測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 24503 |
綾里川 |
綾里川ダム直下 |
|
測定結果
| 採取年月日 |
2005.04.12 |
2005.05.18 |
2005.06.08 |
2005.07.13 |
2005.08.10 |
2005.09.14 |
2005.10.12 |
2005.11.02 |
2005.12.14 |
2006.01.18 |
2006.02.08 |
2006.03.02 |
| 採取時刻 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
| 採取水深 (m) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| pH |
7.5 |
7.6 |
7.6 |
7.8 |
8.8 |
7.6 |
7.7 |
7.4 |
7.5 |
7.5 |
7.6 |
7.4 |
| DO (mg/l) |
11 |
9.8 |
8.6 |
8.9 |
8.1 |
8.5 |
8 |
9.1 |
11 |
11 |
12 |
11 |
| BOD (mg/l) |
1.7 |
1.4 |
1.1 |
1 |
0.8 |
0.9 |
1.7 |
0.6 |
1.6 |
1.1 |
1.2 |
0.7 |
| COD (mg/l) |
2.6 |
2.1 |
1.6 |
2.5 |
2.1 |
2.2 |
3.1 |
2 |
2.3 |
2.3 |
2.5 |
2.2 |
| SS (mg/l) |
2 |
2 |
< 1 |
1 |
3 |
2 |
6 |
3 |
6 |
3 |
4 |
2 |
| 大腸菌群数 (MPN/100ml) |
130 |
240 |
330 |
2200 |
2400 |
2400 |
2400 |
240 |
130 |
17 |
11 |
13 |
| 全窒素 (mg/l) |
0.25 |
0.22 |
0.23 |
0.39 |
0.2 |
0.41 |
0.25 |
0.41 |
0.4 |
0.3 |
0.28 |
0.36 |
| 全燐 (mg/l) |
0.018 |
0.017 |
0.014 |
0.014 |
0.025 |
0.015 |
0.028 |
0.022 |
0.017 |
0.015 |
0.016 |
0.015 |
| クロロフィル-a (ug/l) |
10 |
1 |
< 1 |
1 |
1 |
7 |
12 |
< 1 |
22 |
14 |
5 |
1 |