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 |
1994.05.17 |
1994.05.17 |
1994.05.17 |
1994.06.21 |
1994.06.21 |
1994.06.21 |
1994.07.12 |
1994.07.12 |
1994.07.12 |
1994.08.23 |
1994.08.23 |
1994.08.23 |
1994.09.20 |
1994.09.20 |
1994.09.20 |
1994.10.18 |
1994.10.18 |
1994.10.18 |
| 採取時刻 |
1045 |
1050 |
1055 |
1010 |
1015 |
1020 |
1010 |
1013 |
1015 |
1025 |
1025 |
1030 |
1020 |
1025 |
1030 |
1020 |
1025 |
1030 |
| 天候 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
| 気温 (℃) |
11.5 |
11.5 |
11.5 |
14.5 |
14.5 |
14.5 |
22.0 |
22.0 |
22.0 |
27.0 |
27.0 |
27.0 |
24.0 |
24.0 |
24.0 |
16.0 |
16.0 |
16.0 |
| 水温 (℃) |
10.6 |
8.3 |
7.6 |
7.9 |
8.8 |
16.4 |
19.4 |
8.9 |
9.5 |
22.2 |
11.9 |
16.6 |
25.5 |
11.0 |
18.1 |
13.6 |
12.5 |
13.0 |
| 採取水深 (m) |
0.0 |
15.0 |
27.0 |
19.0 |
10.5 |
0.0 |
0.0 |
20.7 |
11.5 |
0.0 |
4.5 |
2.5 |
0.0 |
9.0 |
5.0 |
0.0 |
8.0 |
4.5 |
| 全水深 (m) |
30.00 |
30.00 |
30.00 |
21.00 |
21.00 |
21.00 |
23.00 |
23.00 |
23.00 |
5.00 |
5.00 |
5.00 |
10.00 |
10.00 |
10.00 |
9.00 |
9.00 |
9.00 |
| pH |
7.4 |
7.1 |
7.0 |
6.7 |
6.9 |
7.3 |
8.5 |
6.7 |
7.0 |
7.9 |
6.8 |
7.4 |
8.1 |
6.5 |
7.2 |
6.8 |
6.9 |
6.8 |
| DO (mg/l) |
11.0 |
11.0 |
11.0 |
10.0 |
10.0 |
10.0 |
9.9 |
9.6 |
9.7 |
9.3 |
5.9 |
7.4 |
9.8 |
4.6 |
9.1 |
9.6 |
10.0 |
9.8 |
| COD (mg/l) |
1.9 |
1.8 |
1.5 |
1.7 |
1.4 |
2.6 |
3.3 |
1.3 |
2.0 |
3.3 |
5.2 |
3.2 |
3.0 |
2.6 |
3.1 |
2.6 |
2.6 |
2.1 |
| SS (mg/l) |
4 |
3 |
1 |
< 1 |
< 1 |
1 |
3 |
1 |
1 |
9 |
140 |
25 |
3 |
33 |
4 |
56 |
170 |
71 |
| 大腸菌群数 (MPN/100ml) |
2.2E+01 |
|
|
|
|
1.4E+02 |
1.7E+02 |
|
|
4.9E+01 |
|
|
2.2E+02 |
|
|
2.4E+03 |
|
|
| 全窒素 (mg/l) |
0.07 |
|
|
|
|
0.07 |
0.08 |
|
|
0.11 |
|
|
0.18 |
|
|
0.24 |
|
|
| 全燐 (mg/l) |
0.006 |
|
|
|
|
0.011 |
0.025 |
|
|
0.022 |
|
|
0.030 |
|
|
0.054 |
|
|
| 透視度 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
6 |
5 |
5 |