測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 01353 |
小川川 |
日向ダム直下 |
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 (℃) |
7.9 |
11.9 |
13 |
15.1 |
17.2 |
20.3 |
14.8 |
10.3 |
5.7 |
5.1 |
3.5 |
5.2 |
| 採取水深 (m) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| pH |
7.8 |
8.0 |
7.8 |
7.8 |
7.8 |
7.9 |
7.8 |
7.7 |
7.7 |
7.5 |
7.7 |
7.8 |
| DO (mg/l) |
10 |
10 |
10 |
9.2 |
9.1 |
8.3 |
9.5 |
10 |
12 |
12 |
12 |
12 |
| BOD (mg/l) |
1.7 |
1.9 |
1.1 |
1.2 |
1.7 |
1.4 |
1.3 |
1.1 |
1.1 |
1.1 |
1.8 |
3.4 |
| COD (mg/l) |
1.2 |
1.8 |
1.5 |
1.3 |
2.1 |
1.6 |
1.9 |
1.6 |
1.6 |
1.8 |
1 |
1.7 |
| SS (mg/l) |
1 |
2 |
2 |
< 1 |
2 |
5 |
1 |
2 |
1 |
1 |
1 |
2 |
| 大腸菌群数 (MPN/100ml) |
79 |
330 |
4900 |
7900 |
4900 |
7900 |
3300 |
3300 |
130 |
350 |
79 |
13 |
| 全窒素 (mg/l) |
0.12 |
0.25 |
0.17 |
0.20 |
0.15 |
0.16 |
0.29 |
0.21 |
0.23 |
0.26 |
0.14 |
0.11 |
| 全燐 (mg/l) |
0.01 |
0.020 |
0.020 |
0.018 |
0.018 |
0.018 |
0.015 |
0.016 |
0.016 |
0.017 |
0.014 |
0.015 |
| クロロフィル-a (ug/l) |
5 |
9 |
5 |
3 |
12 |
4 |
1 |
< 1 |
1 |
< 1 |
4 |
13 |