摘要：Presence of heavy metals at high concentrations in edible fish might lead to some health issues forconsumers. The current work determined the concentrations of four heavy metals Cd, Pb, Zn and Cuin seawater, gills and muscles of two common fishes, Mugil cephalus and Lethrinus miniatus,collected in summer 2014 from two different areas of Red Sea, Jazan, Saudi Arabia, using ICP-AESafter microwave digestion procedure. The concentrations of investigated metals were higher in thegills than in muscles for the two fish species. However, the concentration of zinc was higher thanother metals in all samples, in the following order Zn>Cu>Pb>Cd. The average of maximum metalconcentration was measured for Zn (11.087 ± 1.672 mg kg -1 w.w) in the gills of Lethrinus miniatus, Cu(0.548 ± 0.249 mg kg -1 w.w) in the gills of Mugilcephalu, Pb (0.131 ± 0.092 mg kg -1 w.w) in the gills ofMugilcephalu, and Cd (0.064 ± 0.017 mg kg -1 w.w) in the gills of Lethrinus miniatus. Concentration ofinvestigated metals in water was following the same order in the fish tissues Zn>Cu>Pb>Cd, with amaximum detected concentrations of 0.0233, 0.0085, 0.0059, and 0.0023 mg L -1 , respectively. Despitethe detection of heavy metals in the edible tissues of investigated fish, the concentrations were withinthe recommended maximum residual level of FAO/WHO and EU. Therefore, the investigated fish mightbe considered safe for human consumption. More extended investigations are highly recommended.
关键词：Heavy metal;
Seawater concentration;
Mugil cephalus;
Lethrinus miniatus;
Red sea
