Foods | Cd(II) | Cr(III) | Pb(II) |
| ------------------------------ mg·kg−1 ---------------------------- | ||
Rice | 0.05 ? 0.34 | 0.011 - 0.6 | 0.02 |
Corn | 0.06 - 0.1 | 0.25 | 0.02 |
Wheat (grains) | 0.003 - 0.35 | 0.01 - 0.2 | 0.037 - 0.16 |
Wheat (flour) | 0.003 - 0.023 | - | - |
Bean | 0.29 - 0.34 | 0.05 | 0.02 |
Lettuce | 0.12 - 0.66 | 0.09 - 0.11 | 0.7 - 3.6 |
Tomato | 0.03 - 0.23 | 0.07 | 1.0 - 3.0 |
[maximum]* | 3 - 8 | 75 - 100 | 100 - 400 |