Table 3.
THQ and Hazard Index for different heavy metals from consumption of two fish species obtained from Ogun and Eleyele River.
Site | Specie | Organ | Target Hazard Quotient (THQ) |
|||||||
---|---|---|---|---|---|---|---|---|---|---|
As | Cd | Co | Cr | Mn | Ni | Pb | HI | |||
Ogun River | Clarias gariepinus | Liver | 0.232 | 0.246 | 0.008 | – | – | 0.0004 | 0.0015 | 0.246 |
Muscle | 0.177 | 0.188 | 0.008 | 0.00005 | – | 0.0006 | 0.0034 | 0.188 | ||
Gills | 2.907 | 2.925 | 0.013 | 0.0002 | – | 0.0009 | 0.003 | 2.925 | ||
Sarotherodon melanotheron | Liver | 1.15 | 0.006 | 0.018 | 0.0002 | 0.00001 | 0.0009 | 0.0038 | 1.179 | |
Gills | 0.958 | 0.005 | 0.016 | 0.0006 | 0.000007 | 0.0008 | 0.0041 | 0.984 | ||
Muscle | 0.643 | 0.005 | – | 0.0004 | 0.00002 | 0.0007 | 0.0022 | 0.651 | ||
Eleyele River | Clarias gariepinus | Gills | 0.346 | 0.005 | 0.01 | 0.0006 | 0.00002 | 0.0007 | 0.0035 | 0.366 |
Liver | – | 0.004 | 0.009 | 0.0002 | 0.00002 | 0.0007 | 0.003 | 0.017 | ||
Muscle | 0.682 | 0.003 | 0.018 | 0.0006 | – | 0.0003 | 0.0019 | 0.705 | ||
Sarotherodon melanotheron | Gills | 0.101 | 0.004 | 0.014 | 0.00006 | – | 0.00008 | 0.0005 | 0.121 | |
Liver | – | – | 0.0004 | – | – | 0.0007 | 0.0011 | 0.003 | ||
Muscle | – | 0.001 | 0.001 | 0.00008 | – | 0.0003 | 0.0034 | 0.006 |