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 |
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 |
1020 |
1025 |
1030 |
0955 |
1000 |
1005 |
1010 |
1013 |
1015 |
1005 |
1010 |
1015 |
1000 |
1005 |
1010 |
1000 |
1005 |
1010 |
| 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 (℃) |
17.0 |
17.0 |
17.0 |
15.5 |
15.5 |
15.5 |
22.0 |
22.0 |
22.0 |
25.0 |
25.0 |
25.0 |
23.0 |
23.0 |
23.0 |
16.0 |
16.0 |
16.0 |
| 水温 (℃) |
11.4 |
7.8 |
7.5 |
7.8 |
7.8 |
16.5 |
19.4 |
8.9 |
9.5 |
22.2 |
11.9 |
16.6 |
21.7 |
9.4 |
16.4 |
13.4 |
11.9 |
12.6 |
| 採取水深 (m) |
0.0 |
18.5 |
33.0 |
30.0 |
16.5 |
0.0 |
0.0 |
29.7 |
16.5 |
0.0 |
12.0 |
7.0 |
0.0 |
14.4 |
8.0 |
0.0 |
17.0 |
9.5 |
| 全水深 (m) |
37.00 |
37.00 |
37.00 |
33.00 |
33.00 |
33.00 |
33.00 |
33.00 |
33.00 |
14.00 |
14.00 |
14.00 |
16.00 |
16.00 |
16.00 |
19.00 |
19.00 |
19.00 |
| pH |
7.4 |
7.0 |
6.9 |
6.8 |
6.9 |
7.4 |
8.5 |
6.8 |
6.8 |
7.9 |
6.7 |
7.0 |
8.5 |
6.6 |
7.0 |
6.8 |
6.8 |
6.9 |
| DO (mg/l) |
11.0 |
11.0 |
11.0 |
10.0 |
10.0 |
10.0 |
9.8 |
10.0 |
10.0 |
9.3 |
5.7 |
7.4 |
9.8 |
5.0 |
8.0 |
9.3 |
5.8 |
9.4 |
| COD (mg/l) |
1.8 |
1.8 |
1.9 |
1.8 |
1.6 |
2.8 |
3.6 |
1.7 |
1.6 |
2.6 |
1.8 |
2.3 |
3.3 |
2.5 |
3.5 |
3.1 |
4.3 |
3.7 |
| SS (mg/l) |
1 |
1 |
3 |
1 |
< 1 |
2 |
3 |
2 |
1 |
11 |
3 |
4 |
3 |
7 |
4 |
62 |
250 |
130 |
| 大腸菌群数 (MPN/100ml) |
7.0E+00 |
|
|
|
|
2.1E+01 |
7.9E+01 |
|
|
4.9E+01 |
|
|
1.7E+02 |
|
|
1.3E+03 |
|
|
| 全窒素 (mg/l) |
0.05 |
|
|
|
|
0.11 |
0.07 |
|
|
0.14 |
|
|
0.15 |
|
|
0.24 |
|
|
| 全燐 (mg/l) |
0.007 |
|
|
|
|
0.010 |
0.020 |
|
|
0.022 |
|
|
0.029 |
|
|
0.056 |
|
|
| 透視度 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
5 |
2.5 |
2.5 |