Journal of the Korean Society of Radiology (한국방사선학회논문지)

The Korean Society of Radiology (한국방사선학회)
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Comparative Evaluation of Radionuclide Concentrations in Domestic Aquatic Products

국내 수산물 방사성핵종 농도 비교 평가

  • Ho-Il Lee (Department of Radiation Oncology, Konyang University Hospital) ;
  • Jeong-Ho Kim (Department of Radiology, Deajeon Health University)
  • 이호일 (건양대학교병원 방사선종양학과) ;
  • 김정호 (대전보건대학교 방사선학과)
  • Received : 2024.11.13
  • Accepted : 2024.11.30
  • Published : 2024.11.30
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Abstract

As environmental changes and awareness of radiation on Earth change negatively, domestic institutions and researchers are conducting radiation assessments of the surrounding environment. In particular, in the case of aquatic products, domestic institutions have been continuously publishing reports every year from 2005 to 2022. Therefore, in this study, since continuous observation of radiation accidents is necessary due to continuous changes in the environment and technological development, we attempted to secure continuity by requesting radionuclide analysis of aquatic products in 2024. Based on the results of radionuclide analysis of aquatic products conducted by individuals and domestic institutions, radionuclide analysis was conducted on mullet, seaweed, and mussels, which are frequently detected by type of aquatic products, and the results for 137Cs and 40K were compared. As a result, 137Cs was found to be up to 1363.0 mBq/kg, and 40K was found to be up to 234.27 mBq/kg. However, results below the minimum detection concentration in domestic institutions were excluded, and there are limitations such as differences in the type and amount of samples and nuclide analyzers. Compared to 137Cs, the 2024 results in 40K have slightly increased from the maximum value, but it can be said to be a safe level based on the standards according to the food process. However, in order to reduce public anxiety and ensure the safe use of radiation, I think that the activities of domestic institutions and many researchers will be necessary continuously.

지구의 환경변화 및 방사선에 대한 인식이 부정적으로 변화됨에 따라 국내 기관이나 연구자들이 주변환경에 대한 방사선 평가를 시행하고 있다. 특히 수산물의 경우에는 국내 기관에서 2005년도부터 2022년까지 매년 지속해서 보고서를 발간하고 있다. 이에 본 연구에서는 환경 및 기술 발전에 따른 변화가 지속됨에 따라 방사선 사고에 대한 지속적인 관찰이 필요하기에 2024년에 수산물의 방사성핵종 분석 의뢰를 통해 연속성을 확보하고자 하였다. 개인 및 국내 기관에서 진행한 수산물의 방사성핵종 분석 결과를 바탕으로 수산물 종류별 빈도가 높은 숭어, 미역, 홍합을 대상으로 방사성핵종 분석을 시행하여 137Cs와 40K에서의 결과값을 비교하였다. 그 결과 137Cs은 최대 1363.0 mBq/kg, 40K은 최대 234.27 mBq/kg으로 나타났다. 다만, 국내 기관에서의 최소 검출 농도 이하의 결과는 배제하였고 시료의 종류, 양, 핵종 분석기의 차이 등을 한계성이 있다. 137Cs에 비해 40K에서 2024년도 결과값이 최대값 대비 소폭 증가하였지만, 식품 공정에 따른 기준에서는 안전한 수준이라고 할 수 있다. 하지만 국민의 불안감 감소와 방사선의 안전한 활용을 위해서는 국내 기관 및 많은 연구자의 활동이 지속해서 필요할 것으로 사료된다.

Keywords

Acknowledgement

본 논문은 2024학년도 대전보건대학교 마이스터대 지원사업의 지원을 받아 작성되었습니다.

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