Natural radon reduction rate of the community groundwater system in South Korea
Uk Yun1, Tae Seong Kim2, Hyun Koo Kim2
1Korea Institute of Geosciences and Mineral Resources (KIGAM), 124, Gwahakro, Yuseonggu, Daejeon, South Korea.
Abstract:
Tank waters from 13 Community Groundwater Systems (CGS) showed average radon reduction rate of 26.5% (varying from -17.9% to 63.3%). When applying the reduction rate of 26.5% to the nationwide CGS, the percentage of CGS having radon level above 100Bq/L decreases from 28.8% to 22.0%. The natural radon reduction method would be applied to the CGS having radon level slightly exceeding guideline of WHO, as an alternative for aeration or GAC.


