Journal ArticleDOI
A study of radon emitted from building materials using plastic alpha-track detectors.
TLDR
In this article, films made from cellulose nitrate LR-115 (Pathe Kodak) and CR-39 have been used for long-term measurements of the radon-222 emanation from building materials and the resultant activity inside houses.Abstract:
Films made from cellulose nitrate LR-115 (Pathe Kodak) and CR-39 have been used for long-term measurements of the radon-222 emanation from building materials and the resultant activity inside houses. The emanation from crushed granite bricks is found to be produced from within the brick while in the clay bricks it originates in the surface layers only. The airborne radon activity inside houses constructed from clay brick is found on average to be 22 mBq 1-1 (0.57 pCi 1-1) while inside a closed vessel sealed to the brick the average equilibrium activity is 40 mBq 1-1 pCi 1-1).read more
Citations
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Journal ArticleDOI
Measurement of radon exhalation rate from some building materials
TL;DR: In this article, passive integrating CR-39 plastic track detectors were used to measure the radon exhalation rate from building materials used in the region of the United Kingdom, and it was found that radon rate varies from 12.6 to 169 mBq m-2 h-1 in 10 different building materials.
Journal ArticleDOI
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 nuclear track detectors for radon related measurements
TL;DR: In this article, personal experience in the application of nuclear track detectors for radon related measurements are discussed and the effect of subfloor radon emanation on radon concentration in houses is depend on wether there is sub-floor ventilation or not.
Journal ArticleDOI
Natural radioactivity in common building construction and radiation shielding materials
TL;DR: In this article, the activity concentration of the natural radionuclides, namely 238 U, 232 Th and 40 K, besides the radon exhalation rates have been analyzed for various building construction materials.
Journal ArticleDOI
Measurement of exhalation and diffusion parameters of radon in solids by plastic track detectors
TL;DR: In this article, the authors have developed and used track methods to measure mass and areal exhalation rates of radon from different fly ashes and sand, and also developed methods were also developed to determine the diffusion length of Radon and the porosity of materials.
References
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Journal ArticleDOI
Mapping of integrated radon emanation for detection of long-distance migration of gases within the Earth: Techniques and principles
TL;DR: In this article, the authors present a description of the different components of radon signals that may be present and describe methods for separating them, and quantitatively what signals the different radon-integrating devices are sensitive to, how readings in a given geometry can be related to actual concentrations in the soil gas under conditions of diffusional equilibrium, and some of the effects of water in soil are.
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Assessment of airborne radon daughter concentrations in dwellings in Great Britain
TL;DR: Calculations of the activity concentration of RaA (218Po) in the air within living rooms and in the outside air were made at 87 dwellings in England and Scotland and the population exposure rate for the population of Great Britain to the short-lived daughters of 222Rn is estimated to be 0.15 Working Level Months per year.