| 調査年 | 採取月 | 気温 | 水温 | ｐＨ | ＤＯ | ＢＯＤ | ＣＯＤ | ＳＳ | 全窒素 | 全燐 |
| （℃） | （℃） | (mg/l) | (mg/l) | (mg/l) | (mg/l) | (mg/l) | (mg/l) | |||
| 91 | 夏 | 27.6 | 26.1 | 9.10 | 10.80 | 10.1 | 11.6 | 43.3 | 2.73 | 0.593 |
| 91 | 秋 | 23.0 | 22.3 | 9.30 | 12.53 | 9.8 | 9.9 | 27.0 | 3.40 | 0.340 |
| 91 | 冬 | 12.7 | 10.3 | 8.50 | 10.67 | 6.1 | 8.5 | 38.7 | 3.43 | 0.217 |
| 92 | 春 | 18.5 | 15.1 | 9.13 | 11.20 | 10.3 | 11.3 | 25.3 | 2.73 | 0.417 |
| 92 | 夏 | 26.7 | 26.0 | 9.80 | 15.67 | 12.2 | 14.0 | 42.7 | 3.80 | 0.467 |
| 92 | 秋 | 21.3 | 18.9 | 9.47 | 12.67 | 8.6 | 15.1 | 44.0 | 3.47 | 0.410 |
| 92 | 冬 | 12.7 | 8.7 | 9.20 | 14.00 | 10.8 | 10.7 | 27.3 | 3.77 | 0.193 |
| 93 | 春 | 19.3 | 15.0 | 9.43 | 15.33 | 8.5 | 13.7 | 25.3 | 2.93 | 0.267 |
| 93 | 夏 | 26.1 | 25.2 | 8.43 | 9.70 | 7.7 | 11.3 | 29.3 | 2.67 | 0.357 |
| 93 | 秋 | 25.2 | 22.3 | 9.37 | 12.67 | 8.7 | 10.8 | 28.7 | 3.20 | 0.243 |
| 93 | 冬 | 12.8 | 10.2 | 8.73 | 14.00 | 5.6 | 9.0 | 16.3 | 3.67 | 0.123 |
| 94 | 春 | 19.3 | 16.9 | 8.80 | 9.63 | 8.1 | 9.5 | 27.0 | 2.37 | 0.243 |
| 94 | 夏 | 28.8 | 27.5 | 9.17 | 12.23 | 11.3 | 15.7 | 59.3 | 2.93 | 0.503 |
| 94 | 秋 | 25.1 | 24.0 | 9.57 | 11.00 | 12.3 | 16.3 | 36.0 | 2.23 | 0.297 |
| 94 | 冬 | 10.2 | 8.5 | 9.17 | 13.67 | 11.0 | 12.0 | 33.3 | 4.33 | 0.207 |
| 95 | 春 | 17.2 | 15.3 | 9.47 | 14.00 | 6.7 | 14.7 | 39.0 | 3.40 | 0.243 |
| 95 | 夏 | 25.0 | 24.3 | 8.83 | 9.40 | 7.3 | 12.0 | 46.7 | 2.67 | 0.283 |
| 95 | 秋 | 23.5 | 20.5 | 8.90 | 11.43 | 7.7 | 12.0 | 38.7 | 2.27 | 0.297 |
| 95 | 冬 | 5.3 | 5.8 | 9.50 | 46.33 | 8.3 | 14.7 | 34.7 | 4.13 | 0.257 |
春： ３，４，５月
夏： ６，７，８月
秋： ９，１０，１１月
冬： １２，１，２月
