Table 2 Water Quality Monitoring Data of Beijing-Hangzhou Grand Canal (Suzhou Section)
Site | Coordinates | Date | COD | TN | TP | PH | NH3-N | Electrical conductivity | DO | Nitrate nitrogen |
|---|---|---|---|---|---|---|---|---|---|---|
A1 | 120°38ʹ54″E, 31°0ʹ14″N | 2021.11.13 | 22 | 1.33 | 0.137 | 6.9 | 0.607 | 420 | 6.6 | 0.775 |
A2 | 120°39ʹ49″E, 31°4ʹ28″N | 2021.11.13 | 27 | 1.07 | 0.137 | 7.0 | 0.666 | 373 | 8.8 | 0.485 |
B1 | 120°39ʹ21″E, 31°8ʹ56″N | 2021.11.13 | 27 | 1.39 | 0.175 | 6.9 | 0.660 | 430 | 8.3 | 1.04 |
B2 | 120°39ʹ43″E, 31°8ʹ37″N | 2021.11.13 | 26 | 1.57 | 0.185 | 6.9 | 0.610 | 411 | 8.1 | 1.19 |
B3 | 120°39ʹ43″E, 31°8ʹ25″N | 2021.11.13 | 37 | 0.386 | 0.168 | 7.1 | 0.186 | 303 | 9.8 | 0.134 |
B4 | 120°39ʹ43″E, 31°8ʹ24″N | 2021.11.13 | 25 | 1.66 | 0.213 | 6.9 | 0.581 | 467 | 8.3 | 1.27 |
C1 | 120°38ʹ31″E, 31°15ʹ42″N | 2021.11.13 | 36 | 1.92 | 0.226 | 6.9 | 1.20 | 401 | 8.5 | 0.609 |
C2 | 120°38ʹ59″E, 31°15ʹ25″N | 2021.11.13 | 29 | 1.889 | 0.24 | 6.9 | 0.905 | 442 | 8.7 | 0.837 |
D1 | 120°33ʹ11″E, 31°19ʹ49″N | 2021.12.10 | 51 | 2.62 | 0.308 | 7.0 | 0.790 | 621 | 2.43 | 5.6 |
D2 | 120°34ʹ25″E, 31°20ʹ6″N | 2021.12.10 | 27 | 2.49 | 0.104 | 7.0 | 0.551 | 599 | 2.04 | 4.4 |
E1 | 120°34ʹ0″E, 31°18ʹ47″N | 2021.12.10 | 59 | 2.85 | 0.111 | 7.0 | 0.941 | 687 | 2.31 | 6.5 |
E2 | 120°33ʹ44″E, 31°18ʹ42″N | 2021.12.10 | 52 | 2.10 | 0.209 | 7.0 | 0.483 | 584 | 2.10 | 5.8 |
E3 | 120°33ʹ51″E, 31°18ʹ32″N | 2021.12.10 | 71 | 2.12 | 0.281 | 7.0 | 0.468 | 582 | 2.02 | 5.9 |