Journal ArticleDOI
Correlation between radon exhalation and radium content in granite samples used as construction material in Saudi Arabia
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TLDR
In this article, the radon exhalation rates per unit area from these granite samples varied from below the minimum detection limit up to 13.1 Bq m - 2 h - 1 with an average of 1.5 ± 1.9 (1 σ ) Bqm - 2h - 1.About:
This article is published in Radiation Measurements.The article was published on 2005-11-01. It has received 50 citations till now. The article focuses on the topics: Radon & Radium.read more
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Radon exhalation and its dependence on moisture content from samples of soil and building materials
Munazza Faheem,Matiullah +1 more
TL;DR: In this paper, the authors studied the dependence of radon exhalation rate and its dependence on moisture content on samples of soil and some common types of building materials (sand, cement, bricks and marble) from Gujranwala, Gujrat, Hafizabad, Sialkot, Mandibahauddin and Narowal districts of the Punjab province (Pakistan).
Journal ArticleDOI
The effect of water content on the radon emanation coefficient for some building materials used in Japan
Nabil M. Hassan,Nabil M. Hassan,Tetsuo Ishikawa,Masahiro Hosoda,Kazuki Iwaoka,Atsuyuki Sorimachi,Sarata Kumar Sahoo,Miroslaw Janik,Chutima Kranrod,Hidenori Yonehara,Masahiro Fukushi,Shinji Tokonami +11 more
TL;DR: In this article, the effect of water content on the radon emanation coefficient was investigated under three different conditions (dry, normal, and wet) and the emanation coefficients were then used to calculate the alpha equivalent dose (dose from indoor radon generated from building materials), assuming a simple room model.
Journal ArticleDOI
Radon exhalation rate and natural radionuclide content in building materials of high background areas of Ramsar, Iran
Elham Bavarnegin,Nasrin Fathabadi,M. Vahabi Moghaddam,M. Vasheghani Farahani,Mona Moradi,A. Babakhni +5 more
TL;DR: The result of this survey shows that radon exhalation rate and radium content in some local stones used as basements are extremely high and these samples are main sources of indoor radon emanation as well as external gamma radiation from uranium series.
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Assessment of natural radioactivity in fertilizers and phosphate ores in Egypt
TL;DR: In this article, a high-purity germanium detector was used to detect radionuclide concentrations of uranium (238U), thorium (232Th) and potassium (40K) maintained in 10 phosphate ore and 5 fertilizer samples.
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Radon exhalation rate from the soil, sand and brick samples collected from NWFP and FATA, Pakistan.
TL;DR: Exhalation rate form soil, sand and brick samples was found to vary from 114 +/- 11 to 416 +/- 9 mBq m(-2) h(-1), which is very important to characterise the building materials as an indoor radon source.
References
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Journal ArticleDOI
Lung Cancer Risk From Residential Radon: Meta-analysis of Eight Epidemiologic Studies
Jay H. Lubin,John D. Boice +1 more
TL;DR: The results of this meta-analysis suggest that the risk from indoor radon is not likely to be markedly greater than that predicted from miners and indicate that the negative exposure response reported in some ecologic studies is likely due to model misspecification or uncontrolled confounding and can be rejected.
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Natural radioactivity in and radon exhalation from Finnish building materials.
TL;DR: A total of 369 samples of Finnish building materials were tested for their 226Ra, 232Th and 40K concentrations and the rate of radon exhalation was measured from 19 samples of material and 34 dwellings were tests for their room air ventilation rate and radon concentration.
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Radon exhalation from granites used in Saudi Arabia.
TL;DR: Granite can be a source of indoor radon as well as external gamma-radiation from the uranium decay series through its application in construction materials used in Saudi Arabia.
Journal ArticleDOI
Application of the can technique and radon gas analyzer for radon exhalation measurements.
TL;DR: The can technique showed sensitivity to low radon exhalation rates from ceramic, marble and some granite over a period of 2 months, which were not detectable by the active radon gas analyzer system, and the reproducibility of data was found to be within a 7% deviation.
Journal Article
Radon update: Facts concerning environmental radon: Levels, mitigation strategies, dosimetry, effects and guidelines
A. B. Brill,D.V. Becker,K. Donahoe,Stanley J. Goldsmith,Bennett S. Greenspan,Kenneth R. Kase,H Royal,E B Silberstein,E W Webster +8 more
TL;DR: Evidence for a health effect from radon exposure is based on data from animal studies and epidemiologic studies of mines, and no compelling evidence for increased cancer risks has yet been demonstrated from "acceptable" levels (< 4-8 pCi/liter).