The aim of this study was to determine total mercury and methyl mercury level in fishes (Deepsea Fish, Tuna, Billfish) and fishery products. A total of 101 fishes and 44 fishery products samples collected from commercial market in Gyeonggi-do. Total mercury were analysed by mercury analyzer and methyl mercury were analyzed by gas chromatography with electron capture detector. In the fishes, total mercury was detected in all samples and methylmercury was detected in 92 samples of them. The detection rate of methylmercury was 91.1% in fishes. The mean concentration (mg/kg) of total mercury and methylmercury were 1.968 ± 0.505/0.496 ± 0.057 for Billfish, 0.665 ± 0.091/0.252 ± 0.033 for Deep-sea Fish and 0.577 ± 0.085/0.218 ± 0.025 for Tuna, respectively. The Swordfish contains the highest level of total mercury (1.968 mg/kg) and methylmercury (0.496 mg/kg). In Mabled rockfish, the ratio of methylmercury’s contents about total mercury’s contents was the highest as 66.5%. In case of fishery products, frozens made of 100% of raw material contained the highest level of total mercury and methyl mercury. The weekly intake of total mercury and methylmercury was calculated in 4.72% and 5.24% of Provisional Tolerable Weekly Intake (PTWI) respectively. This study showed that the weekly intake of methylmercury from Deep-sea Fish, Tuna and Billfish was less than the PTWI recommended by the Joint FAO/WHO expert committee on food additives.

Materials and Methods
  시료
  시약 및 표준용액
  시료의 전처리
  수은 및 메틸수은 기기분석
  통계적 분석 및 위해성 평가
 Result and Discussion
  총수은 및 메틸수은 분석법 검토
  수산물 중 총수은 및 메틸수은 함량
  어류가공품 중 총수은 및 메틸수은 함량
  총수은 및 메틸수은 위해성 평가
 국문요약
 References

• 강석호(경기도보건환경연구원 안산농수산물검사소, Ansan Agro-fishery Products Inspection Center, Gyeonggi-Do Institute of Health and Environment) | Suk-Ho Kang
• 이명진(경기도보건환경연구원 안산농수산물검사소, Ansan Agro-fishery Products Inspection Center, Gyeonggi-Do Institute of Health and Environment) | Myung-Jin Lee Correspondence to
• 김재관(경기도보건환경연구원 안산농수산물검사소, Ansan Agro-fishery Products Inspection Center, Gyeonggi-Do Institute of Health and Environment) | Jae Kwan Kim
• 정유정(경기도보건환경연구원 안산농수산물검사소, Ansan Agro-fishery Products Inspection Center, Gyeonggi-Do Institute of Health and Environment) | You-Jung Jung
• 허은선(경기도보건환경연구원 안산농수산물검사소, Ansan Agro-fishery Products Inspection Center, Gyeonggi-Do Institute of Health and Environment) | Eun-Seon Hur
• 조윤식(경기도보건환경연구원 안산농수산물검사소, Ansan Agro-fishery Products Inspection Center, Gyeonggi-Do Institute of Health and Environment) | Yoon-Sik Cho
• 모아라(경기도보건환경연구원 안산농수산물검사소, Ansan Agro-fishery Products Inspection Center, Gyeonggi-Do Institute of Health and Environment) | Ara Moh
• 박광희(경기도보건환경연구원 안산농수산물검사소, Ansan Agro-fishery Products Inspection Center, Gyeonggi-Do Institute of Health and Environment) | Kwang-Hee Park