Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Residue and Risk Assessment of Polychlorinated dibenzo-p-dioxin/dibenzofurans in the Korean Population

다이옥신류에 의한 한국인의 폭로 현황 및 리스크 평가

  • Received : 2001.10.17
  • Published : 2002.06.25
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Abstract

The human adipose and milk samples analyzed in this study were collected at hospitals in Seoul, Masan and Jinju. The mean values of International Dioxin Toxic Equivalents (I-TEQ) of PCDDs and PCDFs in human adipose samples from the three regions were calculated as 9 pg I-TEQ/g(0.2 ~ 30 pg TEQ/g, lipid weight basis) and 8 pg I-TEQ/g (0.8 ~ 25 pg TEQ/g), respectively. The residue levels of PCDDs-TEQ and PCDFs-TEQ in human milk collected from Masan were 13 pg I-TEQ/g (lipid wt.) and 4.8 pg I-TEQ/g, respectively. On the whole, the contamination levels of these compounds in the Korean population were lower than those in the other countries. Based on the analytical data and assuming a daily intake consumption of 800 mL milk with 3% fat, the average daily intake of PCDDs/DFs via human milk for a baby weighing 5 Kg could be calculated. The daily intake of PCDDs/DFs via breast-feeding was estimated to be 39 pg/kg body weight/day for 2,3,7,8-TeCDD and 86 pg/kg/day for TEQ. These levels are far above all virtually safe dose(VSD) or tolerable daily intake(TDI) values proposed by health authorities in various countries, ranging from 0.001(US EPA) to 4 pg/kag/day (WHO).

서울, 마산 그리고 진주 지역에 거주하는 일반인 체내에 잔류하는 PCDDs/DFs의 축적 레벨은 독성등량으로 환산하여 PCDDs가 평균 9 pg I-TEQ/g(0.2 ~ 30 pg TEQ/g 지방 중량), PCDFs가 8 pg I-TEQ/g (0.8 ~ 25 pg TEQ/g)으로 계산되어졌다. 한편 마산 지역에서 채취된 모유 샘플의 경우 PCDDs가 평균 13 pg I-TEQ/g (lipid wt.), PCDFs가 평균 4.8 pg I-TEQ/g으로 각각 검출되어졌다. 전반적으로 한국인 체내의 PCDDs/DFs의 잔류레벨은 구미 선진국과 비교하여 낮은 수준임을 확인 할 수 있었다. 유아에 있어 수유를 통한 PCDDs/DFs의 일일 폭로량은 유아 체중을 5 kg, 일일 모유 섭취량을 800 mL 로 가정하여 계산되어졌으며, 그 계산 결과 유아의 2,3,7,8-TeCDD의 폭로량은 39 pg/kg body weight/day 이었으며, 총 TEQ로 환산 할 경우 86 pg/kg/day로 계산되어졌다. 이러한 폭로 레벨은 미국의 실질 안전계수(0.001 pg/kg/day) 혹은 WHO가 설정한 TDI(4 pg/kg/day)를 훨씬 초과하는 수준으로, 단기간이지만 수유기에 이루어지는 다량의 PCDDs/DFs의 폭로에 대한 적절한 리스크 평가와 대책 마련이 필요한 것으로 사료된다.

Keywords

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