Abstract
Aluminium (Al) foil can leach metals into fish during roasting, potentially creating health implications, which informed this study. The roasted (using Al foil) and unroasted fish (control) samples (n = 48) were analysed for metals (Al, Co, Pb, Ni, Cr, Cd, and As) using ICP-AES. The following ranges were recorded for Al (5.51 - 6.35 mg/kg), Co (0.25 - 0.35 mg/kg), Pb (0.48 - 0.65 mg/kg), Ni (2.37 - 4.70 mg/kg), Cr (0.25 - 0.43 mg/kg), Cd (0.05 - 0.07 mg/kg), As (0.32 - 0.45 mg/kg). According to redundancy analysis, foil area had the most influence on metal leaching. The percentage weight loss of the foil after fish roasting indicates leaching of its metal contents into the fish. The EDI and THQ of As, and HI of metals indicate potential risk over time, as a result, roasting of fish with foil should be discontinued.
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