Results 181 to 190 of about 1,468 (205)
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Radon in soil gas — Exhalation tests and in situ measurements
Science of The Total Environment, 1985Radon in soil can move into buildings resulting in high radon daughter concentrations. The foundation of a dwelling should be adapted to the radon "risk" which is determined by the radon concentration and the air permeability of the soil. Different measuring procedures are discussed in this paper, both in situ measurements of radon content and ...
A, Lindmark, B, Rosen
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Radioactivity and radon exhalation rates of building materials in The Netherlands
Science of The Total Environment, 1985About 140 samples of building materials have been analysed by gamma spectrometry for their Ra-226, Th-232 and K-40 concentrations. The radon exhalation rate was measured from concrete slabs of different composition including fly-ash components. The activity concentrations of materials containing soil products, like clay bricks and concrete, proved to ...
J G, Ackers +3 more
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Radon exhalation and ultrafine fraction of radon progeny in closed room air
Atmospheric Environment, 1999The influence of 222Rn exhalation from walls and air exchange (low ventilation rates ...
A. El-Hussein, A. Mohammed, A.A. Ahmed
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Radon exhalation from granite countertops and expected indoor radon levels
Journal of Radioanalytical and Nuclear Chemistry, 2016Radon (222Rn) exhalation rates from granite countertops were measured using a continuous radon monitor. The countertops could be separated in three groups according to radon their exhalation rates. However, even for a worst-case scenario (e.g. E ~ 1.10 Bq m−2 h−1, no air circulation and full tile home) the contribution to indoor radon concentration is ...
Sarrou, I. +3 more
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ASSESSMENT OF RADIOACTIVITY AND RADON EXHALATION RATE IN EGYPTIAN CEMENT
Health Physics, 2004The cement industry is considered as one of the basic industries that plays an important role in the national economy of developing countries. Activity concentration of 238U, 232Th, and 40K in local cement types from different Egyptian factories has been measured using a shielded HPGe detector.
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Radon and Thoron exhalation rate map in Japan
AIP Conference Proceedings, 2008Measurements of radon and thoron exhalation rates have been done using the radon and thoron exhalation rate measuring instrument adopting the accumulation method. We obtained the 111 data in the 40 sites of the 14 prefectures in Japan. The arithmetic average value of the radon and thoron exhalation rates by all 111 data were obtained to be 8.6 mBq⋅m−2 ...
Hosoda Masahiro +8 more
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Experimental study on the mechanism of radon exhalation during coal spontaneous combustion in goaf
Tunnelling and Underground Space Technology, 2021Cunbao Deng
exaly
The Influence of Moisture and Temperature on Radon Exhalation
Radiation Protection Dosimetry, 1984E. Stranden, A.K. Kolstad, B. Lind
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