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http://dx.doi.org/10.14249/eia.2022.31.5.286

A Study on the Distribution and Reduction Method of Indoor Radon Concentration in Daejeon Metropolitan City  

Jang, Yong-Chul (Department of Environmental Science and Engineering, Chungnam National University)
Yang, Jae Hwan (Department of Environmental Science and Engineering, Chungnam National University)
Kim, Hongkyoung (Department of Environmental Science and Engineering, Chungnam National University)
Lee, Gain (Department of Environmental Science and Engineering, Chungnam National University)
Song, Hakyun (Department of Environmental Science and Engineering, Chungnam National University)
Kim, Byeonghwan (Department of Environmental Science and Engineering, Chungnam National University)
Kwon, Youngsun (Department of Environmental Science and Engineering, Chungnam National University)
Publication Information
Journal of Environmental Impact Assessment / v.31, no.5, 2022 , pp. 286-295 More about this Journal
Abstract
In this study, the concentration distribution of indoor radon in Daejeon Metropolitan City was investigated and the reduction efficiency was evaluated by applying the radon reduction methods. Based on the results of the National Institute of Environmental Research, indoor radon measurements were conducted on 24 selected houses, and the average value of District A was 261 Bq/m3, far exceeding the standard, and even in the same house, indoor radon concentration was affected by measurement point and time. In the case of eight houses that applied the soil venting method to reduce radon, the indoorradon level was significantly lowerthan the standard value, and the average reduction efficiency was also around 55%, indicating a good reduction effect. In addition, the average reduction efficiency was around 90% in the two houses that carried out the shielding method, showing the very excellent effect of the indoorradon reduction. Even if the same reduction method is applied when reducing radon, the reduction efficiency may vary depending on various factors such as the structure of the building, the frequency of ventilation, and the season, so it is necessary to accurately evaluate the effectiveness of the reduction method in the future. Based on this, it is necessary to establish indoor radon management measures in Daejeon Metropolitan City to reduce human harm caused by radon exposure.
Keywords
Indoor radon; soil venting method; shielding method; radon risk; radon reduction method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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