Foods types | Cu | Zn | Pb | Cr | As | Cd |
Crops | 10 | 50 | 0.4 | 1.0 | 0.7 | 0.05 |
Vegetable | 10 | 20 | 0.2 | 0.5 | 0.5 | 0.05 |
Fruit | 10 | 5 | 0.2 | 0.5 | 0.5 | 0.03 |