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 |
1991.05.14 |
1991.05.14 |
1991.05.14 |
1991.06.11 |
1991.06.11 |
1991.06.11 |
1991.07.29 |
1991.07.29 |
1991.07.29 |
1991.08.26 |
1991.08.26 |
1991.08.26 |
1991.09.10 |
1991.09.10 |
1991.09.10 |
1991.10.22 |
1991.10.22 |
1991.10.22 |
| 採取時刻 |
1045 |
1045 |
1045 |
1050 |
1050 |
1050 |
1055 |
1055 |
1055 |
1110 |
1110 |
1110 |
1055 |
1055 |
1055 |
1105 |
1105 |
1105 |
| 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 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
| 気温 (℃) |
20.0 |
20.0 |
20.0 |
24.0 |
24.0 |
24.0 |
28.0 |
28.0 |
28.0 |
23.0 |
23.0 |
23.0 |
26.0 |
26.0 |
26.0 |
11.0 |
11.0 |
11.0 |
| 水温 (℃) |
13.3 |
9.4 |
8.8 |
19.2 |
12.6 |
10.1 |
21.5 |
13.4 |
11.1 |
23.0 |
12.7 |
11.7 |
21.4 |
11.6 |
10.3 |
12.5 |
11.8 |
11.2 |
| 採取水深 (m) |
0.0 |
13.0 |
22.0 |
0.0 |
11.0 |
20.0 |
0.0 |
11.5 |
21.0 |
0.0 |
8.0 |
12.0 |
0.0 |
7.5 |
13.0 |
0.0 |
7.0 |
11.0 |
| 全水深 (m) |
25.0 |
25.0 |
25.0 |
22.0 |
22.0 |
22.0 |
23.0 |
23.0 |
23.0 |
15.0 |
15.0 |
15.0 |
15.0 |
15.0 |
15.0 |
14.0 |
14.0 |
14.0 |
| pH |
7.1 |
7.1 |
6.9 |
7.3 |
7.1 |
6.9 |
7.7 |
6.9 |
6.6 |
7.5 |
6.8 |
6.9 |
7.3 |
6.7 |
6.5 |
7.3 |
7.1 |
7.1 |
| DO (mg/l) |
9.3 |
10 |
10 |
8.8 |
9.1 |
9.2 |
10 |
9.6 |
7.9 |
7.8 |
7.3 |
7.1 |
8.4 |
7.1 |
5.8 |
10.9 |
10.5 |
10 |
| COD (mg/l) |
1.8 |
1.7 |
2.5 |
2.5 |
2.4 |
4.7 |
1.3 |
1.3 |
1.8 |
3 |
2 |
1.9 |
3.5 |
2.3 |
2.9 |
2.9 |
2.7 |
2.2 |
| SS (mg/l) |
2 |
1 |
3 |
1 |
1 |
28 |
< 1 |
1 |
15 |
3 |
2 |
3 |
3 |
2 |
11 |
3 |
3 |
9 |
| 大腸菌群数 (MPN/100ml) |
4.0E+00 |
|
|
1.4E+01 |
|
|
4.9E+01 |
|
|
3.3E+01 |
|
|
7.9E+01 |
|
|
4.9E+01 |
|
|
| 全窒素 (mg/l) |
0.19 |
|
|
0.13 |
|
|
0.16 |
|
|
0.17 |
|
|
0.25 |
|
|
0.34 |
|
|
| 全燐 (mg/l) |
0.008 |
|
|
0.009 |
|
|
0.01 |
|
|
0.017 |
|
|
0.018 |
|
|
0.019 |
|
|