Effect of Temperature and Relative Humidity on Radon Exhalation Rate of Glazed Tile in Hermetic Environment
- VernacularTitle:密闭环境中温度和相对湿度对墙砖氡析出率的影响
- Author:
Wanwei LI
;
Xiaohong LI
;
Xingrong LIU
- Publication Type:Journal Article
- Keywords:
Air pollution,indoor;
Radon;
Hermetic environment;
Temperature;
Relative humidity;
Exhalation rate
- From:
Journal of Environment and Health
2007;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the effects of temperature and relative humidity on radon exhalation rate of glazed tile in the hermetic environment. Methods Ordinary glazed tile was used as experimental object to detect radon concentration with Model 1027 continuous radon monitor in a 0.25 m3 simulation chamber at different temperature and humidity,and then calculated the radon exhalation rate. Results In reasonable range,a cubic correlation between radon exhalation rate(ER) and relative humidity(RH) expressed as ER=0.000 2RH3-0.040 2RH2+2.623 9RH-32.303(R2=0.986 6)was found; a cubic function relationship between radon exhalation rate(ER) and temperature(t) expressed as ER=-0.022 5t3+2.016 5t2-58.748t+565.05(R2=0.969 8)was also observed. Conclusion Environmental temperature and relative humidity have great effects on radon exhalation rate of glazed tile.
