Table 4. Water quality survey results in Yangjaecheon (1)
Site | Date | Velocity (m/s) | Temp. (°C) | pH | DO (mg/L) | EC (μS/cm) | Turb. (NTU) | BOD (mg/L) | TOC (mg/L) | SS (mg/L) |
Juam bridge | 03.23 | 1.7 | 10.1 | 7.4 | 12.1 | 603 | 3.2 | 1.2 | 2.2 | 2.8 |
07.15 | 2.7 | 20.4 | 7.3 | 8.8 | 277 | 12.7 | 0.1 | 2.1 | 4.0 |
09.24 | 2.0 | 19.6 | 7.5 | 9.9 | 680 | - | 0.2 | 1.6 | 6.8 |
11.25 | 1.8 | 9.6 | 7.4 | 10.7 | 452 | 1.3 | 1.1 | 2.0 | 0.6 |
Mean | 2.1 | 14.9 | 7.4 | 10.4 | 503 | 5.7 | 0.7 | 2.0 | 3.6 |
Bodo bridge | 03.23 | 1.5 | 10.9 | 7.6 | 10.8 | 459 | 5.2 | 0.9 | 2.4 | 3.6 |
07.15 | 2.7 | 20.3 | 7.5 | 8.9 | 245 | 13.0 | 0.3 | 1.9 | 7.8 |
09.24 | 1.8 | 19.6 | 7.7 | 9.8 | 410 | - | 0.2 | 1.6 | 6.0 |
11.25 | 1.5 | 8.3 | 7.7 | 10.9 | 314 | 1.6 | 1.1 | 1.8 | 0.8 |
Mean | 1.8 | 14.8 | 7.6 | 10.1 | 357 | 6.6 | 0.6 | 1.9 | 4.6 |
Daechi bridge | 03.23 | 1.3 | 13.2 | 8.0 | 11.2 | 412 | 6.5 | 0.9 | 2.1 | 1.6 |
07.15 | 2.6 | 21.3 | 7.6 | 9.2 | 252 | 11.5 | 0.8 | 2.0 | 4.8 |
09.24 | 1.6 | 21.1 | 8.0 | 11.4 | 425 | - | 0.3 | 1.7 | 5.2 |
11.25 | 1.6 | 8.2 | 8.3 | 12.1 | 471 | 8.6 | 0.4 | 2.2 | 2.6 |
Mean | 1.7 | 15.9 | 8.0 | 11.0 | 390 | 8.9 | 0.6 | 2.0 | 3.6 |