한국산 수산물의 총 수은 및 메틸수은 농도 및 위해도 평가
Concentrations and Risk Assessment of Total Mercury and Methyl Mercury in Commercial Marine Fisheries from Korea
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초록
Total mercury (T-Hg) and methyl mercury (MeHg) were determined in marine fisheries (41 species, n=87) commonlyconsumed in Korea, using a gold amalgamation method and gas chromatography-cold vapor atomic fluorescentspectroscopy, respectively. Concentrations of T-Hg and MeHg in all samples (31 fish, 4 crustaceans, 4 cephalopods,and 2 gastropod species) were in the range of 0.016-0.495 (mean, 0.093) mg/kg-wet and not detected-0.338 (mean,0.067) mg/kg-wet, respectively. The concentrations of MeHg in marine fisheries were significantly correlated withT-Hg concentrations (P<0.001). The highest mean concentrations of T-Hg and MeHg were found in fish species, followedby crustaceans. The contribution of MeHg to T-Hg was in the range of 64-95% (mean, 83%) in cephalopods,28-98% (mean, 69%) in fish, and 26-88% (mean, 57%) in crustaceans. The weekly intakes of T-Hg and MeHg byfisheries consumption for the Korean general population were estimated to be 0.463 and 0.338 μg/kg body weight/week, respectively. The concentrations and intakes of T-Hg and MeHg were less than the allowable residue levels andin the range of 12 to 17% of the provisional tolerable weekly intake (PTWI) applied in Korea.
Abstract
Total mercury (T-Hg) and methyl mercury (MeHg) were determined in marine fisheries (41 species, n=87) commonlyconsumed in Korea, using a gold amalgamation method and gas chromatography-cold vapor atomic fluorescentspectroscopy, respectively. Concentrations of T-Hg and MeHg in all samples (31 fish, 4 crustaceans, 4 cephalopods,and 2 gastropod species) were in the range of 0.016-0.495 (mean, 0.093) mg/kg-wet and not detected-0.338 (mean,0.067) mg/kg-wet, respectively. The concentrations of MeHg in marine fisheries were significantly correlated withT-Hg concentrations (P<0.001). The highest mean concentrations of T-Hg and MeHg were found in fish species, followedby crustaceans. The contribution of MeHg to T-Hg was in the range of 64-95% (mean, 83%) in cephalopods,28-98% (mean, 69%) in fish, and 26-88% (mean, 57%) in crustaceans. The weekly intakes of T-Hg and MeHg byfisheries consumption for the Korean general population were estimated to be 0.463 and 0.338 μg/kg body weight/week, respectively. The concentrations and intakes of T-Hg and MeHg were less than the allowable residue levels andin the range of 12 to 17% of the provisional tolerable weekly intake (PTWI) applied in Korea.
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