Results 21 to 30 of about 3,723 (222)
RADON EXHALATION FROM GRANITIC ROCKS
Brazilian Journal of Radiation Sciences, 2019 Naturally occurring radionuclides such as radon (222Rn), its decay products and other elements from the radioactive series of uranium (238U and 235U) and thorium (232Th) are an important source of human exposure to natural radioactivity. The worldwide evaluation of health radiobiological effects and risks from population exposure to natural ...
Flávia Del Claro +6 more
openaire +3 more sources
Radon Exhalation Patterns in A Dead-end Tunnel
MATEC Web of Conferences, 2016 The regularity of radon exhalation rate in the over-broken granite tunnel is susceptible to weather conditions and ventilation styles. Based on the calculation model of radon exhalation in tunnel, some experiments have been carried out to analyze the ...
Wang Shu Guang +3 more
doaj +1 more source
Radon exhalation rate and radon activity in soils of riverine environs of South Karnataka
Radiation Protection and Environment, 2018 In the present study, sealed “can technique” using solid-state nuclear track detector (LR-115) films was employed to measure the radon exhalation rate and radium concentration in soil samples of Cauvery river environment.
C S Kaliprasad, Y Narayana
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Indoor radon: an overview on a perennial problem [PDF]
, 2012 According to the World Health Organization (WHO) radon constitutes the second cause of lung cancer in the general population, the first being smoking. In addition health investigations also show that children are more susceptible than adults to ionizing
Pacheco-Torgal, F.
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Lung function decline in 4-monthly repeated spirometric measurements: Due to silt aerosol exposure or decreasing effort? [PDF]
, 2000 Background: Workers on dredgers and lighters on rivers are exposed to the inhalation of aerosols and dusts. Objective: The aim of this study was to investigate effects of river silt aerosol and dust exposure on the respiratory health of dredging ...
Radon, Katja, Szadkowski, D., Wegner, R.
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Effect on Radon Exhalation Rate Due to Cracks in Concrete
Nordic Concrete Research, 2019 The second largest cause of lung cancer in the World is related to radon (222Rn) and its progenies in our environment. Building materials, such as concrete, contribute to the production of radon gas through the natural decay of 238U from its constituents.
Döse Magnus, Silfwerbrand Johan
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Investigation of the influence of chamber construction parameters on radon exhalation rate
Nukleonika, 2016 Radon exhalation from ground is a process dependent on the emanation and migration of radon through ambient air. Most studies on radon exhalation from soil were performed regarding the influence of meteorological and soil parameters.
Kozłowska Beata +4 more
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Nuclear Engineering and Technology, 2020 The estimation of radioactivity level is vital for population health risk assessment and geological point of view and can be evaluated as rate of exhalation and source concentration (226Ra, 232Th and 40K).
Vandana Devi, Rishi Pal Chauhan
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Radiation Protection and Environment, 2020 Radon concentration in a room can be predicted from accurate knowledge of exhalation rates from six surfaces of the room. Walls of a room occupy the maximum surface area of the room.
Manish Kumar +3 more
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Radon and thoron exhalation rate, emanation factor and radioactivity risks of building materials of the Iberian Peninsula [PDF]
PeerJ, 2020 Radon (222Rn) and thoron (220Rn) are radioactive gases emanating from geological materials. Inhalation of these gases is closely related to an increase in the probability of lung cancer if the levels are high.
Samuel Frutos-Puerto +5 more
doaj +2 more sources