測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 50551 |
豊沢ダム貯水池 |
Ｌ‐６ |
A |
測定結果
| 採取年月日 |
1992.05.12 |
1992.05.12 |
1992.05.12 |
1992.06.02 |
1992.06.02 |
1992.06.02 |
1992.07.21 |
1992.07.21 |
1992.07.21 |
1992.08.25 |
1992.08.25 |
1992.08.25 |
1992.09.08 |
1992.09.08 |
1992.09.08 |
1992.10.13 |
1992.10.13 |
1992.10.13 |
| 採取時刻 |
1025 |
1030 |
1035 |
1040 |
1045 |
1050 |
0945 |
0950 |
0955 |
1038 |
1040 |
1045 |
1030 |
1035 |
1040 |
1050 |
1055 |
1055 |
| 天候 |
2 |
2 |
2 |
2 |
2 |
2 |
4 |
4 |
4 |
2 |
2 |
2 |
4 |
4 |
4 |
4 |
4 |
4 |
| 気温 (℃) |
16.2 |
16.2 |
16.2 |
22.5 |
22.5 |
22.5 |
25.0 |
25.0 |
25.0 |
29.0 |
29.0 |
29.0 |
17.0 |
17.0 |
17.0 |
16.0 |
16.0 |
16.0 |
| 水温 (℃) |
8.8 |
8.9 |
9.8 |
9.0 |
10.0 |
16.0 |
9.0 |
11.0 |
22.0 |
10.0 |
10.0 |
25.0 |
18.0 |
13.0 |
9.0 |
12.0 |
13.5 |
12.8 |
| 採取水深 (m) |
21.0 |
13.5 |
0.0 |
21.0 |
12.0 |
0.0 |
17.0 |
10.0 |
0.0 |
14.0 |
8.0 |
0.0 |
0.0 |
8.5 |
15.0 |
10.0 |
0.0 |
5.5 |
| 全水深 (m) |
|
|
27.0 |
|
|
24.0 |
|
|
20.0 |
|
|
17.0 |
17.0 |
|
|
|
11.0 |
|
| pH |
7.2 |
7.2 |
7.2 |
6.8 |
7 |
7.4 |
6.6 |
6.7 |
7 |
6.4 |
6.6 |
8.8 |
9.2 |
6.9 |
6.5 |
7 |
8 |
7 |
| DO (mg/l) |
5.5 |
5.5 |
5.2 |
9.6 |
9.9 |
10 |
|
|
|
5.9 |
7.1 |
8.5 |
10 |
8.2 |
6.3 |
9.5 |
11 |
10 |
| COD (mg/l) |
2.7 |
7.6 |
1.5 |
4 |
3.8 |
4.5 |
3 |
1.6 |
3.7 |
1.9 |
1.6 |
3.5 |
3.5 |
2.6 |
1.8 |
2.5 |
4.2 |
3.2 |
| SS (mg/l) |
4 |
3 |
2 |
6 |
1 |
2 |
2 |
2 |
7 |
3 |
1 |
3 |
11 |
5 |
21 |
16 |
6 |
5 |
| 大腸菌群数 (MPN/100ml) |
|
|
2.00E+00 |
|
|
1.30E+01 |
|
|
7.90E+01 |
|
|
3.30E+01 |
2.20E+02 |
|
|
|
1.10E+01 |
|
| 全窒素 (mg/l) |
|
|
0.22 |
|
|
0.32 |
|
|
0.32 |
|
|
0.3 |
0.36 |
|
|
|
0.47 |
|
| 全燐 (mg/l) |
|
|
0.008 |
|
|
0.009 |
|
|
0.022 |
|
|
0.012 |
0.023 |
|
|
|
0.023 |
|