| Typical simulation sites | Daily average concentration, mg/L | Qualified days, d | Peak concentration, mg/L |
| Tugou bridge | 1.46 | 249 | 2.65 |
| Houweigou bridge | 2.04 | 200 | 3.44 |
| NCR 1# | 2.58 | 97 | 3.75 |
| NCR 2# | 3.07 | 11 | 5.65 |