Table 1 The heavy metal concentrations in mg/l in the GOS water samples.
Sample | Cd | Cr (VI) | Cu | Fe | Mn | Ni | Pb | Zn |
|---|---|---|---|---|---|---|---|---|
1 | 0.002 | 0.001 | 0.012 | 0.010 | 0.002 | 0.001 | 0.006 | 0.143 |
2 | 0.003 | 0.002 | 0.241 | 0.020 | 0.002 | 0.001 | 0.999 | 0.013 |
3 | 0.001 | 0.003 | 0.034 | 0.021 | 0.021 | 0.021 | 0.006 | 0.070 |
4 | 0.006 | 0.001 | 0.006 | 0.022 | 0.002 | 0.001 | 0.484 | 0.009 |
5 | 0.004 | 0.005 | 0.006 | 0.021 | 0.005 | 0.001 | 0.005 | 0.018 |
6 | 0.003 | 0.010 | 0.073 | 0.028 | 0.002 | 0.012 | 0.408 | 0.089 |
7 | 0.008 | 0.001 | 0.108 | 0.010 | 0.005 | 0.033 | 0.004 | 0.037 |
8 | 0.009 | 0.009 | 0.118 | 0.020 | 0.013 | 0.011 | 0.003 | 0.068 |
9 | 0.004 | 0.010 | 0.009 | 0.011 | 0.024 | 0.002 | 0.009 | 0.008 |
10 | 0.007 | 0.139 | 0.006 | 0.013 | 0.002 | 0.001 | 0.144 | 0.019 |
11 | 0.011 | 0.180 | 0.006 | 0.513 | 0.034 | 0.032 | 0.019 | 0.039 |
12 | 0.008 | 0.095 | 0.007 | 0.042 | 0.012 | 0.012 | 0.008 | 0.019 |
13 | 0.033 | 0.095 | 0.006 | 0.014 | 0.022 | 0.002 | 0.018 | 0.011 |
14 | 0.003 | 0.072 | 0.006 | 0.013 | 0.032 | 0.005 | 0.002 | 0.012 |
15 | 0.023 | 0.119 | 0.006 | 0.015 | 0.002 | 0.002 | 0.017 | 0.015 |
16 | 0.029 | 0.169 | 0.006 | 0.012 | 0.021 | 0.003 | 0.009 | 0.012 |
17 | 0.013 | 0.048 | 0.007 | 0.012 | 0.003 | 0.003 | 0.008 | 0.009 |
18 | 0.016 | 0.079 | 0.115 | 0.010 | 0.003 | 0.003 | 0.017 | 0.017 |
Min | 0.001 | 0.001 | 0.006 | 0.010 | 0.002 | 0.001 | 0.002 | 0.008 |
Max | 0.033 | 0.180 | 0.241 | 0.513 | 0.034 | 0.033 | 0.999 | 0.143 |
Mean | 0.011 | 0.061 | 0.051 | 0.066 | 0.012 | 0.009 | 0.158 | 0.038 |