| 重金属 Heavy metals | 最小值 Min. | 最大值 Max. | 平均值 Mean | 比例(%) Proportion | ||||
| 轻微 | 中度 | 强度 | 很强 | 极强 | ||||
| Cd | 0.01 | 293 | 17.1 | 92.2 | 2.23 | 0.56 | 2.23 | 2.78 |
| Cr | 0.00 | 5.99 | 0.33 | 100 | 0 | 0 | 0 | 0 |
| Cu | 0.00 | 18.9 | 1.61 | 100 | 0 | 0 | 0 | 0 |
| Pb | 0.00 | 8.08 | 0.88 | 100 | 0 | 0 | 0 | 0 |
| Zn | 0.00 | 13.2 | 0.47 | 100 | 0 | 0 | 0 | 0 |
| Ni | 0.00 | 4.33 | 0.67 | 100 | 0 | 0 | 0 | 0 |
| RI | 0.01 | 297 | 21.2 | 92.2 | 2.78 | 0.56 | 4.44 | 0 |