The study and comparison of heavy metals concentration (Nickel, Lead, Cadmium and Zinc) in the muscle of Otolithes ruber, Parastromateus niger, Scomberomorus commerson and Sphyraena jello from Chabahar area in summer

The heavy metals are from the pollutants which create too much problems in aquatic ecosystems for aquatics and human. This study was done concentration of heavy metals Nickle, Cadmium, Lead and Zinc and risk assessment in the muscle of Otolithes ruber, Parastromateus niger, Scomberomorus commerson and Sphyraena jello in 2013. Ninety six samples of fishes was prepared of coastal and marine from the Chabahar, Iran. Metals were extracted from the tissues using wet Digestion method and concentration of the heavy metals were measured by Atomic Absorption Spectrophotometer Younglin AAS8020. Concentration of Cd was in Parastromateus niger (0.0450 mg Kg-1) higher than other species. Also, the lowest Concentration of this element was in Otolithes ruber and Scomberomorus commerson (0.0150 mg Kg-1). Concentration of Pb was in Sphyraena jello (0.0125 mg Kg-1) lower than other species. Concentration of Ni was in Sphyraena jello (4.1800 mg Kg-1) higher than other species. Also, the lowest Concentration of this element was in Scomberomorus commerson (0.0150 mg Kg-1). Concentration of Zn was in Sphyraena jello (0.5450 mg Kg-1) higher than other species. Also, the lowest Concentration of this element was in Scomberomorus commerson (0.0150 mg Kg-1). Concentration of Cd, Pb and Zn was lower than comparison of FAO, WHO, UKMAFF, NHMRC and FDA. Concentration of Ni was higher than comparison ofGlobal Standards. According to the results, the amount of heavy metals in muscle of fishes in the study not take any risks for human consumption.