Continuous measurement of radon exhalation rate of soil in Beijing

被引：12
|
作者：
Zhang, Lei [1 ,2 ]
Guo, Qiuju [1 ]
Sun, Ke [1 ]
机构：
[1] Peking Univ, State Key Lab Nucl Phys & Technol, Sch Phys, Beijing 102205, Peoples R China
[2] Solid Dosimetr Detector & Method Lab, Beijing 102205, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2015年 / 303卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Radon exhalation rate; Continuous measurement; Soil; Precipitation;
D O I：
10.1007/s10967-014-3783-9
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
To understand the level of radon exhalation rate from soil surface and its variation, a continuous measurement system was developed and applied for a field measurement in Beijing from April 2012 to February 2013. For seasonal variation, It was indicated by measurement results that radon exhalation rate was higher in spring (52.9 mBq m(-2) s(-1) in average) and lower in winter (17.0 mBq m(-2) s(-1) in average). The precipitation had a strong influence on the radon exhalation rate, usually radon exhalation rate increased quickly after rain. Daily variation of radon exhalation rate was also observed in spring, usually higher at noon and lower at midnight.
引用
收藏
页码：1623 / 1627
页数：5
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