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http://dx.doi.org/10.9721/KJFST.2013.45.3.376

A Study on Total Mercury and Methylmercury in Commercial Tuna, Billfish, and Deep-sea Fish in Seoul Metropolitan City  

Kim, Jin-Ah (Gangnam Agro-marine Products Inspection Center, Seoul Metropolitan Government Research Institute of Public Health and Environment)
Yuk, Dong-Hyun (Gangnam Agro-marine Products Inspection Center, Seoul Metropolitan Government Research Institute of Public Health and Environment)
Park, Young-Ae (Gangnam Agro-marine Products Inspection Center, Seoul Metropolitan Government Research Institute of Public Health and Environment)
Choi, Hee-Jin (Gangnam Agro-marine Products Inspection Center, Seoul Metropolitan Government Research Institute of Public Health and Environment)
Kim, Youn-Cheon (Gangnam Agro-marine Products Inspection Center, Seoul Metropolitan Government Research Institute of Public Health and Environment)
Kim, Moo-Sang (Gangnam Agro-marine Products Inspection Center, Seoul Metropolitan Government Research Institute of Public Health and Environment)
Publication Information
Korean Journal of Food Science and Technology / v.45, no.3, 2013 , pp. 376-381 More about this Journal
Abstract
In this study, we monitored total mercury and methylmercury concentrations in tuna, billfish, and deep-sea fish distributed in Seoul city. With the acquired data, we carried out statistical analysis and an exposure assessment for intake. The mean concentrations (mg/kg) of total mercury and methylmercury were $0.32{\pm}0.31/0.20{\pm}0.20$ for tuna, $0.43{\pm}0.48/0.20{\pm}0.17$ for patagonian toothfish, $0.99{\pm}0.72/0.51{\pm}0.40$ for billfish and $1.20{\pm}0.70/0.95{\pm}0.51$ for sharks, respectively. We found that sharks, billfish, patagonian toothfish, and tuna were more contaminated with total mercury and methylmercury, in sequence, and that 66% of the total mercury concentration consisted of methylmercury, on average. Although the estimated weekly intakes of methylmercury from commercial deep-sea fish were lower than the weekly intakes recommended by the Joint FAO/WHO Expert Committee on Food Additives (JECFA), we identified that the total mercury and methylmercury concentrations in tuna, billfish, and deep-sea fish continued to increase with the passage of time. Therefore, we confirmed the necessity of continuous monitoring and comprehensive analysis for general safety.
Keywords
total mercury; methylmercury; deep-sea fish; estimated weekly intakes; statistical analysis;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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