Miami, FL, USA
3rd Edition of Infectious Diseases World Conference 2026
Speakers - 2025
Mohamed Z. Sayed Ahmed
- Designation: Department of Infectious Diseases, Mansoura University
- Country: Saudi Arabia
- Title: Health hazards, both cancerous and non cancerous, related to consuming fish tainted with heavy metals from Egypt s Manzala Lake
Abstract
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 × 10−4,, indicating 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.
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