Investigation and Study on Environmental Radioactive Background in Xinchang and Jijicao Rock of Beishan Preselected Region for HLW Disposal Repository in China

2013 ◽  
Vol 726-731 ◽  
pp. 869-876
Author(s):  
Guo Hua Qiu
Keyword(s):  
Background Radiation ◽  
Environmental Radioactivity ◽  
Radioactive Waste Disposal ◽  
Natural Background ◽  
Local Resident ◽  
Natural Background Radiation ◽  
The Public ◽  
Environmental Investigation ◽  
High Level ◽  
Investigation And Study

On the basis of field environmental investigation and monitoring, the environmental radioactivity background of Xinchang and Jijicao rock in Beishan preselected region has been preliminary investigated and studied, and the public dose from local natural background radiation is estimated which can provide basic data and information for environmental impact assessment and safety assessment of HLW(the high level radioactive waste) disposal repository in the future. From the result of investigation and study, the environmental radioactivity of Xinchang and Jijicao rock is generally within normal natural background. The effective dose to local resident from natural background radiation is 2.110 mSv/a by internal and external exposure.

scholarly journals Telomere Length in Human Adults and High Level Natural Background Radiation

PLoS ONE ◽  
2009 ◽  
Vol 4 (12) ◽  
pp. e8440 ◽  
Author(s):  
Birajalaxmi Das ◽  
Divyalakshmi Saini ◽  
M. Seshadri
Keyword(s):  
Telomere Length ◽  
Background Radiation ◽  
Natural Background ◽  
Natural Background Radiation ◽  
Human Adults ◽  
High Level

Radioactivity of building materials in Mahallat, Iran – an area exposed to a high level of natural background radiation – attenuation of external radiation doses

2020 ◽  
Vol 70 (340) ◽  
pp. 233 ◽  
Author(s):  
A. Shahrokhi ◽  
M. Adelikhah ◽  
S. Chalupnik ◽  
E. Kocsis ◽  
E. Toth-Bodrogi ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Building Materials ◽  
Background Radiation ◽  
Radiation Doses ◽  
Natural Background ◽  
Natural Background Radiation ◽  
Dose Rates ◽  
Mass Activity ◽  
High Level ◽  
The Town

In this study, mass activity of naturally occurring radioactive materials were measured in twenty-three building material samples, use extensively in the area exposed to a high level of natural background radiation (Mahallat, Iran), to determine the radioactivity index and changes to the level of indoor gamma radiation. The mass activity of 232Th, 226Ra and 40K were within the ranges from 18 ± 3 to 44 ± 10 Bq/kg (average of 27 ± 6 Bq/kg), 22 ± 5 to 53 ± 14 Bq/kg (average of 34 ± 6 Bq/kg) and 82 ± 18 to 428 ± 79 Bq/kg (average of 276 ± 58 Bq/kg), respectively. The gamma dose rates for population were estimated between 48 ± 9 and 111 ± 26 nGy/h with exception of radon exhalation from building materials. Since the air kerma rate in the town varies from 0.8 to 4 μGy/h, the attenuation coefficient was calculated for buildings made of the aforementioned materials. Additionally, the annual gamma radiation doses for inhabitants were calculated based on time spent outdoors and indoors.

Observation of natural background radiation during the Great American Eclipse

2018 ◽  
Vol 142 ◽  
pp. 151-159
Author(s):  
David L. Chichester ◽  
James T. Johnson ◽  
Scott M. Watson ◽  
Jay D. Hix ◽  
Scott J. Thompson
Keyword(s):  
Background Radiation ◽  
Natural Background ◽  
Natural Background Radiation
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