| Hg | As | Cd | Pb |
A1 | 0.023 | 0.844 | 0.117 | 0.031 |
A2 | 0.018 | 0.829 | 0.091 | 0.022 |
A3 | 0.014 | 0.609 | 0.065 | 0.013 |
A4 | 0.022 | 0.915 | 0.113 | 0.035 |
B1 | 0.017 | 0.676 | 0.039 | 0.018 |
B2 | 0.017 | 0.801 | 0.07 | 0.033 |
B3 | 0.024 | 1.24 | 0.067 | 0.053 |
B4 | 0.003 | 0.95 | 0.091 | 0.039 |
CK | 0.013 | 0.152 | 0.440 | 0.042 |