식품 중 총 PCBs의 분석 및 노출량 평가
Analysis and exposure assessment of the total PCBs in foods
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국내에 유통 중인 식품을 대상으로 PCBs 62종 동족체를 동위원소희석법으로 분석하고 노출평가를 실시하였다. 시료에 13C-labeled된 회수율 측정용 표준용액을 가하여 추출하고 다층 칼럼 크로마토그래피로 정제하여 HRGC/MSD로 분석하였다. 식품 중 평균 검출량(ng/g)은 쌀 0.13, 육류 1.8~3.4, 우유 및 유가공품 0.3~3.7, 계란 10.0, 수산물 0.8~34.4 이었다. 식품군별 검출분포는 수산물(94.4%) ＞육류(2.3%) ＞알류(1.7%) ＞ 우유 및 유가공품(1.3%) ＞쌀(0.3%) 순이었다. 식품을 통한 총 PCBs의 1일 노출량은 14.5 ng/kg bw/day로 건강상 안전한 것으로 평가되었다.
Abstract
Total PCBs (62 congeners) has been determined in the retailed foods by the isotopic dilution method and the exposure assessment has been performed. Put into a food sample 13C-labeled standard for recovery was added and then it was extracted, cleaned-up by multi-layer column chromatography and then analyzed by HRGC/MS. The average levels (ng/g) detected was 0.1 for rice, 1.8~3.4 for meats, 0.3~3.7 for milk and dairy products, 10.0 for egg and 0.8~34.4 for fishes. Distribution of total PCBs was in order of fishes (94.4%) ＞ meats (2.3%) ＞ eggs (1.7%) ＞ milk and dairy products (1.3%) ＞ rice (0.3%). The estimated daily intake(EDI) was 14 ng/kg bw/day. It was concluded that there was no health risk at all.
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