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EVALUATION OF A RADON AIR MONITOR IN THE MEASUREMENT OF RADON CONCENTRATION IN WATER IN COMPARISON WITH A LIQUID SCINTILLATION COUNTER.
Higuchi, Shoko; Kamishiro, Yuuki; Ishihara, Maki; Yasuoka, Yumi; Mori, Yasunori; Hosoda, Masahiro; Iwaoka, Kazuki; Tokonami, Shinji; Takahashi, Rikiya; Janik, Miroslaw; Muto, Jun; Nagahama, Hiroyuki; Mukai, Takahiro.
Affiliation
  • Higuchi S; Kobe Pharmaceutical University, Kobe City, Hyogo, Japan.
  • Kamishiro Y; Kobe Pharmaceutical University, Kobe City, Hyogo, Japan.
  • Ishihara M; Kobe Pharmaceutical University, Kobe City, Hyogo, Japan.
  • Yasuoka Y; Kobe Pharmaceutical University, Kobe City, Hyogo, Japan.
  • Mori Y; Mie Prefecture Health and Environment Research Institute, Yokkaichi City, Mie, Japan.
  • Hosoda M; Hirosaki University, Hirosaki City, Aomori, Japan.
  • Iwaoka K; National Institutes for Quantum and Radiological Science and Technology, Chiba City, Chiba, Japan.
  • Tokonami S; Hirosaki University, Hirosaki City, Aomori, Japan.
  • Takahashi R; Hirosaki University Hospital, Hirosaki City, Aomori, Japan.
  • Janik M; National Institutes for Quantum and Radiological Science and Technology, Chiba City, Chiba, Japan.
  • Muto J; Department of Geoenvironmental Science, Graduate School of Science, Tohoku University Sendai City, Miyagi, Japan.
  • Nagahama H; Department of Geoenvironmental Science, Graduate School of Science, Tohoku University Sendai City, Miyagi, Japan.
  • Mukai T; Kobe Pharmaceutical University, Kobe City, Hyogo, Japan.
Radiat Prot Dosimetry ; 184(3-4): 426-429, 2019 Oct 01.
Article in En | MEDLINE | ID: mdl-31038694
The World Health Organisation (WHO) recommends that the concentration of radon in water should be no more than 100 kBq m-3 (100 BqL-1) and the Codex Alimentarius Commission states that the limit of quantification (LOQ) of a method should be no more than one-fifth of this value. In this study, a degassing method with an RAD7 device was used to measure radon concentrations in water, compared to a liquid scintillation counter (LSC) method used as the reference, to investigate whether the numerical value of the LOQ of this method was more than 1/5 (20 kBq m-3) of 100 kBq m-3. The degassing method with leak prevention was shown to reach a target value of 20 kBq m-3 or less under a relative humidity of 6% or lower in the chamber of the RAD7 device. Accordingly, the RAD7 degassing method with leak prevention can be used to accurately measure radon concentrations in water within the guidance level set out by the WHO.
Subject(s)

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Scintillation Counting / Water Pollutants, Radioactive / Radiation Monitoring / Radon Type of study: Evaluation_studies Language: En Journal: Radiat Prot Dosimetry Year: 2019 Type: Article Affiliation country: Japan

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Scintillation Counting / Water Pollutants, Radioactive / Radiation Monitoring / Radon Type of study: Evaluation_studies Language: En Journal: Radiat Prot Dosimetry Year: 2019 Type: Article Affiliation country: Japan