測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 50202 |
岩洞ダム貯水池 |
Ｌ‐２（コオク） |
A |
測定結果
| 採取年月日 |
1994.05.25 |
1994.05.25 |
1994.05.25 |
1994.06.15 |
1994.06.15 |
1994.06.15 |
1994.07.13 |
1994.07.13 |
1994.07.13 |
1994.08.10 |
1994.08.10 |
1994.08.10 |
1994.09.14 |
1994.09.14 |
1994.10.12 |
1994.10.12 |
| 採取時刻 |
1100 |
1110 |
1115 |
1050 |
1100 |
1110 |
1045 |
1055 |
1105 |
1046 |
1051 |
1055 |
1100 |
1110 |
1100 |
1110 |
| 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 |
雨 |
雨 |
曇り |
曇り |
| 気温 (℃) |
23.0 |
23.0 |
23.0 |
21.5 |
21.5 |
21.5 |
27.0 |
27.0 |
27.0 |
31.0 |
31.0 |
31.0 |
20.0 |
20.0 |
19.0 |
19.0 |
| 水温 (℃) |
14.0 |
12.0 |
11.0 |
18.0 |
17.7 |
17.0 |
22.0 |
20.0 |
21.0 |
27.8 |
26.3 |
27.1 |
20.0 |
19.8 |
15.5 |
15.0 |
| 採取水深 (m) |
0.0 |
7.0 |
13.0 |
0.0 |
6.0 |
10.0 |
0.0 |
9.0 |
5.0 |
0.0 |
5.0 |
3.0 |
0.0 |
4.0 |
0.0 |
7.0 |
| 全水深 (m) |
15.00 |
15.00 |
15.00 |
12.00 |
12.00 |
12.00 |
10.00 |
10.00 |
10.00 |
6.00 |
6.00 |
6.00 |
6.00 |
6.00 |
8.00 |
8.00 |
| 透明度 (m) |
12.00 |
12.00 |
12.00 |
7.00 |
7.00 |
7.00 |
8.50 |
8.50 |
8.50 |
5.00 |
5.00 |
5.00 |
2.50 |
2.50 |
3.50 |
3.50 |
| pH |
7.4 |
7.4 |
7.2 |
7.4 |
7.5 |
7.3 |
7.3 |
7.5 |
7.5 |
7.5 |
7.7 |
7.8 |
7.3 |
7.4 |
7.1 |
6.9 |
| DO (mg/l) |
9.9 |
10.0 |
9.9 |
9.0 |
9.0 |
9.0 |
8.6 |
8.6 |
8.8 |
7.8 |
7.8 |
8.0 |
8.6 |
8.6 |
9.7 |
8.7 |
| COD (mg/l) |
1.4 |
1.5 |
1.7 |
1.0 |
1.2 |
0.7 |
1.9 |
2.0 |
2.0 |
2.1 |
2.2 |
2.2 |
3.0 |
2.8 |
2.2 |
2.3 |
| SS (mg/l) |
2 |
2 |
2 |
1 |
2 |
2 |
9 |
2 |
1 |
1 |
2 |
2 |
3 |
5 |
1 |
2 |
| 大腸菌群数 (MPN/100ml) |
4.5E+00 |
|
|
2.2E+02 |
|
|
1.3E+01 |
|
|
2.4E+02 |
|
|
2.7E+01 |
|
7.9E+01 |
|
| 全窒素 (mg/l) |
0.12 |
|
|
0.10 |
|
|
< 0.05 |
|
|
0.08 |
|
|
0.07 |
|
0.07 |
|
| 全燐 (mg/l) |
0.007 |
|
|
0.007 |
|
|
0.010 |
|
|
0.009 |
|
|
0.020 |
|
0.013 |
|
| 透視度 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |