Contribution of fish consumption to heavy metals exposure in women of childbearing age from a Mediterranean country (Spain)
Contribution of fish consumption to heavy metals exposure in women of childbearing age from a Mediterranean country (Spain)
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DOI：
10.1016/j.fct.2007.12.024
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发表时间：
2008-05-01
影响因子：
4.3
通讯作者：
Gonzalez-Bulnes, A.
中科院分区：
文献类型：
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作者：
Herreros, M. A.;Inigo-Nunez, S.;Gonzalez-Bulnes, A.
在马德里（西班牙）的一个官方监测项目中，测定了剑鱼（Xiphias gladius，n = 37）和皇带鱼（Luvarus imperialis，n = 17）样品中镉（U）、铅（Pb）和汞（Hg）的浓度。样品消解后（微波消解Hg，干燥箱消解Cd、Pb），采用原子吸收分光光度法（氢化物发生器消解Hg，火焰原子吸收法消解Cd、Pb）测定重金属含量。铅污染是可以忽略不计的两个物种。镉的检出率分别为89.19%和52.94%，超过最大残留限量的样品分别为17.65%和0份。然而，大约90%的鲁瓦鱼样本和大约35%的剑鱼部分的汞含量超过了最大残留限量;大约30%的鲁瓦鱼样本的汞含量甚至超过了1微克/克。食用一份150克卢瓦尔鱼或剑鱼与育龄妇女这些元素的镉和铅临时每周耐受摄入量（PTWI）无关，但它将大大超过汞的耐受值。(C)2008爱思唯尔有限公司保留所有权利。
The concentrations of cadmium (U), lead (Pb) and mercury (Hg) were determined in samples from sword-fish (Xiphias gladius, n = 37) and louvar (Luvarus imperialis, n = 17) taken in an official surveillance programme in Madrid (Spain). The levels of heavy metals were measured by atomic absorption spectrophotometry (hydride generator for Hg and flame atomic absorption for Cd and Pb) after digestion of the samples (microwave digestion for Hg and drying chamber for Cd and Pb). Pb contamination was negligible in both species. Cd was detected in 89.19% of the samples from sword-fisli and 52.94% from louver; 17.65% of louvar and none from sword-fish being higher than maximum residue limits (MRL). However, around 90% of louvar samples and around 35% of sword-fisli portions exceeded MRL for Hg; around 30% of louvar samples having levels even higher than 1 mu g/g. The consumption of one serving of 150 g either of louvar or sword-fish would not be relevant for Cd and Pb provisional tolerable weekly intake (PTWI) of these elements for women in childbearing age, but it would largely exceed the tolerable values for Hg. (C) 2008 Elsevier Ltd. All rights reserved.