Comparative dosimetry for radon and thoron in high background radiation areas in China

The present study focuses on internal exposure caused by the inhalation of radon and thoron progenies because the internal exposures have not yet been clarified. For their dose assessment, radon, thoron and thoron progeny concentrations were measured by passive monitors over a long period (for 6 mon...

Full description

Saved in:
Bibliographic Details
Published in:Radiation protection dosimetry 2015-11, Vol.167 (1-3), p.155-159
Main Authors: Kudo, H, Tokonami, S, Omori, Y, Ishikawa, T, Iwaoka, K, Sahoo, S K, Akata, N, Hosoda, M, Wanabongse, P, Pornnumpa, C, Sun, Q, Li, X, Akiba, S
Format: Article
Language:English
Subjects:
Air Pollutants, Radioactive - analysis
Air Pollution, Indoor
Background Radiation
China
Humans
Radiation Exposure - analysis
Radiation Monitoring - methods
Radon - analysis
Reproducibility of Results
Sensitivity and Specificity
Thoron
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The present study focuses on internal exposure caused by the inhalation of radon and thoron progenies because the internal exposures have not yet been clarified. For their dose assessment, radon, thoron and thoron progeny concentrations were measured by passive monitors over a long period (for 6 months). Consequently, radon, thoron and equilibrium equivalent thoron concentrations were given as 124 ± 78, 1247 ± 1189 and 7.8 ± 9.1 Bq m(-3), respectively. Annual effective doses are estimated to be 3.1 ± 2.0 mSv for radon and 2.2 ± 2.5 mSv for thoron. Total dose are estimated to be 5.3 ± 3.5 mSv a(-1). The present study has revealed that the radon dose was comparable with the thoron dose, and the total dose was ∼2 times higher than the worldwide average.
ISSN:0144-8420
1742-3406
DOI:10.1093/rpd/ncv235