Monitoring of indoor radon concentration in multistory building by passive and active methods
Measurement of indoor radon was carried out in three areas: area A (every floor of a two-story building), area B (third floor room of a newly built four-story building), and area C (eleventh floor room of a 15- story apartment house). Radon concentrations were measured by passive and active methods (passive method: etched-track detector, active method: continuous measurement) in area B, and the passive method only in area A and area C. The mean concentrations of radon determined by the passive and the active methods in area B were 2. 9 and 1.8pCi/L, respectively. Measurements obtained with the passive method were in average 1.6 times higher than with the active method. The average radon concentration in area C (1.7pCi/L, range 1.3-2. 1pCi/L) was slightly higher than in area A (1.3pCi/L, range 0. 6-2. 1pCi/L). The results show that more detailed studies on the sources and rates of radon emissions in multistory buildings are necessary.
indoor radon multistory building passive and active methods continuous measurement etched-track detector
S. P. Jeong H. T. Chon H. K. Je
School of Civil, Urban and Geosystem Engineering, College of Engineering, Seoul National University, Samdoo Co. Ltd. , 307-2 Sangdaewon-dong, Jungwon-gu, Seongnam-si, Gyeonggi-do 462-120, Korea
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
408-409
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）