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 |
2008.04.16 |
2008.05.14 |
2008.06.17 |
2008.07.15 |
2008.08.25 |
2008.09.16 |
2008.10.08 |
2008.11.12 |
2008.12.16 |
2009.01.14 |
2009.02.05 |
2009.03.02 |
| 採取時刻 |
0944 |
0948 |
0940 |
0946 |
0955 |
0942 |
1710 |
0950 |
0953 |
1010 |
0851 |
1006 |
| 気温 (℃) |
21.0 |
13.4 |
21.2 |
27.0 |
22.2 |
22.8 |
16.3 |
11.7 |
9.8 |
5.2 |
3.5 |
4.5 |
| 水温 (℃) |
10.4 |
12.2 |
16.2 |
20.4 |
17.6 |
18.1 |
16.4 |
9.1 |
8.2 |
4.3 |
2.8 |
3.9 |
| 採取水深 (m) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| 全水深 (m) |
14 |
16 |
19 |
20 |
40 |
23 |
15 |
26 |
20 |
16 |
15 |
15 |
| pH |
7.5 |
7.9 |
7.6 |
7.6 |
7.4 |
7.8 |
7.3 |
7.5 |
7.6 |
7.6 |
7.4 |
7.5 |
| DO (mg/l) |
11 |
10 |
9.9 |
9.2 |
9.6 |
9.2 |
9.3 |
10 |
11 |
12 |
13 |
12 |
| BOD (mg/l) |
1.0 |
1.4 |
1.1 |
1.0 |
1.1 |
2.2 |
< 0.5 |
0.8 |
1.2 |
1.4 |
0.9 |
0.6 |
| SS (mg/l) |
4 |
8 |
3 |
2 |
3 |
< 1 |
1 |
2 |
4 |
2 |
1 |
1 |
| 大腸菌群数 (MPN/100ml) |
4.9E+01 |
3.3E+02 |
4.9E+02 |
7.9E+02 |
1.7E+03 |
2.2E+03 |
7.9E+02 |
4.9E+02 |
1.7E+02 |
2.3E+01 |
1.3E+01 |
2.3E+01 |
| 全窒素 (mg/l) |
0.47 |
0.46 |
0.38 |
0.34 |
0.58 |
0.50 |
0.38 |
0.38 |
0.31 |
0.23 |
0.34 |
0.26 |
| 全燐 (mg/l) |
0.017 |
0.021 |
0.013 |
0.016 |
0.019 |
0.024 |
0.015 |
0.010 |
0.011 |
0.009 |
0.009 |
0.010 |
| 全マンガン (mg/l) |
0.18 |
0.16 |
0.14 |
0.08 |
0.11 |
0.03 |
0.06 |
0.06 |
0.04 |
0.02 |
0.08 |
0.11 |