Mercury concentration in the canned tuna fish analyzed
in this study showed that the levels were below what was reported
by Agorku and Voegborlo (2005) and Emami Khansari et al. (2005).
The concentrations of mercury in muscle samples of fish from the
Persian Gulf were 0.049–0.402 lg g1 (Raissy & Ansari, 2014). The
concentration of mercury reported by FDA (2000) ranged from
0.082 to 0.160 lg g1 wet weight. These results are comparable
with what was reported in this study. The variation of mercury concentration in the different brands of canned fish analyzed could
be attributed to the fact that some fish are older than others. The
low levels could be that the waters in which the fish are obtained
have not yet been polluted significantly with mercury. Only few
data are available for comparison in Ghana (Agorku & Voegborlo,
2005)