沖縄島の陸水中ラドン濃度

• 富濱, まどか

• 山入端, 茜

• 古川, 雅英

• Tomihama, Madoka

• Yamanoha, Akane

• Furukawa, Masahide

書誌事項

タイトル別名

• Radon Concentration of Inland Water in Okinawa Island, Japan
• オキナワトウ ノ リクスイ チュウ ラドン ノウド

抄録

As a part of study to estimate the background radiation level in Japan, radon (^<222>Rn) concentrations of inland waters collected from Okinawa Island, main island of Okinawa prefecture, were measured with a simple liquid scintillation counter. The radon is an alpha emitting natural radioactive element with half-life of 3.8 days originated from the decay of ^<238>U. The arithmetic mean± standard deviation of the concentration of subsoil waters collected at 29 points was calculated to be 23.1±6.3 Bq L^-1 Relatively high concentrations of 36 Bq L^ -1 and 43 Bq L^-1 were found in Motobu area, northwestern part of the island. Also the concentrations of ground water samples collected at 4 points in Gyokusen-dou, a limestone cave in the southern part of the island, were estimated to be ND (< 2.3 Bq L^-1) - 4.6 Bq L^- 1.

紀要論文

収録刊行物

• 琉球大学理学部紀要

  琉球大学理学部紀要 (100), 1-4, 2015-09-30

  琉球大学理学部

詳細情報

• CRID: 1050855676752405376
• NII論文ID: 120005669617
• NII書誌ID: AN00250774
• ISSN: 02869640
• HANDLE: 20.500.12000/32494
• NDL書誌ID: 026809754
• Web Site: https://u-ryukyu.repo.nii.ac.jp/records/2008088
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026809754
• 本文言語コード: ja
• 資料種別: departmental bulletin paper
• データソース種別:
  • IRDB
  • NDL
  • CiNii Articles