Determination of selected heavy metals in tuna fish (Thunnus thynnus)

Introduction: Heavy metals of tuna fish (79 individuals) were determined. The variations (mg/kg) were 0.258 – 4.548 for Cu; 3.997 – 18.29 for Zn; ND(Not determined)- 0.012 for Cd; 0.164 – 2.396 for Hg and ND(Not determined)-0.912 for Pb. Mercury contents of 2, and Pb of 6 individuals were above the limits. Objectives: Determining cancer risk of tuna, regarding heavy metals; and providing information for surveillance programs were the objectives. Methods: The 79 individuals of tuna (Thunnus thynnus) from the Eastern Mediterranean Sea, were analyzed regarding Cu, Zn, Cd, Hg, Pb using ICP-MS. Results: For fish, 20…