Analysis of influence of standby sampling points on observation of radon in water at Hanzhong seismic station
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摘要: 本文以汉中地震台两个水氡采样点为实验对象，通过对比观测，得出主用备用采样点同日氡值及水温，分析差异原因，表明备用采样点观测结果会对本台水氡观测产生直接影响，增加了数据分析不确定性，影响观测结果连续性。Abstract: In this paper, two water radon sampling points at Hanzhong seismic station are taken as experimental objects. Through comparative observation, the radon value and water temperature on the same day at the main and standby sampling points are obtained, and the reasons for the difference are analyzed. It is shown that the observation results at the standby sampling points will have a direct impact on the water radon observation at this station, increasing the uncertainty of data analysis and affecting the continuity of observation results.
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表 1 实验主要数据成果表
Table 1. Main data and results of the experiment
实验时间 5#井主样（Bq/L） 5#井副样
（Bq/L）5#井水温
（℃）2#井主样
（Bq/L）2#井副样
（Bq/L）2#井水温
（℃）20210102 23.7 23.4 18.3 18.3 18.7 18.7 20210103 23.1 23.5 18.3 17.6 17.5 18.7 20210104 22.8 23.0 18.3 18.6 18.4 18.7 20210224 23.5 23.8 18.3 19.0 17.9 18.6 20210225 23.7 24.1 18.3 18.1 18.2 18.7 20210226 23.6 23.9 18.3 18.4 18.1 18.7 20210304 23.0 23.8 18.3 17.9 17.7 18.7 20210305 22.8 24.0 18.4 18.8 18.1 18.7 20210306 23.1 23.5 18.4 17.6 18.4 18.7 20210307 23.5 23.9 18.4 18.9 18.0 18.7 20210420 23.6 22.8 18.4 18.3 18.9 18.7 20210421 24.1 23.8 18.4 18.8 18.7 18.7 20210422 24.1 23.9 18.5 18.5 18.6 18.7 20210531 23.9 24.1 18.5 18.0 18.9 18.8 20210604 24.0 24.1 18.5 18.6 18.2 18.8 20210605 24.6 23.9 18.5 18.1 18.6 18.9 20210607 24.0 24.5 18.5 17.6 18.8 18.9 20210622 24.3 24.3 18.5 18.0 17.6 18.9 20210623 24.6 24.6 18.5 17.6 18.7 19.0 20210624 24.0 23.9 18.5 17.6 18.3 19.0 20210723 23.8 24.2 18.5 18.6 18.7 19.0 20210724 24.0 24.1 18.5 18.0 17.9 19.0 20210731 23.5 24.5 18.5 18.1 17.4 19.0 20210809 24.6 24.6 18.5 18.7 17.8 19.0 20210810 24.1 24.6 18.5 18.1 18.6 19.0 20210813 24.0 24.3 18.5 18.9 18.2 19.0 20210916 23.1 23.6 18.5 17.9 18.8 19.0 20210917 23.5 23.1 18.5 17.9 18.2 19.0 20210918 23.8 23.9 18.5 17.8 18.3 19.0 20210919 24.0 23.5 18.5 17.7 18.5 19.0 20211005 22.9 23.9 18.5 18.5 18.5 19.0 20211006 23.8 24.0 18.5 18.2 18.3 19.0 20211007 23.3 23.2 18.5 18.6 18.4 19.0 20211117 23.7 23.2 18.4 18.1 18.4 19.0 20211118 23.9 23.7 18.4 18.0 17.8 19.0 20211119 23.5 23.6 18.4 18.3 18.1 19.0 20211223 23.8 24.0 18.3 18.2 18.3 18.9 20211224 23.8 24.2 18.3 18.4 18.5 18.9 20211225 23.4 23.8 18.3 18.2 18.4 18.8 20211226 23.6 23.8 18.3 18.4 17.9 18.8 
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表 2 水温配对样本统计表
Table 2. Statistics of paired water temperature samples
平均值（Bq/L） 个案数 标准偏差 标准误差平均值 配对1 5井水温 18.4250 40 0.0870 0.0138 2井水温 18.8675 40 0.1385 0.0219 配对2 5井-2井水温 -0.4425 40 0.1035 0.0164 注：标准偏差指样本分散值之间差值大小；标准误差平均值指样本平均值与整体平均值的差异，下同。
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表 3 两井氡值配对统计表
Table 3. Pairing statistics of radon values of two wells
平均值（Bq/L） 个案数 标准偏差 标准误差平均值 配对 1 5井主样 23.703 40 0.4599 0.0727 2井主样 18.225 40 0.3948 0.0624 配对 2 5井副样 23.865 40 0.4377 0.0692 2井副样 18.283 40 0.3812 0.0603 配对 3 5井均值 23.784 40 0.3920 0.0620 2井均值 18.254 40 0.2690 0.0425 配对 4 5井主样-2井主样 5.4777 40 0.6344 0.1003 配对 5 5井副样-2井副样 5.5820 40 0.6271 0.0992 配对 6 5井均值-2井均值 5.5299 40 0.4856 0.0768
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[1] 中国地震局. 地震水文地球化学观测技术规范[M]. 北京: 地震出版社, 2014: 3-10China Earthquake Administration. Technical specifications for seismic hydrogeochemical observation [M]. Beijing: Seismological Press, 2014: 3-10 [2] 赵影,黄仁桂,王敏. 九江二井氡观测实验研究[J]. 防灾减灾学报,2016,32(3):31-33Zhao Y,Huang R G,Wang M. Research on radon observation at Jiujiang No. 2 well[J]. Journal of Disaster Prevention and Reduction,2016,32(3):31-33 -
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