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
この論文をさがす
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
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1050855676752405376
-
- NII論文ID
- 120005669617
-
- NII書誌ID
- AN00250774
-
- ISSN
- 02869640
-
- HANDLE
- 20.500.12000/32494
-
- NDL書誌ID
- 026809754
-
- 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