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 |
1991.05.30 |
1991.05.30 |
1991.06.06 |
1991.06.06 |
1991.07.18 |
1991.07.18 |
1991.08.07 |
1991.08.07 |
1991.09.18 |
1991.09.18 |
1991.10.30 |
1991.10.30 |
| 採取時刻 |
1053 |
1053 |
1100 |
1100 |
1045 |
1045 |
1040 |
1040 |
1053 |
1053 |
1105 |
1105 |
| 天候 |
曇り |
曇り |
晴れ |
晴れ |
曇り |
曇り |
雨 |
雨 |
曇り |
曇り |
曇り |
曇り |
| 気温 (℃) |
16.2 |
16.2 |
21.0 |
21.0 |
19.0 |
19.0 |
22.5 |
22.5 |
20.2 |
20.2 |
13.0 |
13.0 |
| 水温 (℃) |
14.3 |
13.1 |
17.2 |
14.2 |
16.8 |
14.8 |
20.0 |
15.7 |
19.0 |
17.2 |
10.9 |
10.8 |
| 採取水深 (m) |
0.0 |
7.0 |
0.0 |
7.0 |
0.0 |
9.0 |
0.0 |
9.0 |
0.0 |
9.0 |
0.0 |
10.0 |
| 全水深 (m) |
8.0 |
8.0 |
8.0 |
8.0 |
10.0 |
10.0 |
10.0 |
10.0 |
1.0 |
10.0 |
11.0 |
11.0 |
| 透明度 (m) |
5.000 |
5.000 |
7.000 |
7.000 |
4.000 |
4.000 |
4.000 |
4.000 |
3.000 |
3.000 |
4.000 |
4.000 |
| pH |
7 |
7 |
7 |
7 |
7.2 |
7.1 |
7.2 |
6.8 |
7.3 |
7 |
7 |
7.1 |
| DO (mg/l) |
9.5 |
9.3 |
9.3 |
9.7 |
9.4 |
9.2 |
8.4 |
7.9 |
7.1 |
6.9 |
9.7 |
9.3 |
| COD (mg/l) |
1.2 |
1.4 |
1.3 |
1.4 |
1.8 |
1.8 |
2.2 |
2.2 |
2.4 |
2.2 |
1.7 |
2.5 |
| SS (mg/l) |
1 |
< 1 |
< 1 |
2 |
2 |
< 1 |
1 |
1 |
< 1 |
1 |
1 |
2 |
| 大腸菌群数 (MPN/100ml) |
0. E+00 |
|
0. E+00 |
|
4.0E+00 |
|
0. E+00 |
|
1.0E+00 |
|
2.0E+00 |
|
| 全窒素 (mg/l) |
0.17 |
|
0.15 |
|
0.12 |
|
0.06 |
|
0.11 |
|
0.17 |
|
| 全燐 (mg/l) |
< 0.003 |
|
< 0.003 |
|
0.01 |
|
< 0.003 |
|
0.005 |
|
0.005 |
|