The determined levels of nine heavy metals in imported frozen fish samples are presented in Table 3. The concentrations of heavy metals followed the decreasing order of Zn> Fe> Pb > Co > Cr > Cu > Ni > Mn > Cd in Mackerel tissues; and Fe > Zn > Co > Pb > Cr > Mn > Ni > Cu > Cd in Mackerel gill; and Zn > Fe > Cu > Pb > Co > Cd > Cr > Mn > Ni in Mackerel liver. The heavy metal levels in Striped red mullet tissues were: Fe > Zn > Co > Pb > Mn > Cr > Cu >Cd>Ni:ingillsFe>Zn>Pb>Co>Cr>Mn>Cu>Ni>Cd ; and in liver Fe > Zn > Cu > Pb > Cr > Co > Mn > Cd > Ni. The same heavy metal concentrations in tissues of Groster argentine were: Zn > Fe>Co>Cu>Cr>Mn>Pb>Ni>Cd;ingillsZn>Fe>Co > Pb > Cr > Mn > Cu > Ni > Cd; and in liver Fe > Zn > Cu > Co > Pb > Cr > Mn > Cd > Ni. Heavy metal concentrations in tissues of Commen pandora were: Zn > Fe>Pb>Cr>Mn>N i > Cu>Cd> Co; ingiIlFe>Zn>Pb>Mn>Co>Cr>Ni>Cu>Cd;andinlive r Zn > Fe > Cd > Cu > Pb > Co > Cr > Mn>Ni. Heavymetal concentrations in tissues of Atlantic horse mackerel were: Fe > Zn > Co > Pb>Cr>Cu>Mn>Cd>Ni;ingillsFe>Zn>Pb>Co>Cr > Ni > Mn > Cu>Cd;andin liver Fe>Zn>Pb > Co > Cu>Cd> Mn > Ni > Cr. These
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