測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 25901 |
中川目川 |
日向ダム流入前 |
|
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 (℃) |
8.5 |
11.9 |
11.3 |
13.2 |
15 |
16.4 |
13.5 |
8.8 |
5.3 |
4.7 |
4.1 |
3.9 |
| 採取水深 (m) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| pH |
7.8 |
7.8 |
7.8 |
7.8 |
8.0 |
7.9 |
7.9 |
7.8 |
7.8 |
7.6 |
7.7 |
7.8 |
| DO (mg/l) |
9.8 |
10 |
10 |
9.5 |
9.4 |
8.9 |
9.5 |
10 |
12 |
12 |
11 |
12 |
| BOD (mg/l) |
1.3 |
< 0.5 |
1.2 |
1.0 |
0.6 |
< 0.5 |
0.8 |
1.2 |
1.2 |
0.9 |
1.0 |
2.9 |
| COD (mg/l) |
1.1 |
1.4 |
1.3 |
1.4 |
1.9 |
1.4 |
2.3 |
1.0 |
1.1 |
1.8 |
1 |
0.9 |
| SS (mg/l) |
< 1 |
1 |
2 |
2 |
3 |
2 |
1 |
1 |
< 1 |
< 1 |
< 1 |
< 1 |
| 大腸菌群数 (MPN/100ml) |
33 |
490 |
1300 |
490 |
1400 |
1300 |
790 |
330 |
49 |
49 |
79 |
11 |
| 全窒素 (mg/l) |
0.12 |
0.25 |
0.18 |
0.25 |
0.15 |
0.21 |
0.27 |
0.13 |
0.16 |
0.15 |
0.09 |
0.07 |
| 全燐 (mg/l) |
0.010 |
0.014 |
0.021 |
0.021 |
0.017 |
0.016 |
0.016 |
0.012 |
0.011 |
0.013 |
0.009 |
0.008 |
| クロロフィル-a (ug/l) |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
1 |
< 1 |
< 1 |
< 1 |
1 |
< 1 |