Table 2. The arsenic concentration in samples of the environment in the poison accident of Hunan Province in 2018.
| Material | Arsenic concentration (mg/L) | Reference range (mg/L) |
| Domestic water | 9.62 | 0.05 |
| Water exuded from public well | 0.34 | 0.05 |
| Fish meat | 0.11 | − |
| Private well water | − | 0.05 |
| Water from the ditch | < 0.05 | 0.05 |