Factors underlying persistently high radon levels in a house located in a karst limestone region of Ireland – lessons learned about remediation
Factors underlying persistently high radon levels in a house located in a karst limestone region of Ireland – lessons learned about remediation
复制标题
位于爱尔兰喀斯特石灰岩地区的一所房屋氡气浓度持续居高不下的因素——修复的经验教训
DOI：
10.1515/nuka-2016-0054
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
E. Monahan
中科院分区：
文献类型：
--
作者：
S. Long;D. Fenton;C. Scivyer;E. Monahan
摘要对氡浓度升高的建筑物进行补救通常是简单的。然而，在某些情况下，可能需要多次尝试才能将浓度降至参考水平以下，有时可能不可能以具有成本效益的方式将浓度降至参考水平以下。本文详细介绍了2004至2012年间为降低一所初始氡浓度接近1500Bq/m~3的房屋内的氡浓度而开展的工作。在这段期间，尽管采取了各种氡补救措施，但仍持续录得高水平的氡。进行了十次补救工作，进行了29次氡测试，以衡量这项工作的效果。文章描述了这座房子的结构和它所基于的喀斯特地质，以及这些因素对降低浓度所遇到的困难的可能贡献。最终，氡浓度降到了大约450Bq/立方米，但如果不对房子进行大规模和昂贵的翻修，就不会认为进一步减少是可行的。尽管如此，到目前为止开展的补救工作已经显著降低了房主患肺癌的风险。这项工作还增加了对爱尔兰氡修复技术的了解，特别是对建造在岩溶石灰岩上的房屋。
Abstract The remediation of buildings with elevated radon concentrations is generally straightforward. However, in some cases a number of attempts may be needed to reduce concentrations to below the reference level and, occasionally, it may be impossible to reduce concentrations to below the reference level in a cost effective way. This paper details the work carried out between 2004 and 2012 to reduce radon concentrations in a house with initial radon concentrations of almost 1500 Bq/m3. Over this period, high radon levels were consistently recorded despite the introduction of various radon remedial measures. Remedial work was carried out on ten occasions with 29 radon tests carried out to measure the effect of this work. The paper describes the structure of the house and the karst geology that it is built on and the likely contribution of these factors to the difficulties encountered reducing concentrations. Ultimately, radon concentrations were reduced to about 450 Bq/m3 but no further reductions were considered practicable without substantial and costly renovation to the house. Nonetheless, the remedial work carried out to date has resulted in a significant reduction in the risk to the homeowner of developing lung cancer. This work has also added to the understanding of radon remediation techniques in Ireland, particularly for houses built on karst limestone.