Evaluation of metal levels of common octopus (Octopus vulgaris): health risks estimation

The levels of 13 different metals (Mg, P, K, Fe, Cu, Zn, Mn, Se, Al, Cr, As, Cd and Pb) in mantle and arm tissues of Octopus vulgaris species, which were caught from Mersin Bay in winter, spring and summer seasons, were determined. The results were compared between the tissues and seasons. Potential health risks of consumption of common octopus, which is an economically important species, were evaluated with the possibility that adult and child consumers will consume common octopus 1, 3 or 5 days a week. In this context, Estimated Weekly Intake Level (EWI), non-carcinogenic Target Hazard Quotient (THQ) and Lifetime Carcinogenic Risk (CR) were determined. Pb level was found to be above the limit level determined by FAO, EU and Turkish Food Codex. EWI values were found to be below the PTWI values determined by EFSA and FAO / WHO. THQ and ∑THQ values, which are indicative of non-cancer health risks for consumers, were determined as <1. In terms of carcinogenic risk, it was determined that these values (> 10-5) for As, Cr and Cd elements pose a carcinogenic risk to the consumer, but Pb values do not pose a risk.