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KMID : 1134820090380040517
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Journal of the Korean Society of Food Science and Nutrition
2009 Volume.38 No. 4 p.517 ~ p.524
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Contents of Heavy Metals in Fishes from the Korean Coasts
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Mok Jong-Soo
Shim Kil-Bo
Cho Mi-Ra
Lee Tae-Seek
Kim Ji-Hoe
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Abstract
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We collected 177 fishes representing 53 species of fish from the eastern (Pohang), western (Gunsan), and southern (Tongyeong) coasts of Korea, and measured their heavy metal contents. The mean recoveries of the heavy metals extracted from cod muscle (certified reference material, CRM) were 88.7~100.6%. The mean levels of the heavy metals in the samples taken from the edible portion of each fish were high in the order of Zn (8.981±4.835 ㎍/g), Cu (0.755±0.507 ㎍/g), and Mn (0.433±0.699 ㎍/g), which are necessary metals in the human body, and then followed by Cr (0.206±0.181 ㎍/g), Ni (0.081±0.110 ㎍/g), Pb (0.038±0.046 ㎍/g), Cd (0.017±0.023 ㎍/g). The average daily intakes of the heavy metals by the fishes were as follows: Cd (0.81 ㎍), Cr (9.98 ㎍), Cu (36.63 ㎍), Mn (21.01 ㎍), Ni (3.93 ㎍), Pb (1.84 ㎍) and Zn (435.58 ㎍). The average weekly intakes of Cd, Cu, Pb and Zn by the fishes were 1.35%, 0.12%, 0.86%, and 0.73% respectively, as compared with PTWI (Provisional Tolerable Weekly Intakes) established by FAO/WHO Expert Committee for Food Safety Evaluation.
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KEYWORD
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fish, heavy metal, daily average intake, provisional tolerable weekly intakes
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