Journal of Radioanalytical and Nuclear Chemistry

, Volume 303, Issue 2, pp 1623–1627 | Cite as

Continuous measurement of radon exhalation rate of soil in Beijing



To understand the level of radon exhalation rate from soil surface and its variation, a continuous measurement system was developed and applied for a field measurement in Beijing from April 2012 to February 2013. For seasonal variation, It was indicated by measurement results that radon exhalation rate was higher in spring (52.9 mBq m−2 s−1 in average) and lower in winter (17.0 mBq m−2 s−1 in average). The precipitation had a strong influence on the radon exhalation rate, usually radon exhalation rate increased quickly after rain. Daily variation of radon exhalation rate was also observed in spring, usually higher at noon and lower at midnight.


Radon exhalation rate Continuous measurement Soil Precipitation 



This work was supported by the National Natural Science Foundation of China (Grant No. 11205241).


  1. 1.
    UNSCEAR (2000) Sources and effects of ionizing radiation. UNSCEAR, Sweden, pp 1–8Google Scholar
  2. 2.
    Oberstedt S, Vanmarcke H (1996) A radon exhalation monitor. Radiat Prot Dosimetry 63:69–72CrossRefGoogle Scholar
  3. 3.
    Keller G, Folker KH, Muth H (1992) Method for the determination of 222Rn and 220Rn exhalation rate using alpha-spectroscopy. Radiat Prot Dosimetry 3:83–89Google Scholar
  4. 4.
    Fazal-Ur-Rehman, Al-Jarallah MI, Musazay MS et al (2003) Application of the can technique and radon gas analyzer for radon exhalation measurements. Appl Radiat Isot 59:353–358CrossRefGoogle Scholar
  5. 5.
    Keller G, Schutz M (1988) Radon exhalation from the soil. Radiat Prot Dosimetry 24:43–46Google Scholar
  6. 6.
    Hosoda M, Shimo M, Sugino M et al (2004) In situ measurement of radon and thoron exhalation rate and their geological interpretation. Jpn J Health Phys 39:206–214CrossRefGoogle Scholar
  7. 7.
    Nanping W, Lei X (2009) Level of radon exhalation rate from soil in some sedimentary and granite areas in China. J Nucl Sci Technol 46:305–309Google Scholar
  8. 8.
    Hassan NM, Hosoda M, Ishikawa T et al (2009) Radon migration process and its influence factors: review. Jpn J Health Phys 44:218–231CrossRefGoogle Scholar
  9. 9.
    Hosoda M, Ishikawa T, Sorimachi A (2011) Development and application of a continuous measurement system for radon exhalation rate. Rev Sci Instrum 82:101–105Google Scholar
  10. 10.
    UNSCEAR (1993) Sources and effects of ionizing radiation. UNSCEAR, Sweden, pp 45–54Google Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  1. 1.State Key Laboratory of Nuclear Physics and Technology, School of PhysicsPeking UniversityBeijingChina
  2. 2.Solid Dosimetric Detector and Method LaboratoryBeijingChina

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