Korea Institute of Nuclear Safety, 62 Gwahak-ro, Yuseong-gu, Daejeon 34142, Republic of Korea.
Department of Nuclear Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea.
Radiat Prot Dosimetry. 2022 Jul 1;198(8):472-481. doi: 10.1093/rpd/ncac085.
The objective of this study is to determine indoor radon concentrations for 11 counties in Korea, develop a detailed radon distribution map and compare the results by some factors influencing indoor radon levels. The radon survey was conducted for 7 y in provisional radon-prone areas selected based on the previous national surveys. The total number of samples was >2.5% of the entire dwellings by each county. The annual average indoor radon concentration for the survey areas had a geometric mean of 94 Bq m-3 with 6.6% of all sampled dwellings showing values exceeding 300 Bq m-3. Some areas with relatively high indoor radon concentration were identified through a spatial distribution map. Seasonal variations were observed with commonly the highest concentration in winter, and house characteristics influencing indoor radon levels. This study can serve as a basis for developing national radon action plans and guide for additional regional radon surveys.
本研究旨在确定韩国 11 个郡的室内氡浓度，绘制详细的氡分布图，并通过一些影响室内氡水平的因素进行比较。氡调查在根据以往全国调查选定的暂定氡高发地区进行了 7 年。每个郡的样本总数超过了全部住宅的 2.5%。调查地区的年平均室内氡浓度几何平均值为 94 Bq m-3，有 6.6%的抽样住宅的氡浓度超过 300 Bq m-3。通过空间分布图确定了一些室内氡浓度相对较高的地区。观察到季节性变化，通常冬季浓度最高，以及影响室内氡水平的房屋特征。本研究可以为制定国家氡行动计划和指导进一步的区域氡调查提供依据。
