Results 151 to 160 of about 943 (203)

Practical cut-off value for radon concentration in indoor air using an activated-charcoal radon collector. [PDF]

Radiat Prot Dosimetry
Yasuoka Y, Takemoto J, Omori Y, Kawamoto N, Goda N, Nagahama H, Muto J, Tokonami S, Hosoda M, Iimoto T, Mukai T.   +10 more
europepmc   +1 more source

Analysis of indoor radon concentration levels and trends in China. [PDF]

Front Public Health
Ding B, Wu Y, Song Y, Hou C, Shang B.
europepmc   +1 more source

Radon and thoron exhalation rate map in Japan

Radon and thoron exhalation rate map in Japan
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Measurement of Radon Exhalation Rate from Walls

Measurement of Radon Exhalation Rate from Walls
openaire  

Effect of Humidity on Radon Exhalation Rate from Concrete

Effect of Humidity on Radon Exhalation Rate from Concrete
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Radon and thoron exhalation rates and their some correlating factors

Radon and thoron exhalation rates and their some correlating factors
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Estimation of global radon exhalation rate distribution [PDF]

AIP Conference Proceedings, 2008
A radon exhalation rate distribution model was developed, which considers dependency on soil water saturation, soil temperature and soil texture. The global averages of the radon exhalation rates were calculated to be 17.5 and 18.0 mBq⋅m−2⋅s−1 by the model with different input soil moisture data.
Masayoshi Goto, Jun Moriizumi, Hiromi Yamazawa, Takao Iida, Weihai Zhuo, Anselmo Salles Paschoa, Friedrich Steinhäusler   +6 more
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Factors controlling measurements of radon mass exhalation rate

Journal of Environmental Radioactivity, 2005
Radon mass exhalation rate of soil samples was measured using an exhalation chamber of 10 dm(3) volume and a Lucas cell. The results show that mass of sample, grain size and water content influence the radon mass exhalation rate. For soil of (226)Ra activity concentration about 2500 Bq kg(-1) and samples within the range from 0.20 kg to 0.50 kg, the ...
Chau Nguyen Dinh
exaly   +3 more sources

Continuous measurement of radon exhalation rate of soil in Beijing [PDF]

Journal of Radioanalytical and Nuclear Chemistry, 2014
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)
Lei Zhang, Qiuju Guo, Ke Sun
openaire   +2 more sources

Study on the influence of water saturation on radon exhalation rates of rocks

Science of the Total Environment
The radon exhalation characteristics of rocks will change significantly during water saturation treatment, and radon, as an important tracer, is of great significance in predicting rock activities. In this paper, the radon exhalation characteristics of rocks after saturated with different water contents were studied by centrifugal test, radon ...
Pengfei, Li, Qiang, Sun, Lin, Cong
exaly   +3 more sources