Department of Geography

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Browsing Department of Geography by Subject "Concentrations, heavy metals, edible fish species, health hazards, permissible levels"

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    Concentrations of Heavy Metals (Zn, Cu, Pb and Cd) in the Selected Edible Fish Species along the Coast of Dar es Salaam, Tanzania
    (2008) Fundisha, Evarist
    The concentrations of heavy metals in edible fish species were determined to assess their health hazards to fish consumers. Mean concentrations of Zinc (gg-1 dry wt) in liver, kidney, gills and muscles were 121.78, 72.87, 61.66 and 10.30 and 14.13, 8.36, 3.40 and 1.98 for Copper respectively. Cadmium and Lead were below the detection limit (0.01 ㎍ g-1) in muscles but for liver, kidney and gills, the mean values were 0.14, 0.10 and 0.01 gg-1 for Cadmium and 0.03, 0.04 and 0.06 gg-1 for Lead respectively. This indicates that the concentrations of metals in the fish were within permissible levels.