Investigation of the surface soil and the environmental radioactivity in Huhhot city / 中华放射医学与防护杂志
Chinese Journal of Radiological Medicine and Protection
; (12): 461-465, 2017.
Article
en Zh
| WPRIM
| ID: wpr-620999
Biblioteca responsable:
WPRO
ABSTRACT
Objective To determine activity concentrations of natural and artificial radionuclides in the surface soils in Huhhot city,measure environmental radiation level,and evaluate risks to residents health.Methods Radionuclides in 48 surface soil samples were determined by means of the high purity germanium γ spectrometer;environmental radiation level was measured using an environment γ dose rate meter;comparison was made of average activity concentrations in soils between domestically and globally;and the radiation dose to the local residents was estimated by using the methods recommended by UNSCEAR and reported in the related literatures.Results The average values for specific activity of 238U,232Th,226 Ra,40K and137 Cs in the surface soil samples in Huhhot city were (29.29 ± 12.95),(39.33±4.34),(29.77 ±3.21),(650.49 ±62.21) and (1.62 ± 1.53) Bq/kg,respectively;the measured air absorbed dose rate was (86.32 ± 11.92) nGy/h;the annual effective dose to local residents from outdoor γ radiation was 79.27 μSv/year.Conclusions The specific activities of radionulcides in soils and the environmental radiation in surface soil in Huhhot city were at a normal background level,with low risks to health of the local residents.
Texto completo:
1
Base de datos:
WPRIM
Tipo de estudio:
Risk_factors_studies
Idioma:
Zh
Revista:
Chinese Journal of Radiological Medicine and Protection
Año:
2017
Tipo del documento:
Article