Mercury and its compounds are globally managed chemicals as risks to the human body and ecosystem. It mainly enters the human body through ingestion of seafood, especially, methylmercury causes serious diseases such as central nervous system (CNS) disorder and renal dysfunction. In this study, total mercury (Hg) and methyl mercury (MeHg) were determined in seafood (16 species, n = 97) commonly consumed in Daejeon, using a gold amalgamation method. The average concentration (Hg/MeHg mean ± S.D. (minimum–maximun) mg/kg) of total Hg and MeHg in the samples was as follows; Fish 0.038 ± 0.058 (0.004 – 0.272) / 0.028 ± 0.047 (N.D. – 0.236), Crustacea 0.023 ± 0.021 (0.003 – 0.078) / 0.016 ± 0.018 (N.D. – 0.055), Mollusks 0.015 ± 0.015 (0.002 – 0.056) / 0.008 ± 0.013 (N.D. – 0.040). The concentration of MeHg in seafood were significantly correlated with total Hg concentration (p<0.001). The species with the highest average concentration of Hg was the Korean rockfish, but there was no sample that exceeded the maximum residual limit. The total %provisional tolerable weekly intake (%PTWI) value of MeHg for all of the samples was 3.76%, compared with the JECFA’s reference value, which indicates that there is almost no health risk from heavy MeHg intake through the consumption of seafood distributed in Daejeon.

Abstract
INTRODUCTION
MATERIALS AND METHODS
    시료
    표준품 및 시약
    기기분석(총수은)
    기기분석(메틸수은)
    수분보정
    유효성 검증
    통계분석 및 위해도평가
RESULTS
    유효성 검증
    총수은 및 메틸수은 함량 분석
CONCLUSION
REFERENCES

• Sangjoon Lee(Daejeon Metropolitan City Institute of Health and Environment) Corresponding author
• Sujin Oh(Daejeon Metropolitan City Institute of Health and Environment)
• Sookkyung Shin(Daejeon Metropolitan City Institute of Health and Environment)
• Daehyun Kim(Daejeon Metropolitan City Institute of Health and Environment)
• Jihyun Lee(Daejeon Metropolitan City Institute of Health and Environment)
• Hojeong Kang(Daejeon Metropolitan City Institute of Health and Environment)
• Gunehee Jo(Daejeon Metropolitan City Institute of Health and Environment)