Study of white leg shrimp (Litoppenaeus vannamei) in Bushehr province shrimp complexes with the perspective of contamination by heavy metals (As, Cd, Cu, Fe, Hg, Ni, Pb, and Zn) and risk evaluation for consumer

Abstract

This research was carried out to determine the concentration of heavy metals in Pacific white leg shrimp cultured in farms of Ganaveh, Deylam, Hillah, Mand, Delvar and Shif and its consumption risk. The shrimp samples were prepared based on the standard methodology. The health risk of its consumption was evaluated according evaluated according to the daily intake (DI) index. Our results showed that the shrimp reared in the Deylam site had the maximum values of toxic metals mercury, nickel, and zinc compared to other sites of Bushehr Province. The concentrations of As, Cd, Cu, Fe, Hg, Ni, Pb, and Zn in shrimp muscle were 0.021, 0.028, 11.725. 42.003, 0.095, 3.278, 0.122 and 6.748 mg/kg dry weight (DW), respectively. Based on the findings, the concentration of Cu and Ni were significantly higher than the permissible maximum recommended amounts for human consumption by the world health organization (WHO), and they were 0.38 and 10 mg/kg DW, respectively. On the other hand, the health risk evaluation of the maximum tolerable daily intake (MTDI) of heavy metals showed that daily and continuous consumption of shrimp is safe for consumers in different age groups (children, adults) and despite the high levels of nickel and copper, there is no serious risk to consumers.

Keywords

• heavy metals
• pacific white leg shrimp
• bushehr province
• risk evaluation
• consumers health