屋内ラドン濃度全国調査

• 藤元 憲三

  放射線医学総合研究所人間環境研究部

• 小林 定喜

  放射線医学総合研究所人間環境研究部

• 内山 正史

  放射線医学総合研究所人間環境研究部

• 土居 雅広

  第4研究グループ

• 中村 裕二

  第4研究グループ

書誌事項

タイトル別名

• Nationwide Indoor Radon Survey in Japan.
• オクナイ ラドン ノウド ゼンコク チョウサ

抄録

The final results of a nationwide indoor radon survey are presented based on one year measurements at more than 7, 000 houses throughout Japan. In conclusion, the annual average indoor radon concentrations in 5, 717 houses are finally obtained as the output of the survey after scrutinizing the raw data of more than 28, 000 measurements. The arithmetic mean and its standard deviation of radon concentration are given to be 20.8 and 18.8Bqm^-3, respectively. The median, 90 percentile and 99.5 percentile were 16.0, 35.5 and 138Bqm^-3, respectively. The arithmetic mean, median and 90 percentile of each prefecture are also presented to identify the regional variation of radon concentrations. Radon concentrations in wooden houses show regional differences closely related to granite distribution. However, radon concentrations in non-wooden houses show no typical pattern related to geology. The equivalent dose due to radon progeny in Japan is estimated to be 0.59mSvy^-1 applying the same assumptions given in the UNSCEAR 1993 Report to the arithmetic mean obtained in this survey.

収録刊行物

• 保健物理

  保健物理 32 (1), 41-51, 1997

  日本保健物理学会

キーワード

• equivalent dose
• indoor
• nationwide
• passive detector
• radon
• survey
• wooden house

詳細情報

• CRID: 1390001204289367552
• NII論文ID: 10002136345
• NII書誌ID: AN00228458
• DOI: 10.5453/jhps.32.41
• ISSN: 18847560
• ISSN: 03676110
• ISSN: http://id.crossref.org/issn/00179078
• NDL書誌ID: 4184216
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4184216
• Web Site: https://search.jamas.or.jp/link/ui/1997168137
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可