Estimating the concentrations of some heavy metals in some types of fish available in local markets in Misurata city- Libya

Abstract

This study determined the concentration of heavy
metals (Zinc, Cobalt, Chromium, Cadmium) in muscle tissues of
three kinds of fish (Sardinella, Little tunny, Bogue) which have
been considered as the most consumed fish. The samples were
collected from public supermarket in Misurata City- Libya.
Atomic absorption spectrometry technique (AAS) was used to
determine the concentration of these metals and the collected
results shows that the concentration of Cobalt in all examined
samples were more higher than the WHO permissible limit. On
the other hand, the concentrations of Chromium and Cadmium in
all analyzed samples were within the limit of WHO standard
guideline.

The concentration of Zinc in all examined samples were less than
the reported values except in Sardinella where the level of Zinc is
higher than the WHO recommended safe value.