严寒地区与寒冷地区的室内氡浓度和中国节能设计对室内氡的影响。
Indoor Radon Concentrations in Severe Cold Area and Cold Area and Impact of Energy-saving Design on Indoor Radon in China.
机构信息
Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC & National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China.
出版信息
Health Phys. 2024 Dec 1;127(6):682-687. doi: 10.1097/HP.0000000000001869. Epub 2024 Jul 24.
This study investigated indoor radon concentrations in modern residential buildings in the Cold Area and Severe Cold Area in China. A total of 19 cities covering 16 provinces were selected with 1,610 dwellings measured for indoor radon concentration. The arithmetic mean and geometric mean of indoor radon concentration were 68 Bq m -3 and 57 Bq m -3 , respectively. It was found that indoor radon concentrations were much higher in the Severe Cold Area than those in the Cold Area. The indoor radon concentrations showed an increasing trend for newly constructed buildings. It was estimated that the average effective dose from inhalation of indoor radon is 2.15 mSv and 1.60 mSv for the Severe Cold Area and Cold Area, respectively. The more and more rigid energy-saving design for residential buildings in the Severe Cold Area and Cold Area has an obvious impact on the increased trend of indoor radon due to extremely low air exchange rate in China.
本研究调查了中国寒冷地区和严寒地区现代住宅建筑的室内氡浓度。共选取了 19 个城市，涵盖了 16 个省份，对 1610 套住宅进行了室内氡浓度测量。室内氡浓度的算术平均值和几何平均值分别为 68 Bq m -3 和 57 Bq m -3 。结果发现，严寒地区的室内氡浓度明显高于寒冷地区。新建建筑的室内氡浓度呈上升趋势。据估计，严寒地区和寒冷地区由于中国极低的空气交换率，室内氡吸入的平均有效剂量分别为 2.15 mSv 和 1.60 mSv。严寒地区和寒冷地区越来越严格的住宅节能设计，对室内氡浓度的上升趋势产生了明显的影响。
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