Survey of radioactive contamination in imported foodstuffs

수입 식품중의 방사능 오염실태 조사

  • Lee, Wan-No (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Lee, Haeng-Pil (Water & Sediment Analysis Team, Korea Institute of Coastal Ecology, Inc) ;
  • Chung, Kun-Ho (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Kim, Hee-Reyoung (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Cho, Young-Hyun (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Choi, Geun-Sik (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Lee, Chang-Woo (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Chung, Hyung-Wook (Department of Food Evaluation, Korea Food and Drug Administration) ;
  • Lee, Eun-Ju (Department of Food Evaluation, Korea Food and Drug Administration) ;
  • Sho, You-Sup (Department of Food Evaluation, Korea Food and Drug Administration) ;
  • Lee, Jong-Ok (Department of Food Evaluation, Korea Food and Drug Administration)
  • 이완로 (한국원자력연구소 원자력환경연구부) ;
  • 이행필 (한국연안환경생태연구소 수질.퇴적물 분석팀) ;
  • 정근호 (한국원자력연구소 원자력환경연구부) ;
  • 김희령 (한국원자력연구소 원자력환경연구부) ;
  • 조영현 (한국원자력연구소 원자력환경연구부) ;
  • 최근식 (한국원자력연구소 원자력환경연구부) ;
  • 이창우 (한국원자력연구소 원자력환경연구부) ;
  • 정형욱 (식품의약품안전청 식품평가부) ;
  • 이은주 (식품의약품안전청 식품평가부) ;
  • 소유섭 (식품의약품안전청 식품평가부) ;
  • 이종옥 (식품의약품안전청 식품평가부)
  • Published : 2006.09.30

Abstract

Surveys of radioactive contamination were performed for imported foodstuffs in 2003. The following samples among imported foodstuffs were selected from markets and Korea Food and Drug Administration(KFDA); the imported samples from country associated with the Chernobyl nuclear accident, the samples produced around the nuclear power plants or nuclear tests, the foodstuffs reported as radioacitive contamination materials in foreign country. After pretreatments such as drying and homogenization, samples were analyzed. The $^{137}Cs$ radionuclide was only measured among the regulation radionuclides($^{137}Cs,\;^{134}Cs,\;^{131}I$) of food code. All foodstuffs except Inonotus Obliquus(Chaga mushooms) are less than 17.0 Bq/kg or below the minimum detectable activity(MDA). The activity concentrations of Chaga mushrooms from Russia ranged up to 131.25 Bq/ltg which is almost 35 % of the maximum permitted level of food code. The fraction of imported foodstuffs having meaningful radioactivity is small, however, the radioactive contamination survey of imported foodstuffs is still needed.

2003년도 시중에 유통중인 수입식품에 대한 방사능 오염실태를 조사하였다. 조사 대상시료는 핵실험 및 핵사고 (주변)국가나 원자력발전소를 보유한 국가에서 수입된 식품 중 허용기준치를 초과한 사례가 있는 식품류와 방사능 농도가 일반적으로 높다고 기존에 보고된 식품류 등으로 선정하였다. 모든 시료는 건조 후 분말화하여 사용하였으며, 방사능 농도는 감마핵종분석기를 이용하여 측정하였다. 2003년도에 시장에서 구입한 수입식품 시료에서는 식품공전의 방사능 잠정허용기준에 명시된 핵종(Cs-137, Cs-134, I-131) 중 Cs-137만이 검출되었으며, 나머지 핵종은 모두 최소검출방사능(MDA) 이하였다. 차가버섯을 제외한 수입식품의 방사능 농도는 17.0 Bq/kg이하 또는 모두 MDA값을 보였다. 그러나 러시아에서 수입된 차가버섯의 경우는 최대 131.25 Bq/kg으로 식약청의 식품 중의 방사능 잠정허용기준치인 370 Bq/kg 보다 낮은 값으로 나타났으나, 잠정허용기준치의 35%에 해당되었다. 따라서 전체 차가버섯 중 높은 방사능 농도를 보이는 비율을 낮지만, 국민의 방사능 오염에 대한 민감성을 고려할 때 지속적인 방사능 오염도 평가가 필요할 것으로 사료된다.

Keywords

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