測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 50501 |
豊沢ダム貯水池 |
Ｌ‐７（ダムサイト） |
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 |
1000 |
1005 |
1010 |
1020 |
1025 |
1030 |
0930 |
0935 |
0940 |
1015 |
1020 |
1025 |
1015 |
1018 |
1020 |
1035 |
1040 |
1045 |
| 天候 |
2 |
2 |
2 |
2 |
2 |
2 |
4 |
4 |
4 |
2 |
2 |
2 |
4 |
4 |
4 |
4 |
4 |
4 |
| 気温 (℃) |
15.4 |
15.4 |
15.4 |
22.5 |
22.5 |
22.5 |
25.5 |
25.5 |
25.5 |
28.0 |
28.0 |
28.0 |
17.0 |
17.0 |
17.0 |
16.0 |
16.0 |
16.0 |
| 水温 (℃) |
7.9 |
8.5 |
8.9 |
9.0 |
9.0 |
16.0 |
22.5 |
9.0 |
10.0 |
9.0 |
10.0 |
24.0 |
16.0 |
9.0 |
9.0 |
13.0 |
12.0 |
10.0 |
| 採取水深 (m) |
33.0 |
19.0 |
0.0 |
30.0 |
17.0 |
0.0 |
0.0 |
15.0 |
25.0 |
22.0 |
13.0 |
0.0 |
0.0 |
25.0 |
14.0 |
0.0 |
11.0 |
20.0 |
| 全水深 (m) |
|
|
38.0 |
|
|
34.0 |
30.0 |
|
|
|
|
26.0 |
28.0 |
|
|
23.0 |
|
|
| pH |
7.2 |
7.3 |
7.3 |
7 |
7 |
7.6 |
8.1 |
6.6 |
6.6 |
6.4 |
6.5 |
8.6 |
7.2 |
6.5 |
6.6 |
7.7 |
7 |
6.8 |
| DO (mg/l) |
5.6 |
5.6 |
5.6 |
9.6 |
9.7 |
10 |
|
|
|
5 |
6.1 |
8.3 |
9.1 |
4.2 |
7.3 |
11 |
9.1 |
6 |
| COD (mg/l) |
3.9 |
2.5 |
1.4 |
5.1 |
4.9 |
4.9 |
11 |
13 |
10 |
2.6 |
2.1 |
2.9 |
2.8 |
2.1 |
1.3 |
3.4 |
2 |
3.5 |
| SS (mg/l) |
26 |
16 |
2 |
24 |
4 |
2 |
6 |
1 |
11 |
5 |
1 |
4 |
5 |
3 |
2 |
5 |
34 |
33 |
| 大腸菌群数 (MPN/100ml) |
|
|
1.10E+01 |
|
|
1.10E+01 |
1.30E+02 |
|
|
|
|
7.90E+01 |
1.60E+03 |
|
|
2.70E+01 |
|
|
| 全窒素 (mg/l) |
|
|
0.45 |
|
|
0.29 |
0.38 |
|
|
|
|
0.28 |
0.39 |
|
|
0.3 |
|
|
| 全燐 (mg/l) |
|
|
0.008 |
|
|
0.008 |
0.018 |
|
|
|
|
0.013 |
0.011 |
|
|
0.015 |
|
|