Natural radioactivity and radon exhalation rates in man-made tiles used as building materials in Japan.
Radiat Prot Dosimetry
; 167(1-3): 135-8, 2015 Nov.
Article
en En
| MEDLINE
| ID: mdl-25920783
ABSTRACT
Man-made tiles frequently used in Japan were collected, and activity concentrations and radon ((222)Rn) exhalation rates in these tiles were measured. Dose estimations for inhabitants living in houses built using these tiles were also carried out. The activity concentrations of (226)Ra, (228)Ra and (40)K in the man-made tiles were 31-170, 35-110 and 260-980 Bq kg(-1), respectively. The (222)Rn exhalation rates in the tiles were 8.8-21 µBq m(-2) s(-1). The ranges of experimental activity concentrations and (222)Rn exhalation rates were almost identical to those of natural rocks used as typical building materials in Japan. The maximum value of effective dose to inhabitants living in houses built with the man-made tiles was 0.14 mSv y(-1), which is lower than the reference level range (1-20 mSv y(-1)) for abnormally high levels of natural background radiation published in the ICRP Publication 103.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Radiación de Fondo
/
Radón
/
Contaminación del Aire Interior
/
Exposición a la Radiación
/
Materiales de Construcción
/
Contaminación Radiactiva del Aire
Límite:
Humans
País/Región como asunto:
Asia
Idioma:
En
Revista:
Radiat Prot Dosimetry
Año:
2015
Tipo del documento:
Article
País de afiliación:
Japón