Determination of Some Metals in Selected Species of Imported Frozen Fishes Sold in Kano Fish Market


Authors : Alfred A. J; Mohammed, M. I

Volume/Issue : Volume 7 - 2022, Issue 4 - April

Google Scholar : https://bit.ly/3IIfn9N

Scribd : https://bit.ly/3khiMSU

DOI : https://doi.org/10.5281/zenodo.6486834

This study aims to evaluate the levels of seven metals (viz:Aluminium, Cadmium, Chromium, Iron, Mercury, Lead and Zinc) in the gills, livers and muscles of seven different imported fish species (viz:Trachurus, Clupea, Scomber, Undulatus, Gadus, Argentine and Oreochromis) sold at the popular Fish market of Kano Line, Kano State Nigeria and to conduct a risk assessment for human consumers. Atomic Absorption Spectrometer (Perkin Elmer PinAAcle 900H) was used to determine the presence of the metals. A 100% metal recovery range for all assayed metals was detected, with the highest concentration recorded in Iron(Fe) (13.33±0.0022mg/kg) and the lowest concentration was found in Cadmium(Cd) (0.001±0.0009mg/kg). The general order of metal bioaccumulation measured in the fish tissues were in the order; Fe > Zn > Hg > Cr > Pb > Al > Cd in the gills, and Fe >Zn >Al > Hg> Cr >Pd >Cd in the livers, and Zn > Fe > Hg > Pb > Al > Cr > Cd in the fish flesh (muscle). The majority of all the metals analyzed in all the tissues of the fish samples were lower than maximum levels by FAO/WHO guidelines except for Mercury (Hg) in the gills and flesh of Oreochromis, and Aluminium (Al) in the livers of all samples and in the gills of Oreochromis and Trachurus. The estimation of the Target Hazard Risk and Hazard Index (noncarcinogenic risk) indicated no adverse health effects from the consumption of the fishes , although, the elevated levels in Oreochromis muscle needs to be closely monitored. The Target Cancer Risk (carcinogenic risk) was also observed to be of low significance, but not ignorable, especially in the Chromium levels of clupea harengus and Oreochromis. The estimated maximum safe consumption (MSC) levels for the metals showed that Mercury (Hg) may cause significant health effects in humans if Oreochromis, Gadus and undulates are consumed in a large amount.

Keywords : Health risk assessment, Target Hazard Quotient, Maximum safe consumption, Metals, Fishes.

CALL FOR PAPERS


Paper Submission Last Date
31 - July - 2022

Paper Review Notification
In 1-2 Days

Paper Publishing
In 2-3 Days

Never miss an update from Papermashup

Get notified about the latest tutorials and downloads.

Subscribe by Email

Get alerts directly into your inbox after each post and stay updated.
Subscribe
OR

Subscribe by RSS

Add our RSS to your feedreader to get regular updates from us.
Subscribe