A model comparison of diffusion-controlled radon exhalation from solid and cavity walls with application to high background radiation areas
A model comparison of diffusion-controlled radon exhalation from solid and cavity walls with application to high background radiation areas
复制标题
固体壁和空腔壁的扩散控制氡析出模型比较及其在高背景辐射区域的应用
DOI：
10.1007/s11356-020-10890-1
复制
发表时间：
2020-09
影响因子：
5.8
通讯作者：
Kimberlee Kearfott
中科院分区：
文献类型：
--
作者：
Yanliang Tan;Hongzhi Yuan;Kimberlee Kearfott
建筑材料表面呼出的氡是室内氡的重要来源。阳江位于大陆中国的南部，是著名的高本底辐射区。相反，在土坯房和砖房中观察到了高水平的氡和钍浓度。在中国和世界高本底辐射地区，降低室内氡浓度仍然是一个重要问题。一般来说，中国民居的墙壁是坚固的。本文提出了一种简单的一维模型来预测腔壁中的氡扩散，并给出了描述腔壁表面析氡率的解析式。分析了结构缝渗漏和建筑材料裂缝对氡析出率的影响。模拟结果表明，腔壁表面的析氡率远低于实壁的析氡率。因此，空腔墙本身的结构对于减少世界各地高背景辐射地区的室内氡是有用的。
Radon exhaled from building material surfaces is an important source of indoor radon. Yangjiang, located in the southern part of mainland China, is well-known as a high background radiation area (HBRA). Rather, high levels of radon and thoron concentration have been observed in adobe and brick houses. Reducing the indoor radon concentration remains an important issue in the high background radiation areas of China and the world. Generally, the walls of Chinese dwellings are solid. In this paper, a simple one-dimensional model for predicting the radon diffusion in a cavity wall is proposed, and an analysis formula describing the radon exhalation rate from cavity wall surfaces is presented. The influence on the radon exhalation rate due to leakage through structural joints and building material cracks is analyzed. The simulation results indicate that the radon exhalation rate from a cavity wall surface is far lower than that from a solid wall. The structure of cavity walls themselves is therefore useful as a mechanism for reducing the indoor radon in high background radiation areas across the world.
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DOI：
10.1016/j.ics.2004.10.005
发表时间：
2005-02
期刊：
--
影响因子：
--
作者：
Guo Qiuju;Chen Bo;Sun Quanfu
通讯作者：
Guo Qiuju;Chen Bo;Sun Quanfu
影响因子：
2
作者：
M. Sohrabi
通讯作者：
M. Sohrabi
影响因子：
5.8
作者：
K. Ivanova;Z. Stojanovska;B. Kunovska;N. Chobanova;V. Badulin;A. Benderev
通讯作者：
K. Ivanova;Z. Stojanovska;B. Kunovska;N. Chobanova;V. Badulin;A. Benderev
影响因子：
5.8
作者：
Park, Tae Hyun;Kang, Dae Ryong;Lee, Cheol Min
通讯作者：
Lee, Cheol Min
影响因子：
4.2
作者：
M. Yuness;A. Mohamed;Hyam Nazmy;M. Moustafa;M. El-Hady
通讯作者：
M. Yuness;A. Mohamed;Hyam Nazmy;M. Moustafa;M. El-Hady