測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 04701 |
雫石川下流 |
東北本線鉄橋 |
A |
測定結果
| 採取年月日 |
1992.04.16 |
1992.05.06 |
1992.06.03 |
1992.07.29 |
1992.08.04 |
1992.08.04 |
1992.08.04 |
1992.08.05 |
1992.09.02 |
1992.10.07 |
1992.11.04 |
1992.12.02 |
1993.01.06 |
1993.02.03 |
1993.03.03 |
| 採取時刻 |
1325 |
1400 |
1325 |
1355 |
0935 |
1535 |
2135 |
0335 |
1355 |
1330 |
1400 |
1325 |
1355 |
1340 |
1315 |
| 天候 |
4 |
2 |
2 |
4 |
2 |
4 |
4 |
4 |
4 |
4 |
2 |
2 |
4 |
4 |
雨 |
| 気温 (℃) |
10.9 |
14.2 |
28.2 |
26.9 |
25.0 |
23.7 |
15.8 |
16.2 |
26.8 |
18.1 |
12.9 |
7.2 |
5.5 |
5.6 |
4.9 |
| 水温 (℃) |
6.5 |
12.2 |
16.5 |
19.0 |
18.0 |
20.0 |
19.2 |
17.0 |
21.0 |
14.2 |
10.2 |
6.5 |
3.0 |
2.0 |
4.0 |
| 流量 (m3/s) |
68.27 |
31.78 |
40.10 |
13.74 |
6.11 |
7.30 |
6.11 |
6.89 |
9.54 |
16.75 |
33.54 |
23.67 |
22.19 |
10.52 |
47.23 |
| pH |
7.1 |
7.4 |
7.3 |
7.3 |
7.1 |
7.2 |
7.2 |
7.1 |
7.4 |
7.4 |
7.5 |
7.5 |
7.4 |
7.6 |
7.2 |
| DO (mg/l) |
11 |
11 |
11 |
8.7 |
8.8 |
9.3 |
8 |
7.7 |
8.7 |
11 |
11 |
13 |
14 |
15 |
13 |
| BOD (mg/l) |
1.2 |
1.3 |
2.4 |
1.1 |
0.8 |
0.9 |
0.9 |
0.8 |
1.1 |
1.1 |
1 |
1 |
1.1 |
1.1 |
1 |
| COD (mg/l) |
2.2 |
1.8 |
2.4 |
2.2 |
1.8 |
|
|
|
2.1 |
1.9 |
1.9 |
1.5 |
1.4 |
1.4 |
2.1 |
| SS (mg/l) |
9 |
9 |
3 |
5 |
3 |
3 |
6 |
4 |
6 |
2 |
3 |
2 |
3 |
6 |
17 |
| 大腸菌群数 (MPN/100ml) |
4.90E+03 |
1.70E+03 |
1.30E+03 |
1.30E+05 |
3.30E+04 |
1.40E+04 |
1.10E+04 |
7.90E+04 |
7.90E+03 |
3.30E+03 |
1.30E+03 |
2.30E+02 |
1.70E+02 |
1.30E+03 |
7.90E+02 |
| 全窒素 (mg/l) |
|
0.65 |
|
1.02 |
|
|
|
|
0.83 |
|
0.47 |
|
0.52 |
|
0.86 |
| 全燐 (mg/l) |
|
0.031 |
|
0.03 |
|
|
|
|
0.021 |
|
0.015 |
|
0.011 |
|
0.023 |