Abstract
Five trace metals, viz. copper (Cu), chromium (Cr), iron (Fe), mercury (Hg) and zinc (Zn), in three organs (muscle, gills and liver) of four selected fish species (Mugil cephalus, Eleutheronema tetradactylum, Etroplus suratensis and Daysciaena albida) from Chilika lagoon were studied monthly to assess the concentration level and human health risk via consumption. The average and range of metal concentrations (μg g−1) in flesh of the fish species were found to be: Cu (4.15, 3.47–5.03), Cr (0.25, 0.04–0.63), Fe (19.72, 14.51–27.30), Hg (0.07, 0.05–0.08) and Zn (8.09, 4.41–11.36). The metal concentrations measured in the edible muscles of all fish species were found lower as compared to the contents in liver and gill. Analysis of variance revealed a significant difference in trace metal accumulation among the organs (p 0.05), with the exception of Zn accumulation (p < 0.05). The estimated daily intake (EDI) of the trace metals through the consumption of fish as a dietary component varied widely from 0.48 to 21.33% with respect to the corresponding permissible tolerable daily intake (PTDI). The target hazard quotients (THQs) calculated considering these EDIs for individual metals indicated that the Cr and Cu metals dominantly contributed (avg. THQ = 0.198) to represent the hazard index (HI) than other metals (avg. THQ = 0.029). The average HI determined for all the species was <1 (0.484, ranged 0.255–0.605), indicating that these fish species of Chilika are safe for human consumption.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: International Journal of Environmental Science and Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.