Distribution of heavy metals in internal organs and tissues of Korean molluscan shellfish and potential risk to human health

被引:0
作者
Mok, Jong Soo [1 ]
Kwon, Ji Young [2 ]
Son, Kwang Tae [2 ]
Choi, Woo Seok [2 ]
Kim, Poong Ho [1 ]
Lee, Tae Seek [2 ]
Kim, Ji Hoe [2 ]
机构
[1] Natl Fisheries Res & Dev Inst, Southeast Sea Fisheries Res Inst, Sanyang Up 650943, Tongyoung, South Korea
[2] Natl Fisheries Res & Dev Inst, Food Safety Res Div, Busan 619705, South Korea
关键词
Distribution; Heavy metal; Korea; Molluscan shellfish; Risk assessment; FISH; BIOACCUMULATION; ACCUMULATION; SEAFOOD;
D O I
暂无
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Molluscan shellfish (gastropods and bivalves) were collected from major fish markets on the Korean coast and analyzed for mercury by direct Hg analyzer and for other metals, such as cadmium, lead, chromium, silver, nickel, copper and zinc, using inductively coupled plasma mass spectrometry. Distribution of heavy metals in muscles, internal organs and whole tissues were determined and a potential risk assessment was conducted to evaluate their hazard for human consumption. Heavy metals were accumulated significantly higher (P < 0.05) in internal organs than in muscles for all species. The mean Cd level, which had the highest level of three hazardous metals (Cd, Pb, and Hg) in all internal-organ samples were above the regulatory limit of Korea and the mean level in whole tissue samples of the selected gastropod species, bay scallop and comb pen shell, exceeded the limit (except in a few cases). The sum of the estimated dietary intake of Cd, Pb and Hg for each part of all tested species accounted for 1.59-16.94, 0.02-0.36, and 0.070.16% respectively, of the provisional tolerable daily intake adopted by the Joint FAO/WHO Expert Committee on Food Additives. The hazard index for each part of gastropods and bivalves was below 1.0, however, the maximum HI for internal organs of all analysed species was quite high (0.71). These results suggest that consumption of flesh after removing the internal organs of some molluscan shellfish (all gastropod species, bay scallop and comb pen shell) is a suitable way for reducing Cd exposure.
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页码:1161 / 1167
页数:7
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