||||
| タイトル | ||||||
| タイトル | Long-Term Measurements of Radon and Thoron Exhalation Rates from the Ground Using the Vertical Distributions of Their Activity Concentrations | |||||
| 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 |
Bobbo Modibo, Oumar
× Bobbo Modibo, Oumar× Yuki, Tamakuma× Takahito, Suzuki× Yamada, Ryohei× Weihai, Zhuo× Chutima, Kranrod× Kazuki, Iwaoka× Akata, Naofumi× Masahiro, Hosoda× Shinji, Tokonami× Yuki, Tamakuma× Takahito, Suzuki× Weihai, Zhuo× Chutima, Kranrod× Kazuki, Iwaoka× Akata, Naofumi× Masahiro, Hosoda× Shinji, Tokonami |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A long-term measurement technique of radon exhalation rate was previously developed using a passive type radon and thoron discriminative monitor and a ventilated type accumulation chamber. In the present study, this technique was applied to evaluate the thoron exhalation rate as well, and long-term measurements of radon and thoron exhalation rates were conducted for four years in Gifu Prefecture. The ventilated type accumulation chamber (0.8 × 0.8 × 1.0 m3) with an open bottom was embedded 15 cm into the ground. The vertical distributions of radon and thoron activity concentrations from the ground were obtained using passive type radon-thoron discriminative monitors (RADUETs). The RADUETs were placed at 1, 3, 10, 30, and 80 cm above the ground inside the accumulation chamber. The measurements were conducted from autumn 2014 to autumn 2018. These long-term results were found to be in good agreement with the values obtained by another methodology. The radon exhalation rates from the ground showed a clearly seasonal variation. Similar to findings of previous studies, radon exhalation rates from summer to autumn were relatively higher than those from winter to spring. In contrast, thoron exhalation rates were not found to show seasonal variation. | |||||
| 書誌情報 |
International Journal of Environmental Research and Public Health 巻 18, 号 4, p. 1489, 発行日 2021-02 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1660-4601 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.3390/ijerph18041489 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.mdpi.com/1660-4601/18/4/1489/htm | |||||
