測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 50651 |
綱取ダム貯水池 |
Ｌ‐１３ |
A |
測定結果
| 採取年月日 |
1992.05.11 |
1992.05.11 |
1992.06.01 |
1992.06.01 |
1992.07.06 |
1992.07.06 |
1992.08.03 |
1992.08.03 |
1992.09.07 |
1992.09.07 |
1992.10.07 |
1992.10.07 |
| 採取時刻 |
1000 |
1025 |
1000 |
1020 |
1025 |
1045 |
1025 |
1045 |
1010 |
1030 |
0950 |
1010 |
| 天候 |
2 |
2 |
2 |
2 |
2 |
2 |
4 |
4 |
4 |
4 |
2 |
2 |
| 気温 (℃) |
9.5 |
9.5 |
22.2 |
22.2 |
27.1 |
27.1 |
24.5 |
24.5 |
20.8 |
20.8 |
14.8 |
14.8 |
| 水温 (℃) |
11.9 |
5.3 |
15.4 |
7.7 |
22.4 |
7.2 |
22.4 |
7.1 |
20.9 |
8.4 |
15.1 |
7.1 |
| 採取水深 (m) |
0.0 |
10.0 |
0.0 |
10.0 |
0.0 |
8.0 |
0.0 |
8.0 |
0.0 |
8.0 |
0.0 |
8.0 |
| 全水深 (m) |
11.0 |
11.0 |
12.0 |
12.0 |
8.0 |
8.0 |
8.0 |
8.0 |
8.0 |
8.0 |
9.0 |
9.0 |
| 透明度 (m) |
3.000 |
|
2.000 |
|
2.000 |
|
2.000 |
|
2.000 |
|
4.000 |
|
| pH |
7.4 |
6.9 |
6.9 |
6.7 |
8.6 |
6.8 |
7.1 |
6.6 |
7.6 |
6.8 |
7.4 |
6.7 |
| DO (mg/l) |
11 |
7.5 |
12 |
10 |
10 |
3.7 |
9.6 |
3.5 |
9.5 |
1.7 |
10 |
0.9 |
| BOD (mg/l) |
0.9 |
0.5 |
2.8 |
0.5 |
3.4 |
0.9 |
1.2 |
0.7 |
1.8 |
1 |
1.7 |
1.1 |
| COD (mg/l) |
1.9 |
1.6 |
2.4 |
1.1 |
5.4 |
1.6 |
2.5 |
1.8 |
2.5 |
2.4 |
1.8 |
2.6 |
| SS (mg/l) |
1 |
2 |
1 |
1 |
6 |
3 |
2 |
4 |
3 |
5 |
1 |
10 |
| 大腸菌群数 (MPN/100ml) |
2.20E+01 |
3.30E+01 |
3.30E+01 |
2.30E+01 |
2.00E+00 |
5.00E+00 |
2.30E+03 |
2.30E+03 |
1.30E+02 |
7.90E+01 |
2.30E+02 |
7.90E+01 |
| 全窒素 (mg/l) |
0.47 |
0.44 |
0.4 |
0.42 |
0.57 |
0.48 |
0.49 |
0.56 |
0.36 |
0.54 |
0.45 |
0.69 |
| 全燐 (mg/l) |
0.006 |
0.005 |
0.024 |
0.01 |
0.025 |
0.01 |
0.017 |
0.022 |
0.008 |
0.018 |
0.013 |
0.032 |