Measurement of Indoor Radon-222 and Radon-220 Concentrations in Central Japan

Journal Article · Thu Aug 07 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2991205· OSTI ID:21152437

Oka, Mitsuaki; Shimo, Michikuni ^[1]; Tokonami, Shinji; Sorimachi, Atsuyuki; Takahashi, Hiromichi; Ishikawa, Tetsuo ^[2]

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1. Graduate School of Health Science, Fujita Health University 1-98, Dengakugakubo, Kutsukake, Tyoake, Aichi, 470-1192 (Japan)
2. National Institute of Radiological Sciences 4-9-1, Anagawa, Inage, Chiba 263-8555 (Japan)

A passive-type radon/thoron detector was used for measuring indoor radon and thoron concentrations at 90 dwellings in Aichi and Gifu prefectures in central Japan during 90 days from December, 2006 to March, 2007. The radon and thoron concentrations were 21.1 Bq/m3 and 25.1 Bq/m3, respectively. The dose due to radon and thoron in dwellings was roughly evaluated as 0.7 mSv/y and 2.4 mSv/y, respectively. The examination of the geological factor and house condition having an effect on indoor radon concentration was performed.

• OSTI ID: 21152437
• Journal Information: AIP Conference Proceedings, Vol. 1034, Issue 1; Conference: NRE-VIII: 8. International symposium on the natural radiation environment, Buzios, RJ (Brazil), 7-12 Oct 2007; Other Information: DOI: 10.1063/1.2991205; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ALPHA DETECTION
DIELECTRIC TRACK DETECTORS
ECOLOGY
GEOLOGY
HOUSES
JAPAN
RADIATION DOSES
RADIATION MONITORING
RADON
RADON 220
RADON 222