Background and Aims: Fish consumption is an important route of human exposure to heavy metals. In order to assess the potential health risks associated with these contaminants due to fish consumption, fish samples of Cyprinus carpio were collected from Zarivar wetland. Materials and Methods: Atomic absorption spectroscopy was performed to determine the presence of metals. Cd and Pb were identified by graphite furnace technique, and flame technique was employed as a means of Zn identification. In this research, daily intake and hazard indices of heavy metals in fish muscle tissue samples were performed based on the U.S. Environmental Protection Agency (EPA) fish consumption. Also ethical issues were considered during data collection and throughout the study.Results: The concentrations of heavy metals in muscle tissues were lower than allowable mean concentrations of international standards (WHO, FAO, MAFF and FDA). The Non-carcinogenic Hazard Quotient (NHQ) of all studied metals was less than 1.0. Non-carcinogenic hazard quotients (NHQ) for Cd, Pb, Zn in common carp were 0.036, 0.008, 0.039, also HI were 0.084.Conclusion: In conclusion, metal contents in this species are acceptable for human consumption from a toxicity point of view. HI in common carp was less than unity, suggesting that the consumption of the common carp is unlikely to cause any adverse health effects to consumers.Key words: Heavy Metals, World Standards, Daily Intake, Hazard Quotient, Common Car
