Determination of heavy metals including Hg, Pb, Cd, and Cr in edible fishes <i>Liza abu</i>, <i>Brachirus orientalis</i> and attributed cancer and non-cancer risk assessment

Background: Heavy metals are considered as pollutants polluting aquatic ecosystems because of their toxic effects and bioaccumulation in organisms. They can cause chronic poisoning when ingested by human. The present study was conducted to determine the concentration heavy metals, mercury (Hg), lead (Pb), cadmium (Cd), chromium (Cr) muscle tissue Liza abu Brachirus orientalis fish Mahshahr, also, estimate risk consumption these fish. Methods: Forty samples both species were randomly selected after preparation extraction digestion processes, measured using ICP-OES Agilent Model 5100. Results: mean concentrations Hg, Pb, Cd, Cr 0.616 ± 0.383, 1.227 1.77, 0.076 0.030, 0.567 0.267 mg/kg dry weight, 0.846 0.659, 0.515 1.245, 0.061 0.047, 0.586 0.548 mg/ kg respectively. HI for 0.025 0.336, Conclusion: According results this study, Hg slightly higher than some global standards such World Health Organization (WHO) Food Agriculture (FAO). HQ index below 1 two species, meaning that there no non-carcinogenic risk. In all analyzed, carcinogenic above permissible limit 1×10-4 1×10-6 ،other range.