Estimation of indoor 220Rn progeny concentrations with 220Rn measurements

被引:4
作者
Zhuo, W. [1 ]
Chen, B. [1 ]
Wei, M. [2 ]
机构
[1] Fudan Univ, Inst Radiat Med, Shanghai 20032, Peoples R China
[2] Fujian Ctr Prevent & Control Occupat Dis & Chem P, Fuzhou 350001, Peoples R China
关键词
THORON; RADON;
D O I
10.1093/rpd/ncq256
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
For estimating indoor thoron (Rn-220) progeny concentrations with Rn-220 measurements, both theoretical studies and field measurements were carried out in this work. Based on the theoretical study, it was found that the exhalation rate of Rn-220 (E-Tn) could be optimally assessed with the Rn-220 concentration measured at a point of 50 cm far from the source wall, and the equilibrium equivalent thoron concentration (EETC) could be further estimated with the E-Tn and the area of wall surface as well as the room volume. Field measurements testified that the estimated EETCs were in general agreement with the directly measured results with an average ratio of 0.87 +/- 0.12. The new method developed in this study is thought to be preferable for long-term and large-scale surveys of indoor EETC.
引用
收藏
页码:408 / 411
页数:4
相关论文
共 14 条
  • [1] [Anonymous], 2000, REPORT UN SCI COMMIT
  • [2] [Anonymous], 2006, United Nations Scientific Committee on the Effects of Atomic Radiation
  • [3] DOI M, 1994, HEALTH PHYS, V66, P274, DOI 10.1097/00004032-199403000-00007
  • [4] State-of-the-art instruments for measuring radon thoron and their progeny in dwellings - A review
    George, AC
    [J]. HEALTH PHYSICS, 1996, 70 (04): : 451 - 463
  • [5] MEASUREMENTS OF THORON CONCENTRATION BY PASSIVE CUP METHOD AND ITS APPLICATION TO DOSE ASSESSMENT
    GUO, QJ
    IIDA, T
    OKAMOTO, K
    YAMASAKI, T
    [J]. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 1995, 32 (08) : 794 - 803
  • [6] INDOOR CONCENTRATIONS OF RN-220 AND ITS DECAY PRODUCTS
    KATASE, A
    MATSUMOTO, Y
    SAKAE, T
    ISHIBASHI, K
    [J]. HEALTH PHYSICS, 1988, 54 (03): : 283 - 286
  • [7] The thoron issue: Monitoring activities, measuring techniques and dose conversion factors
    Nuccetelli, C
    Bochicchio, F
    [J]. RADIATION PROTECTION DOSIMETRY, 1998, 78 (01) : 59 - 64
  • [8] PROPERTIES AND BEHAVIOR OF RADON AND THORON AND THEIR DECAY PRODUCTS IN THE AIR
    PORSTENDORFER, J
    [J]. JOURNAL OF AEROSOL SCIENCE, 1994, 25 (02) : 219 - 263
  • [9] Radon and thoron exposures for cave residents in Shanxi and Shaanxi Provinces
    Tokonami, S
    Sun, QF
    Akiba, S
    Zhuo, WH
    Furukawa, M
    Ishikawa, T
    Hou, CS
    Zhang, SZ
    Narazaki, Y
    Ohji, B
    Yonehara, H
    Yamada, Y
    [J]. RADIATION RESEARCH, 2004, 162 (04) : 390 - 396
  • [10] Tokonami S., 2002, JPN J HLTH PHYS, V37, P59, DOI DOI 10.5453/JHPS.37.59