| 土壤和建筑材料表面氡析出率对室内氡浓度的影响 |
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| 引用本文： | 贺小凤,王国胜,符适.土壤和建筑材料表面氡析出率对室内氡浓度的影响[J].深圳信息职业技术学院学报,2011(3):62-67. |
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| 作者姓名： | 贺小凤 王国胜 符适 |
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| 作者单位： | 1. 深圳信息职业技术学院交通与环境学院,深圳,518029
2. 深圳建筑科学研究院,深圳,518049 |
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| 摘 要： | 采用监测数据可靠的RAD7测氡仪，选择深圳市某平房为研究对象，检测到平房周围为土壤氡低背景区，且土壤表面氡析出率较大，约为房间内水泥地板的2倍，说明土壤是室内氡的最大来源：而水泥地板表面氡析出率较瓷砖地板大，约为瓷砖地板的4倍。铺有水泥地板的房间室内氡浓度大于铺有瓷砖地板的房间，这是由于水泥地板表面氡析出率较大。因此，为了减少室内氡浓度，应该尽可能选择表面氡析出率低的材料铺设地板，并保持开窗通风。
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| 关 键 词： | 土壤 建筑材料 表面氡析出率 室内氡浓度 |
The effect of Radon Exhalation Rates from Soil and Building Material Surfaces on Indoor Air Radon Concentration |
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| HE Xiaofeng,WANG Guosheng,FU Shi.The effect of Radon Exhalation Rates from Soil and Building Material Surfaces on Indoor Air Radon Concentration[J].Journal of Shenzhen Institute of Information Technology,2011(3):62-67. |
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| Authors: | HE Xiaofeng WANG Guosheng FU Shi |
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| Institution: | HE Xiaofeng1,WANG Guosheng1,FU Shi2(1.Department of Computer Application,Shenzhen Institute of Information Technology,Shenzhen 518029,P.R.China)(2.Shenzhen Institute of Building Research Co.,Ltd.,Shenzhen 518049,P.R.China) |
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| Abstract: | Using the reliable RAD7 radon detector, we measured the level of radon concentration in and around a one-story house in Shenzhen City. Results showed the radon concentration in the soil around the one-story house formed a low background of soil radon; the soil surface radon exhalation rate outside the house was two t,t,,~~ of indoor cement floor, indicating that soil is the largest source of indoor radon. It was also found that the surface radon exhalation rate of cement floor was 4 times that of ceramic tile floor. Indoor radon concentration in rooms with cement floor was higher than that of rooms with ceramic tile floor due to the larger surface radon exhalation rate of cement floor. Therefore, to reduce indoor radon concentration, we should select floor materials with low surface radon exhalation and keep windows open for ventilation. |
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| Keywords: | Soil Building materials Surface radon exhalation rate Indoor air radon concentration |
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