Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Trace Metal Contents in Vegetables and Their Safety Evaluations

우리나라 채소류중 미량금속 함량 및 안전성 평가

  • 정소영 (식품의약품안전청 식품평가부) ;
  • 김미혜 (식품의약품안전청 식품평가부) ;
  • 소유섭 (식품의약품안전청 식품평가부) ;
  • 원경풍 (식품의약품안전청 식품평가부) ;
  • 홍무기 (식품의약품안전청 식품평가부)
  • Published : 2001.02.01
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Abstract

This study was conducted to estimate the contents of trace metals in vegetable which were produced in Korea. The levels of trace metals determined using a mercury analyzer, and ICP (inductively coupled plasma spectrometer) and an AAS (atomic absorption spectrophotometer) after wet digestion. The values of trace metals [minimum~maximum (mean), mg/kg] in vegetables were a follows ; Hg : 0.0001~0.019 (0.002), Pb : 0.001~0.28 (0.02), Cd : 0.001~0.078 (0.016), As : 0.001~0.06 (0.02), Cu : 0.06~24.81 (0.77), Mn : 0.17~15.12 (2.32), Zn : 0.13~28.70 (2.51). These results showed that metal contents in vegetables on domestic markets were similar to those reported in other countries. The weekly average intakes of lead, cadmium and mercury from vegetables take 2~7% of PTWI (Provisional Tolerable Weekly Intakes) that the FAO/WHO Joint Food Additive and Contaminants Committee had set to evaluate their safeties.

국내에서 생산된 채소류 15종 620건에 대해 수은 함량은 Mercury analyzer로, 납, 카드뮴, 비소, 구리 , 망간, 아연 등은 습식분해 후 ICP로 분석하였다. 본 연구 결과, 채소중 미량금 속 함량(최소~최대(평균), mg/kg)은 수은 0.0001~0.019 (0.002), 납 0.001~0.28(0.02), 카드뮴 0.001~0.078(0.016), 비소 0.001~0.06(0.02), 구리 0.06~24.81(0.77), 망간 0.17~15.12(2.32), 아연 0.13~28.70(2.51)으로 나타났다. 본 연구에서 얻어진 분석치들은 국내외 다른 연구자들의 분석치와 비슷한 것으로 나타났으며, 이는 우리나라에서 생산된 채소류중의 미량 금속 함유량은 오염된 수준이 아닌 자연 함유량 수준인 것으로 파악되었으며, 우리나라 사람이 이들 농산물로 부터 섭취하는 미량급속의 양은 안전한 것으로 판단된다. 또한 우리나라 국민이 채소류를 통해 섭취하는 납, 수은, 카드뮴 등의 중금속 주간섭취량은 FAO/WHO에서 중급속 안전성 평가를 위해 정한 PTWI의 2~7%를 차지하고 있다.

Keywords

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