한국지하수토양환경학회지:지하수토양환경 (Journal of Soil and Groundwater Environment)

  • 제23권4호
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  • Pages.1-15
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  • 2018
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  • 1598-6438(pISSN)
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  • 2287-8831(eISSN)
한국지하수토양환경학회 (Korean Society of Soil and Groundwater Environment)
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해외원전 비계획적 방출 및 한국의 환경감시 현황 분석

Review of Unplanned Release at Foreign Nuclear Power Plants and Radiological Monitoring at Korean Power Plants

  • 박수찬 (고려대학교 지구환경과학과) ;
  • 함박눈 (고려대학교 지구환경과학과) ;
  • 권장순 (한국원자력연구원 방사성폐기물처분연구부) ;
  • 조동건 (한국원자력연구원 방사성폐기물처분연구부) ;
  • 정지혜 (한국원자력연구원 방사성폐기물처분연구부) ;
  • 권만재 (고려대학교 지구환경과학과)
  • Park, Soo-Chan (Department of Earth and Environment Sciences, Korea University) ;
  • Ham, Baknoon (Department of Earth and Environment Sciences, Korea University) ;
  • Kwon, Jang-Soon (Radioactive Waste Disposal Research Division, Korea Atomic Energy Research Institute (KAERI)) ;
  • Cho, Dong-Keun (Radioactive Waste Disposal Research Division, Korea Atomic Energy Research Institute (KAERI)) ;
  • Jeong, Jihye (Radioactive Waste Disposal Research Division, Korea Atomic Energy Research Institute (KAERI)) ;
  • Kwon, Man Jae (Department of Earth and Environment Sciences, Korea University)
  • 투고 : 2018.06.03
  • 심사 : 2018.07.28
  • 발행 : 2018.08.31
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초록

Despite of safety issues related to radiological hazards, 31 countries around the world are operating more than 450 nuclear power plants (NPPs). To operate NPPs safely, safety regulations from radiation protection organizations were developed and adopted in many countries. However, many cases of radionuclide releases at foreign NPPs have been reported. Almost all commercial NPPs routinely release radioactive materials to the surrounding environments as liquid and gas phases under control. These releases are called 'planned releases' which are planned, regularly monitored, and well documented. Meanwhile, the releases focused in this review, called 'unplanned releases', are neither planned nor monitored by regulatory and/or protection organizations. NPPs are generally composed of various structures, systems and components (SSCs) for safety. Among them, the SSCs near reactors are closely related to safety of NPPs, and typically fabricated to comply with stringent requirements. However, some non-safety related SSCs such as underground pipes may be constructed only according to commercial standards, causing the leakage of radioactive fluids usually containing tritium ($^3H$). This paper discusses SSCs of NPPs and introduces several cases of unplanned releases at foreign NPPs. The current regulation on the environmental radiological surveillance and assessment around the NPPs in South Korea are also examined.

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