Journal of Radioanalytical and Nuclear Chemistry

, Volume 306, Issue 1, pp 317–323 | Cite as

A pilot study for dose evaluation in high-level natural radiation areas of Yangjiang, China

  • Yasutaka Omori
  • Shinji Tokonami
  • Tetsuo Ishikawa
  • Sarata Kumar Sahoo
  • Naofumi Akata
  • Atsuyuki Sorimachi
  • Masahiro Hosoda
  • Chanis Pornnumpa
  • Paitoon Wanabongse
  • Hiromi Kudo
  • Ye-Jing Hu
  • Yong-Xiang Ao
  • Xiao-Liang Li
  • Kun Li
  • Ying-Hua Fu
  • Quan-Fu Sun
  • Suminori Akiba
Article

Abstract

A pilot study to measure ambient gamma dose rate and radon and thoron progeny concentrations was made for eight dwellings selected in Yangjiang, China. Indoor and outdoor ambient gamma dose rates were 110–370 and 100–220 nGy h−1, respectively. Doses received from indoor terrestrial radiation were estimated to be 0.6–1.8 mSv year−1. Radon, thoron and thoron progeny concentrations were 19–98, 18–1120 and 0.4–10.3 Bq m−3, respectively. This pilot study showed that the position of passive-type monitors to be placed and the deployment period should be carefully determined for estimating reliable annual average concentrations.

Keywords

Ambient gamma dose rate External exposure High background radiation area Internal exposure Thoron Yangjiang 

Supplementary material

10967_2015_4286_MOESM1_ESM.eps (538 kb)
Supplementary material 1 (EPS 538 kb) Fig. S1 Spatial distribution of ambient gamma dose rate at the site near Yangjiang

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2015

Authors and Affiliations

  • Yasutaka Omori
    • 1
  • Shinji Tokonami
    • 2
  • Tetsuo Ishikawa
    • 1
  • Sarata Kumar Sahoo
    • 3
  • Naofumi Akata
    • 4
  • Atsuyuki Sorimachi
    • 1
  • Masahiro Hosoda
    • 5
  • Chanis Pornnumpa
    • 5
  • Paitoon Wanabongse
    • 2
  • Hiromi Kudo
    • 5
  • Ye-Jing Hu
    • 6
  • Yong-Xiang Ao
    • 7
  • Xiao-Liang Li
    • 8
  • Kun Li
    • 8
  • Ying-Hua Fu
    • 8
  • Quan-Fu Sun
    • 8
  • Suminori Akiba
    • 9
  1. 1.Department of Radiation Physics and ChemistryFukushima Medical UniversityFukushimaJapan
  2. 2.Institute of Radiation Emergency MedicineHirosaki UniversityHirosakiJapan
  3. 3.Research Center for Radiation ProtectionNational Institute of Radiological SciencesInage-kuJapan
  4. 4.Device Engineering and Applied Physics Research DivisionNational Institute for Fusion ScienceTokiJapan
  5. 5.Hirosaki University Graduate School of Health SciencesHirosakiJapan
  6. 6.Yangxi Center for Disease Prevention and ControlYangxi, YangjiangChina
  7. 7.Yangdong Center for Disease Prevention and ControlYangjiangChina
  8. 8.National Institute for Radiological ProtectionChinese Center for Disease Control and PreventionBeijingChina
  9. 9.Kagoshima University Graduate School of Medical and Dental SciencesKagoshimaJapan

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