| Item | pH | Cd (mg∙kg−1) | As (mg∙kg−1) |
| Soil risk screening values | 6.5 - 7.5 | 0.3 | 30 |
| Soil risk control values | 6.5 - 7.5 | 3.0 | 120 |
| Background of soil quality in Yunnan Province |
| 0.22 | 18.40 |