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 |
2013.01.08 |
2013.02.04 |
2013.03.04 |
2012.04.24 |
2012.05.15 |
2012.06.12 |
2012.07.17 |
2012.08.07 |
2012.09.11 |
2012.10.16 |
2012.11.13 |
2012.12.11 |
| 採取時刻 |
1005 |
0913 |
1007 |
0955 |
0939 |
1025 |
1027 |
1015 |
0944 |
0946 |
1005 |
1020 |
| 気温 (℃) |
2 |
2.7 |
6 |
20.4 |
17.5 |
18.4 |
24.9 |
28.5 |
28 |
20.5 |
12.8 |
7.8 |
| 水温 (℃) |
4 |
2.7 |
3.8 |
11.2 |
11.6 |
15.8 |
19.3 |
23.6 |
25 |
18.3 |
12.7 |
8 |
| 採取水深 (m) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| pH |
7.5 |
7.5 |
7.4 |
7.4 |
7.4 |
7.5 |
7.4 |
7.5 |
7.5 |
7.5 |
7.5 |
7.6 |
| DO (mg/l) |
13 |
13 |
13 |
11 |
10 |
10 |
10 |
8.9 |
8.3 |
9.6 |
10 |
11 |
| BOD (mg/l) |
1.4 |
1.1 |
1.4 |
1.8 |
1.1 |
< 0.5 |
0.6 |
1.0 |
1.0 |
0.6 |
0.6 |
1.1 |
| SS (mg/l) |
< 1 |
< 1 |
1 |
5 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
3 |
| 大腸菌群数 (MPN/100ml) |
1.7E+02 |
3.3E+01 |
3.3E+01 |
3.5E+02 |
3.5E+02 |
7.9E+02 |
7.9E+02 |
2.4E+03 |
3.5E+03 |
3.3E+03 |
1.7E+03 |
4.9E+02 |
| 全窒素 (mg/l) |
0.47 |
0.39 |
0.33 |
0.53 |
0.50 |
0.38 |
0.39 |
0.35 |
0.19 |
0.48 |
0.67 |
0.51 |
| 全燐 (mg/l) |
0.015 |
0.010 |
0.011 |
0.028 |
0.019 |
0.011 |
0.012 |
0.009 |
0.010 |
0.012 |
0.016 |
0.012 |
| 全マンガン (mg/l) |
0.01 |
< 0.01 |
0.01 |
0.04 |
0.03 |
0.07 |
0.09 |
0.08 |
0.09 |
0.07 |
0.08 |
0.02 |