A Study on the Variation of Rn-222 Concentration in Groundwater at Busan-Geumjeong area

부산 금정구지역의 지하수에 포함된 라돈농도 변화 연구

  • Cho, Jungg-Sook (Department of physics, Pusan National University) ;
  • Lee, Hyo-Min (Department of Geological Sciences, Pusan National University) ;
  • Kim, Sun-Woong (Department of Geological Sciences, Pusan National University) ;
  • Kim, Jin-Seop (Department of Geological Sciences, Pusan National University)
  • 조정숙 (부산대학교 물리학과) ;
  • 이효민 (부산대학교 지질환경과학과) ;
  • 김선웅 (부산대학교 지질환경과학과) ;
  • 김진섭 (부산대학교 지질환경과학과)
  • Received : 2012.06.12
  • Accepted : 2012.08.17
  • Published : 2012.09.30


In this paper, we measured the variations of radon concentrations in groundwater using low-level Liquid Scintillation Counter (LSC), an instrument for analyzing the alpha and beta radionuclides at its 10 sites around the Kumjung-Gu, north-western of Busan. Optimization of Pulse Shape Analyzer (PSA) to determinate the highest value of figure of merit (FM) was decided using Quantulus 1200 LSC with radium-226 source, the optimal PSA level was shown in the range of 100 to 110. The results show that the Minimum Detectable Activity (MDA) of radon concentrations is 0.61 $Bq{\cdot}L^{-1}$ for 20 minutes in PSA level. We find that the average radon concentration in groundwater is high in granitic rock area and low in volcanic rock area. (Biotite granite : 191.39 $Bq{\cdot}L^{-1}$, Micro graphic granite : 141.88 $Bq{\cdot}L^{-1}$, Adamellite : 92.94 $Bq{\cdot}L^{-1}$, Andesite (volcanic) : 35.35 $Bq{\cdot}L^{-1}$). No significant seasonal variation pattern is observed from the long-term variation analysis from 10 selected sites. We have not seen the significant correlation of radon concentration to groundwater temperature, atmospheric temperature, atmospheric pressure and rainfall. The concentration variation is probably caused by more complex factors and processes.


Supported by : 한국연구재단


  1. Commitee on Risk Assessment of Exposure to Radon in Dringking Water, National Research Council. Risk assessment of radon in drinking water. National Academy Press. 1999;5-8.
  2. USEPA. National primary drinking water regulations; Radionuclides (Final rule). 40CFR Parts 9. 2000.
  3. 이효민, 김진섭, 안정근, 손은진, 문기훈. 부산지역 암석, 토양, 지하수 및 지하공간에 대한 라돈의 분포 특성 연구. 대한지질학회 추계학술발표회 초록집. 2006;146.
  4. Przylibski TA, Mamont-Ciesla K, Kusyk M, Dorda J, Kozlowska B. Radon concentrations in groundwaters of the Polish part of the Sudety Mountains (SW Poland). J. Environ. Radioact. 2004;75:193-209.
  5. Mullinger NJ, Binley AM, Pates JM, Crook NP. Radon in Chalk streams: Spatial and temporal variation of groundwater sources in the Pang and Lambourn catchments, UK. J. Hydrol. 2007;339: 172-182.
  6. Skeppström K, Olofsson B. A prediction method for radon in groundwater using GIS and multivariate statistics. Sci. Total Environ. 2006;367:666-680.
  7. Teng TL. Some recent studies on groundwater radon content as an earthquake precursor. J. Geophys. Res. 1980;85:3089-3099.
  8. Igarashi G, Saeki S, Takahata N, Sumikawa K, Tasaka S, Sasaki Y, Takahashi M, Sano Y. Ground-water radon anomaly before the Kobe earthquake in Japan. Sicence. 1995;269:60-61.
  9. Ramola RC, Choubey VM, Negi MS, Prasad Y, Prasad G. Radon occurrence in soil-gas and groundwater around an active landslide, Radiat. Meas. 2008;43:98-101.
  10. Ghosh D, Deb A, Sengupta R. Anomalous radon emission as precursor of earthquake. J. Appl. Geophys. 2009;69:67-81.
  11. Knoll GF. Radiation detection and measurement, 2nd edition. Wiley. 1989:328-370.
  12. Horrocks DL. Application of liquid scintillation counting. New York and London Acdemic Press. 1974:19-32.
  13. Noakes JE, Schonhofer F, Polach HA. Liquid scintillation spectrometry. Radiocarbon. 1992;43: 397-403.
  14. 신현상, 이창우, 이명호. 저준위 액체섬광계수기와 파형분석법을 이용한 수용액 중 라돈-222 및 라듐 -226의 분석법 연구. 원자력연구소. 1998.
  15. Curie LA. Limits for qualitative detection and quantitative determination. Anal. Chem. 1968;40:586.
  16. Salonen L. Measurement of low levels of 222Rn in water with different commercial liquid scintillation counters and pulse-shape analysis. Radiocarbon. 1994;361
  17. Badhan K, Mehra R, Sonkawade RG. Measurement of radon concentration in ground water using RAD7 and assessment of average annual dose in the environs of NITJ, Punjab, India. Ind. J. Pure Appl. Phys. 2010;48:508-511.
  18. Subber ARH, Ali MA, Al-Asadi TM. The determination of radon exhalation rate from water using active and passive techniques. Adv. Appl. Sci. Res. 2011;2(6): 336-346.
  19. Cho JS, Ahn JK, Kim HC, Lee DW. Radon concentrations in groundwater in Busan measured with a liquid scintillation counter method. J. Environ. Radioactiv. 2004;75:105-112.
  20. 이효민, 문기훈, 김진섭, 안정근, 김현철. 부산시 금정구 일대 암석 및 토양에서 일부 환경방사성 핵종들의 분포 특성. 암석학회지. 2008;17:179-190.
  21. 이효민, 김진섭, 김선웅, 문기훈, 안정근. 체계적 모 니터링 시스템에 의한 토양 내 라돈의 시.공간적 변 화 특성 및 요인 분석. 2010년 춘계 지질과학기술 공동학술대회 논문집. 2010:193.
  22. 홍영국, 홍세선. 2002, 국내 기반암의 자연 방사성 원소 함량과 라돈의 유해성(요약문). 한국지구과학회 춘계학술발표 논문요약집. 2002:64.

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