Fe
Zn
Cu
Mn
Cd
Pb
min
0.72
0.32
0.36
0.28
0.01
0.012
max
1.98
0.66
0.68
0.84
0.09
0.22
mean
1.416
0.464
0.513
0.513
0.044
0.099
±SD
±0.08
±0.02
±0.02
±0.03
±0.005
±0.012
PL
1.0
1.0
1.0
0.05
0.01
0.05
*PL: permissible limits according to USEPA (1986)
Table 1:
Mean value of heavy metals concentration (mg/L) in water of Lake Manzala. According to the measurement of Saeed and Shaker (2008).
