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 |
1994.05.09 |
1994.05.09 |
1994.06.06 |
1994.06.06 |
1994.07.04 |
1994.07.04 |
1994.08.01 |
1994.08.01 |
1994.09.05 |
1994.09.05 |
1994.10.03 |
1994.10.03 |
| 採取時刻 |
1025 |
1035 |
1005 |
1030 |
1000 |
1015 |
1035 |
1050 |
1005 |
1020 |
1010 |
1030 |
| 天候 |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
| 気温 (℃) |
16.7 |
16.7 |
21.1 |
21.1 |
22.5 |
22.5 |
31.0 |
31.0 |
27.5 |
27.5 |
20.8 |
20.8 |
| 水温 (℃) |
12.5 |
8.0 |
18.3 |
6.0 |
20.7 |
6.3 |
27.4 |
7.7 |
24.8 |
7.5 |
18.7 |
13.0 |
| 採取水深 (m) |
0.0 |
6.0 |
0.0 |
8.0 |
0.0 |
8.0 |
0.0 |
6.0 |
0.0 |
6.3 |
0.0 |
10.0 |
| 全水深 (m) |
8.00 |
8.00 |
9.80 |
9.80 |
10.00 |
10.00 |
7.00 |
7.00 |
7.30 |
7.30 |
10.00 |
10.00 |
| 透明度 (m) |
2.80 |
|
3.80 |
|
4.20 |
|
2.10 |
|
2.50 |
|
1.00 |
|
| pH |
6.7 |
6.6 |
7.4 |
6.8 |
6.8 |
6.3 |
7.3 |
5.9 |
6.6 |
6.0 |
7.0 |
6.9 |
| DO (mg/l) |
11.0 |
10.0 |
10.0 |
7.4 |
9.5 |
4.1 |
7.9 |
2.9 |
10.0 |
2.9 |
10.0 |
10.0 |
| BOD (mg/l) |
2.0 |
1.2 |
1.5 |
< 0.5 |
1.4 |
3.0 |
1.4 |
1.7 |
2.4 |
2.0 |
2.4 |
1.0 |
| COD (mg/l) |
1.7 |
1.6 |
1.9 |
1.4 |
2.5 |
1.8 |
2.4 |
2.2 |
2.2 |
2.6 |
4.2 |
3.1 |
| SS (mg/l) |
1 |
1 |
1 |
1 |
3 |
3 |
< 1 |
1 |
1 |
6 |
3 |
2 |
| 大腸菌群数 (MPN/100ml) |
1.7E+01 |
3.3E+01 |
2.7E+01 |
1.3E+01 |
3.3E+03 |
2.3E+03 |
1.3E+02 |
4.9E+01 |
7.9E+02 |
7.9E+01 |
2.3E+03 |
1.4E+02 |
| 全窒素 (mg/l) |
0.38 |
0.42 |
0.54 |
0.55 |
0.72 |
0.49 |
0.41 |
0.56 |
0.42 |
0.58 |
0.61 |
0.55 |
| 全燐 (mg/l) |
0.011 |
0.021 |
0.011 |
0.013 |
< 0.003 |
< 0.003 |
0.011 |
0.021 |
0.014 |
0.021 |
0.030 |
0.022 |