title: Natural radon reduction rate of the community groundwater system in 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.
authors.affiliation: Korea Institute of Geosciences and Mineral Resources (KIGAM), 124, Gwahakro, Yuseonggu, Daejeon, South Korea.
authors.forename: Uk
authors.initials: U
authors.lastname: Yun
authors.affiliation: National Institute of Environmental Research (NIER), Hwangyongro 42, Seogu, Incheon, South Korea.
authors.forename: Tae
authors.initials: T
authors.lastname: Seong Kim
authors.affiliation: National Institute of Environmental Research (NIER), Hwangyongro 42, Seogu, Incheon, South Korea.
authors.forename: Hyun Koo
authors.initials: HK
authors.lastname: Kim
authors.affiliation: National Institute of Environmental Research (NIER), Hwangyongro 42, Seogu, Incheon, South Korea.
authors.forename: Moon Su
authors.initials: MS
authors.lastname: Kim
authors.affiliation: Korea Institute of Geosciences and Mineral Resources (KIGAM), 124, Gwahakro, Yuseonggu, Daejeon, South Korea.
authors.forename: Soo Young
authors.initials: SY
authors.lastname: Cho
authors.affiliation: Department of Geology, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, South Korea.
authors.forename: Chang Oh
authors.initials: CO
authors.lastname: Choo
authors.affiliation: Korea Institute of Geosciences and Mineral Resources (KIGAM), 124, Gwahakro, Yuseonggu, Daejeon, South Korea. Electronic address: cbw@kigam.re.kr.
authors.forename: Byong Wook
authors.initials: BW
authors.lastname: Cho
mesh_terms: D060587:Groundwater / Q000032:analysis; D006801:Humans; D011834:Radiation Monitoring; D011886:Radon / Q000032:analysis* / Q000302:isolation & purification; D056910:Republic of Korea; D014875:Water Pollutants, Radioactive / Q000032:analysis* / Q000302:isolation & purification; D018508:Water Purification; D014881:Water Supply
chemical_list: D014875:Water Pollutants, Radioactive; D011886:Radon
keywords: Community groundwater system; Radon; Reduction rate; Tank water