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 |
1990.05.22 |
1990.05.22 |
1990.05.22 |
1990.06.19 |
1990.06.19 |
1990.06.19 |
1990.07.24 |
1990.07.24 |
1990.07.24 |
1990.08.21 |
1990.08.21 |
1990.08.21 |
1990.09.11 |
1990.09.11 |
1990.09.11 |
1990.10.16 |
1990.10.16 |
1990.10.16 |
| 採取時刻 |
1100 |
1100 |
1100 |
1040 |
1040 |
1040 |
1050 |
1050 |
1050 |
1020 |
1020 |
1020 |
1020 |
1020 |
1020 |
1005 |
1005 |
1005 |
| 天候 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
一時雨 |
一時雨 |
一時雨 |
晴れ |
晴れ |
晴れ |
| 気温 (℃) |
20 |
20 |
20 |
18.2 |
18.2 |
18.2 |
29 |
29 |
29 |
25 |
25 |
25 |
19.9 |
19.9 |
19.9 |
15 |
15 |
15 |
| 水温 (℃) |
16.1 |
9 |
10.3 |
19.6 |
9.5 |
9.9 |
23.1 |
11.6 |
10.7 |
23.9 |
11.8 |
9.5 |
20.6 |
9.8 |
10.4 |
15.1 |
14.1 |
12.4 |
| 採取水深 (m) |
0 |
12 |
22 |
0 |
10 |
18 |
0 |
12 |
20 |
0 |
10 |
18 |
0 |
6 |
11 |
0 |
5 |
8 |
| 全水深 (m) |
25.0 |
25.0 |
25.0 |
20.0 |
20.0 |
20.0 |
23.0 |
23.0 |
23.0 |
20.0 |
20.0 |
20.0 |
13.0 |
13.0 |
13.0 |
9.0 |
9.0 |
9.0 |
| pH |
7.5 |
7.2 |
7.1 |
7.5 |
7.2 |
7.1 |
8.1 |
7 |
6.9 |
7.6 |
6.9 |
6.8 |
8.2 |
6.8 |
6.6 |
7.8 |
7.4 |
7.1 |
| DO (mg/l) |
9.9 |
9.8 |
9.6 |
9.6 |
10 |
10 |
9.9 |
8.5 |
7.9 |
7.9 |
8.4 |
7.9 |
10 |
8.2 |
7.4 |
10 |
9.7 |
8.7 |
| COD (mg/l) |
2.1 |
1.9 |
2 |
2.7 |
1.8 |
2.4 |
4.3 |
2.3 |
1.9 |
2.8 |
1.3 |
2 |
3.6 |
1.2 |
1.4 |
2.6 |
2.1 |
1.9 |
| SS (mg/l) |
1 |
1 |
2 |
2 |
2 |
14 |
4 |
1 |
1 |
4 |
1 |
12 |
4 |
1 |
10 |
4 |
18 |
33 |
| 大腸菌群数 (MPN/100ml) |
1.4E+01 |
|
|
4.9E+01 |
|
|
7.9E+02 |
|
|
2.8E+02 |
|
|
2.2E+02 |
|
|
1.7E+02 |
|
|
| 全窒素 (mg/l) |
0.12 |
|
|
0.07 |
|
|
0.24 |
|
|
0.53 |
|
|
0.25 |
|
|
0.29 |
|
|
| 全燐 (mg/l) |
0.04 |
|
|
0.011 |
|
|
0.016 |
|
|
0.023 |
|
|
0.022 |
|
|
0.017 |
|
|