| Keywords |
Construction type ; Dwelling ; Indoor radon concentration ; alpha-track detector |
| Abstract |
The purpose of this study was to compare construction type and seasonal radon concentration in dwellings in Gangwon-do province. We investigated 66 dwellings using alpha-track detector between 2013 and 2014, every three months (seasonal) during one year using an alpha-track detector. The concentration of indoor radon for dwellings were 84.5 (GM: 64.5) Bq/m3, and the range (min-max) was 21.0 to 503.5 Bq/m3. Indoor radon concentration was the highest in winter and the lowest in summer. Indoor radon concentration of "Before 1980(AM: 378.0±378.2, GM: 205.3 Bq/m3)" construction is higher than other construction years (p<0.01). Indoor radon concentration at "General house" was 112.9±149.8 (GM: 78.0) Bq/m3 and at "Traditional korean house" was 194.3±118.6. Indoor radon concentration at "Traditional korean house" was 1.89 (geometric mean) times higher than at the "General house" (p<0.01). Also, Indoor radon concentration at 'Type 1' were 8.13 and 8.06 times higher, respectively, than that at other construction types(Type 2, Type 3). This study suggests that a plan should implement for the management of indoor radon concentration in dwellings, through a broad and detailed survey. |