|
|
| |
| Articles
by
A.F. Ayeisanmi |
Total Records (
1 ) for
A.F. Ayeisanmi |
|
 |
| |
|
| |
D.N. Olowoyo
,
O.O. Ajayi
,
I.A. Amoo
and
A.F. Ayeisanmi
|
| |
The concentrations of Pb, Ni, Fe and Cd were determined using
Atomic Absorption Spectrophotometer-Varian Spectral AA220 in catfish, blue crab
and crayfish from Warri coastal water of Delta state. Of all the heavy metals
examined, the line charts presented in Fig. 2, 3 and 4 indicate that Cd and
Pb have the highest concentration while Fe and Ni have the least concentration
in the three fauna considered for the experiment at both dry and wet seasons
of 2008. The mean concentration values for catfish are: 0.002-2.52 mg/kg, 0.22-3.50
mg/kg, 0.002-1.48 mg/kg and 0.009-18.13 mg/kg; blue crab: 0.82-3.40 mg/kg, 0.35-2.50
mg/kg, 0.06-1.61 mg/kg and 1.62-12.88 mg/kg and crayfish: 0.22-8.00 mg/kg, 0.01-2.25
mg/kg, 0.004-0.55 mg/kg and 0.038-18.13 mg/kg for heavy metals of Pb, Ni, Fe
and Cd respectively. The concentrations of the metals determined varied from
one location to another and from one specie to another. Hence, Egbokodo location
has the highest Cd content in catfish while Jeddo and Ughoton locations have
highest Cd content in crayfish and blue crab respectively. Lastly, the order
of increasing in concentration of the metals is Fe<Ni<Pb<Cd. |
|
|
|
|
| |
|
