Natural and artificial radionuclide measurements and radioactivity assessment of soil samples in eastern Sichuan province (China)

被引：17

作者：

Wang, Zhonghai ^{[1
]}

He, Jun ^{[1
]}

Du, Yu ^{[1
]}

He, Yang ^{[1
]}

Li, Zhiqian ^{[1
]}

Chen, Zhihua ^{[1
]}

Yang, Chaowen ^{[1
]}

机构：

[1] Sichuan Univ, Coll Phys Sci & Technol, Key Lab Radiat Phys & Technol, Minist Educ, Chengdu 610064, Peoples R China

来源：

RADIATION PROTECTION DOSIMETRY | 2012年 / 150卷 / 03期

关键词：

NAMIBIA; REGION; RADON;

D O I：

10.1093/rpd/ncr413

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The activity concentrations of natural and artificial radionuclides were measured in the eastern region of Sichuan province (China). One hundred and ninety-three soil samples from this region were collected and analysed by high-purity germanium gamma spectrometry. The measured results show that the average radioactivity concentrations of Ra-226, Th-232, K-40 and Cs-137 in the soil samples are 26, 49, 440 and 6 Bq kg(1), respectively. The calculated average radium equivalent activity is 130 Bq kg(1), which is less than the recommended limit of 370 Bq kg(1). The absorbed dose rate and annual effective dose are 60 nGy h(1) and 74 Sv, respectively. This is the first time the absorbed dose rate in the east region of Sichuan has been mapped. Overall, the environmental radiation background is greater in the southern part of the area studied than in the northern.

引用

页码：391 / 397

页数：7

共 22 条

[1] NATURAL RADIOACTIVITY OF AUSTRALIAN BUILDING-MATERIALS, INDUSTRIAL-WASTES AND BY-PRODUCTS [J].