測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 01351 |
小川川 |
日向ダム流入前 |
A |
測定結果
| 採取年月日 |
2006.04.19 |
2006.05.10 |
2006.06.07 |
2006.07.05 |
2006.08.02 |
2006.09.06 |
2006.10.04 |
2006.11.08 |
2006.12.06 |
2007.01.10 |
2007.02.06 |
2007.03.01 |
| 採取時刻 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
| 水温 (℃) |
8 |
11.3 |
11 |
12.6 |
14.4 |
15.4 |
12.9 |
9.1 |
2.7 |
4.7 |
4.2 |
4.3 |
| 採取水深 (m) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| pH |
7.7 |
7.7 |
7.7 |
7.8 |
7.8 |
7.8 |
7.7 |
7.7 |
7.7 |
7.5 |
7.6 |
7.8 |
| DO (mg/l) |
10 |
10 |
10 |
9.7 |
9.5 |
9.1 |
9.6 |
10 |
12 |
12 |
11 |
12 |
| BOD (mg/l) |
1.4 |
< 0.5 |
< 0.5 |
1.6 |
0.8 |
0.8 |
0.6 |
1.0 |
1.1 |
0.9 |
1.7 |
1.5 |
| COD (mg/l) |
1.1 |
0.9 |
1 |
1.1 |
1.0 |
0.9 |
1.6 |
1.0 |
1.1 |
1.6 |
0.7 |
0.8 |
| SS (mg/l) |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
2 |
1 |
< 1 |
< 1 |
1 |
< 1 |
< 1 |
| 大腸菌群数 (MPN/100ml) |
33 |
330 |
330 |
330 |
1300 |
1300 |
1300 |
330 |
79 |
49 |
130 |
33 |
| 全窒素 (mg/l) |
0.14 |
0.24 |
0.16 |
0.22 |
0.12 |
0.18 |
0.28 |
0.16 |
0.16 |
0.20 |
0.10 |
0.08 |
| 全燐 (mg/l) |
0.013 |
0.020 |
0.025 |
0.021 |
0.019 |
0.017 |
0.018 |
0.016 |
0.014 |
0.016 |
0.013 |
0.012 |
| クロロフィル-a (ug/l) |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
2 |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |