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 |
1989.05.23 |
1989.05.23 |
1989.05.23 |
1989.06.20 |
1989.06.20 |
1989.06.20 |
1989.07.18 |
1989.07.18 |
1989.07.18 |
1989.08.08 |
1989.08.08 |
1989.08.08 |
1989.09.26 |
1989.09.26 |
1989.09.26 |
1989.10.17 |
1989.10.17 |
1989.10.17 |
| 採取時刻 |
0950 |
0950 |
0950 |
1105 |
1105 |
1105 |
1030 |
1030 |
1030 |
1040 |
1040 |
1040 |
1020 |
1020 |
1020 |
1050 |
1050 |
1050 |
| 天候 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
雨 |
雨 |
雨 |
| 気温 (℃) |
18 |
18 |
18 |
11 |
11 |
11 |
18.5 |
18.5 |
18.5 |
26 |
26 |
26 |
15 |
15 |
15 |
10 |
10 |
10 |
| 水温 (℃) |
14 |
12 |
11 |
9.3 |
9.7 |
15.4 |
20 |
11.9 |
10.8 |
23 |
12 |
11 |
16 |
15 |
14.5 |
12.5 |
12 |
12 |
| 採取水深 (m) |
0 |
10 |
20 |
0 |
7.5 |
13.5 |
0 |
6 |
12 |
0 |
4 |
7 |
0 |
7 |
12 |
0 |
4 |
7 |
| 全水深 (m) |
21.0 |
21.0 |
21.0 |
15.0 |
15.0 |
15.0 |
13.0 |
13.0 |
13.0 |
8.0 |
8.0 |
8.0 |
14.0 |
14.0 |
14.0 |
8.0 |
8.0 |
8.0 |
| pH |
7.1 |
6.8 |
6.6 |
7.2 |
6.8 |
6.6 |
7.6 |
6.8 |
6.4 |
7.4 |
6.6 |
6.5 |
7.6 |
7.2 |
7.1 |
7.2 |
7.2 |
7.2 |
| DO (mg/l) |
10 |
10 |
9.9 |
10 |
9.7 |
8.8 |
8.8 |
8 |
6.3 |
8 |
5.8 |
6.2 |
9.9 |
9.3 |
9 |
9.5 |
9.5 |
9.4 |
| COD (mg/l) |
2.4 |
2.2 |
2.1 |
2.4 |
1.9 |
1.7 |
2.1 |
1.3 |
0.9 |
4.4 |
2.2 |
2.3 |
3.5 |
2.9 |
3.3 |
2.7 |
2.8 |
2.9 |
| SS (mg/l) |
3 |
3 |
2 |
4 |
3 |
7 |
2 |
3 |
3 |
10 |
10 |
7 |
3 |
3 |
14 |
5 |
4 |
4 |
| 大腸菌群数 (MPN/100ml) |
3.3E+01 |
|
|
1.3E+03 |
|
|
1.7E+04 |
|
|
4.9E+03 |
|
|
1.4E+03 |
|
|
1.4E+02 |
|
|
| 全窒素 (mg/l) |
0.16 |
|
|
0.2 |
|
|
0.21 |
|
|
0.42 |
|
|
0.27 |
|
|
0.32 |
|
|
| 全燐 (mg/l) |
0.008 |
|
|
0.01 |
|
|
0.016 |
|
|
0.033 |
|
|
0.02 |
|
|
0.028 |
|
|