广东中山地区土壤氡浓度填图研究

现代地质 ›› 2012, Vol. 26 ›› Issue (6): 1300-1305.

广东中山地区土壤氡浓度填图研究

肖磊^1,2 ，王南萍^1,2 ，周志广^1,2 ，储星铭^1,2 ，曾立晖^1,2

1 中国地质大学地球物理与信息技术学院，北京100083；
2 地下信息探测技术与仪器教育部重点实验室（中国地质大学，北京)，北京100083

收稿日期:2012-06-15 修回日期:2012-08-31 出版日期:2012-10-24 发布日期:2012-10-31
通讯作者: 王南萍，女，教授，博士生导师，1957年出生，地球物理学专业，主要从事核辐射与环境等相关领域的研究。
作者简介:肖磊，讲师，女，1977年出生，地球探测与信息技术专业，主要从事核辐射与环境等相关领域的研究。Email: chugz@cugb.edu.cn。
基金资助:
国家自然科学基金项目（40174096,40274043)。

Mapping of Soil Radon Concentration in Zhongshan, Guangdong Province

XIAO Lei ^-1,2，WANG Nan ping ^-1,2，ZHOU Zhi guang ^-1,2，CHU Xing ming ^-1,2，ZENG Li hui^-1,2

1 School of Geophysics and Information Technology, China University of Geosciences，Beijing100083, China；
2 Key Laboratory of Geodetection （China University of Geosciences, Beijing), Ministry of Education, Beijing100083, China

Received:2012-06-15 Revised:2012-08-31 Online:2012-10-24 Published:2012-10-31

摘要/Abstract

摘要：

为了研究区域土壤氡填图的方法，利用RAD7电子测氡仪和RADONJOK土壤气体渗透率仪在广东省中山市进行了面积为1 800 km2的测量工作，有效测点数为67个。中山市的平均土壤氡浓度为（10041±15464) kBq/m3；最大值和最小值分别为074 kBq/m3和1 19924 kBq/m3。土壤气体渗透率测量结果表明，在风化花岗岩地区，高渗透率和中渗透率占优势；而第四纪沉积物地区大部分土壤气体渗透率较低。基于此，结合研究区土壤氡浓度和土壤气体渗透率，对研究区土壤氡风险进行了分级评价。为土壤氡风险分级的方法研究提供了有参考价值的研究实例。

关键词: 土壤氡, 土壤气体渗透率, 氡填图, RAD7, RADON JOK

Abstract:

In order to study the regional mapping method of radon concentration in soils, the survey work was performed in a total survey area of 1,800 km2 in Zhongshan, Guangdong Province. The electronic radon monitor RAD7 and the permeameter RADON JOK were used to measure radon222 concentration and gas permeability of soils, acquiring 67 valid data. The radon 222 concentrations of soils in Zhongshan vary between 0.74 kBq/m3 and 1,199.24 kBq/m3, and the average concentration is (100.41±154.64) kBq/m3. The gas permeability of the weathered granite soil is dominantly high and medium, and that of most Quaternary sediments is low. Based on these data, the radon risk of soils in the study area is accurately classified, and the result shows that the classification method of radon risk of soil based on the radon concentration and gas permeability is proved to be feasible.

Key words: soil radon, gas permeability of soil, radon mapping, RAD7, RADON JOK

肖磊, 王南萍, 周志广, 储星铭, 曾立晖. 广东中山地区土壤氡浓度填图研究[J]. 现代地质, 2012, 26(6): 1300-1305.

XIAO Lei, WANG Na-Ping, ZHOU Zhi-An, CHU Xing-Ming, CENG Li-Hui. Mapping of Soil Radon Concentration in Zhongshan, Guangdong Province[J]. Geoscience, 2012, 26(6): 1300-1305.

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