建筑混凝土氡污染含量动态监测方法  

Study on Dynamic Monitoring Method of Radon Pollution Content in Concrete in Buildings

作　　者：凌飞[1] LING Fei(School of Civil Engineering,Shaanxi Polytechnic Institute,Xianyang 712000,Shaanxi,China)

机构地区：[1]陕西工业职业技术学院土木工程学院,陕西咸阳712000

出　　处：《合成材料老化与应用》2021年第5期108-111,共4页Synthetic Materials Aging and Application

摘　　要：目的:研究建筑混凝土释放氡污染室内的动态监测方法。方法:使用气相色谱设备观察室内空气持续,采用对比气样色谱差值法屏蔽干扰数据,使用投影空间复合放大法充分放大观测数据,获得小于30s检测周期的实时监测数据。结果:气相色谱法检测结果除对Po的检测敏感度低于活性炭盒法外,其他结果质量均优于活性炭盒法,其检测结果质量接近径迹蚀刻法的检测质量。结论:气相色谱法可以作为建筑室内氡气污染动态监测的数据源。Objective:To study the dynamic monitoring method of radon emission from concrete in buildings.Methods:The indoor air was continuously observed by gas chromatography equipment,the interference data was shielded by the method of contrast gas chromatography difference,the data quality problems caused by the discontinuous and incomplete characteristics of data were avoided by using the superposition method of moving data window,and the observation data was fully enlarged by the projection space compound amplification method,and the real-time monitoring period less than 30 s was finally obtained.Results:Except for the sensitivity of Po detection,the quality of other results obtained by gas chromatography was better than that of activated carbon box method,and the quality of detection results was close to that of track etching method.Conclusion:Gas chromatography can be used as a data source for dynamic monitoring of radon pollution.

关 键 词：放射污染 动态监测 数据治理 数据投影放大 氡污染 

分 类 号：TL75[核科学技术—辐射防护及环境保护]