Bardawil Lake is a unique aquatic ecosystem that provides a habitat for various fish and other marine organisms. This study aimed to analyze the quality of fish species to prove that this lake is free of pollution, not other Egyptian lakes, due to the accumulation of some heavy metals (Cd, Pb, Cu, and Zn) in various tissues of fish species that were caught from this lake. Thirty-five fish samples were caught during the Spring of 2018 from seven different species: Mugil cephalus, Liza auratus, Sparus aurata, Dicentrarchus labrax, Siganus rivulatus, Anguilla angilla, and Solae solea. The Association of Official Analytical Chemists methods using a spectrophotometer determined the biochemical composition. In contrast, atomic absorption spectrometry (AAS) was employed to determine the heavy metals expressed by µg/g wet weight. Results exposed that the accumulation of essential micronutrient (Cu, Zn) content was higher than toxic elements (Cd & Pb) in muscles in order to Zn > Cu > Pb > Cd. Muscles < gills < liver in order of all metals except Pb with order muscles < liver < gills. The metals studied in the muscles were lower than those set by the WHO and the EU standards. The carcinogenic risk with lower allowable limits of 1 × 10–6 to 1 × 10–4 in both normal and high consumption groups; target and total target hazard quotients (THQ & HI) in muscles were < 1. The biochemical composition level was highest in the liver, except for protein, which was highest in muscle for all fish species. There is no evidence of harmful contaminants in the muscular tissue of the fish sampled from Bardawil Lake, although fishing activity. However, customers should know that health concerns may be associated with overeating fish.

中文翻译：

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巴达维尔湖不同器官重金属积累对鱼品质的影响及人体健康风险评估

巴达维尔湖是一个独特的水生生态系统，为各种鱼类和其他海洋生物提供了栖息地。本研究旨在分析鱼类的质量，以证明该湖没有污染，而不是其他埃及湖泊，因为鱼类的各种组织中积累了一些重金属（镉、铅、铜和锌），是从这个湖里捕获的。2018 年春季，从 7 个不同物种捕获了 35 个鱼类样本：Mugil cephalus、Liza auratus、Sparus aurata、Dicentrarchus labrax、Siganus rivulatus、Anguilla angilla 和 Solae solea。官方分析化学家协会使用分光光度计的方法测定了生化成分。相比之下，采用原子吸收光谱法（AAS）测定重金属，以μg/g湿重表示。结果表明，肌肉中必需微量元素（Cu、Zn）积累量高于有毒元素（Cd、Pb），顺序为Zn>Cu>Pb>Cd。除铅外，所有金属的顺序为肌肉 < 鳃 < 肝脏，顺序为肌肉 < 肝脏 < 鳃。肌肉中研究的金属含量低于世界卫生组织和欧盟规定的标准。正常消费组和高消费组的致癌风险允许下限均为1×10-6至1×10-4；肌肉中的目标风险商和总目标风险商 (THQ & HI) < 1。生化成分水平在肝脏中最高，但蛋白质除外，蛋白质在所有鱼类的肌肉中最高。尽管有捕捞活动，但没有证据表明从巴达维尔湖取样的鱼的肌肉组织中存在有害污染物。然而，顾客应该知道，健康问题可能与过量吃鱼有关。