Mercury in fish: concentration vs. fish size and estimates of mercury intake.

M M Storelli, G Barone, G Piscitelli, G O Marcotrigiano
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引用次数: 71

Abstract

Total mercury concentrations were determined in different fish size classes of commercial importance such as, conger eel (Conger conger), starry ray (Raja asterias), forkbeard (Phycis blennoides), frostfish (Lepidopus caudatus), striped mullet (Mullus barbatus), red gurnard (Aspitrigla cuculus) and yellow gurnard (Trigla lucerna) in order to evaluate variations in consumer exposure to mercury as a function of fish consumption of a spectrum of different sizes. The highest mean levels of total mercury were detected in conger eel (0.80 microg g(-1)) and starry ray (0.75 microg g(-1)). Forkbeard (0.67 microg g(-1)), frostfish (0.59 microg g(-1)) and striped mullet (0.55 microg g(-1)) showed slightly lower levels, while red gurnard (0.33 microg g(-1)) and yellow gurnard (0.22 microg g(-1)) exhibited the lowest concentrations. The results of linear regression analysis showed a significant relationship between mercury concentrations and fish size for all species. Consequently, dietary consumption of larger size specimens leads to an increase in the exposure level for consumers. Understanding by consumers of all factors leading to an increase of exposure to mercury is the first step to enable them to make decisions about eating fish.

鱼体内的汞:浓度与鱼的大小和汞摄入量的估计。
测定了具有重要商业价值的不同尺寸鱼类的汞总浓度,如长鳗(conger conger)、星形鳐鱼(Raja asterias)、叉须鱼(Phycis blennoides)、尾状鳞鱼(Lepidopus caudatus)、条纹鲻鱼(Mullus barbatus)、红鳍鱼(Aspitrigla cuculus)和黄鳍鱼(Trigla lucerna),目的是评估消费者对汞的接触随不同尺寸鱼类消费量的变化情况。在长鳗(0.80微克(-1))和星鳐(0.75微克(-1))中检测到的总汞平均水平最高。叉须鱼(0.67 μ g(-1))、霜鱼(0.59 μ g(-1))和斑鲻鱼(0.55 μ g(-1))含量稍低,红鱼(0.33 μ g(-1))和黄鱼(0.22 μ g(-1))含量最低。线性回归分析结果表明,汞浓度与鱼类大小之间存在显著关系。因此,食用较大尺寸的标本会增加消费者的暴露水平。消费者了解导致汞接触增加的所有因素是使他们能够决定是否吃鱼的第一步。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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