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Uranium Levels in Groundwater of CGS (Community Groundwater System) of Korea
국내 마을상수도 지하수의 우라늄 함량
Econ. Environ. Geol. 2018 Dec;51(6):543-51
Published online December 31, 2018;  https://doi.org/10.9719/EEG.2018.51.6.543
Copyright © 2018 the Korean society of economic and environmental gelology.

Byong-Wook Cho1*, Moon-Su Kim2, Dong-Su Kim2 and Jae-Hong Hwang3
조병욱1* ·김문수2 ·김동수2 ·황재홍3

1Groundwater and Ecohydrology Research Center, Korea Institute of Geoscience and Mineral Resources
2Soil and Groundwater Research Division, National Institute of Environmental Research
3Geoscience Data Center, Korea Institute of Geoscience and Mineral Resources
1한국지질자원연구원 지하수생태연구센터, 2국립환경과학원 토양지하수연구과, 3한국지질자원연구원 지질자원데이터센터
Received August 6, 2018; Revised October 31, 2018; Accepted November 5, 2018.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
 Abstract
The uranium concentrations were determined in groundwater collected from 3,820 community groundwater system (CGS) located in remote rural areas where access to the nationwide water work is not easy. The frequency distribution of uranium concentrations shows a lognormal distribution which is common in most radionuclide surveys. The measured maximum uranium concentration was 1,757.0 μg/L with an average of 6.46 μg/L and a median of 0.76 μg/L. When grouping the uranium concentration results of CGS into 10 geological units, the median uranium concentration was high (0.99-2.05 μg/L) in three granite areas, and low in sedimentary rocks areas and porous volcanic rocks areas (0.04-0.50 μg/L). Of the 3,820 samples, 3.8% are above the guideline value of 30 μg/L (WHO, 2011). On the other hand, the exceeding rates of JGRA and PGRA CGS are 8.5% and 7.5%, respectively. Therefore, attention should be paid for the development of new CGS along with the management of the existing CGS in JGRA and PGRA areas.
Keywords : uranium, concentration, groundwater, community groundwater system

 

December 2018, 51 (6)