Food Hygiene and Control Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt.
Department of Clinical Pharmacy, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia; Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt.
Mar Pollut Bull. 2024 May;202:116391. doi: 10.1016/j.marpolbul.2024.116391. Epub 2024 Apr 23.
Manzala Lake was sampled to assess the concentrations and possible ecological risks of heavy metals. The mean heavy metal levels in the muscles of Nile tilapia, Flathead grey mullets and African catfish were 0.01, 0.15 and 0.29 mg/kg, respectively, for mercury; 3.16, 4.25 and 4.74 mg/kg for arsenic; 1.01, 0.87 and 0.95 mg/kg for lead; and 0.05, 0.12 and 0.06 mg/kg for cadmium. The levels of heavy metals exceeded their maximum permissible limits in most samples. The EDIs of some metals were higher than their PTDIs or BMDLs. The THQs and TTHQs from metal intake were >1 for Hg and Cd. In addition, the TCR values of As in all fish species were higher than 1.0 × 10 indicating a potential health risks from consumption of fish species which need strict hygienic procedures to prevent fish contamination with heavy metals and ensure that their levels did not exceed the maximum permissible limits.
曼扎拉湖被采样以评估重金属的浓度和可能的生态风险。在尼罗河罗非鱼、平头鲻鱼和非洲鲶鱼的肌肉中，汞的平均含量分别为 0.01、0.15 和 0.29 毫克/千克，砷的含量分别为 3.16、4.25 和 4.74 毫克/千克，铅的含量分别为 1.01、0.87 和 0.95 毫克/千克，镉的含量分别为 0.05、0.12 和 0.06 毫克/千克。大多数样本中的重金属含量超过了最大允许限度。一些金属的 EDIs 高于其 PTDIs 或 BMDLs。Hg 和 Cd 的金属摄入量的 THQs 和 TTHQs 均>1。此外，所有鱼类中 As 的 TCR 值均高于 1.0×10，表明食用这些鱼类存在潜在的健康风险，需要严格的卫生程序来防止鱼类受到重金属污染，并确保其含量不超过最大允许限度。
