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 |
1989.04.24 |
1989.05.10 |
1989.06.07 |
1989.07.05 |
1989.08.01 |
1989.08.01 |
1989.08.01 |
1989.08.02 |
1989.09.18 |
1989.10.04 |
1989.11.08 |
1989.12.06 |
1990.01.10 |
1990.02.01 |
1990.03.01 |
| 採取時刻 |
1320 |
1350 |
1330 |
1350 |
0945 |
1545 |
2145 |
0345 |
1355 |
1325 |
1355 |
1405 |
1350 |
1330 |
1400 |
| 天候 |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
晴れ |
曇り |
雨 |
曇り |
曇り |
晴れ |
曇り |
晴れ |
晴れ |
| 気温 (℃) |
8 |
17 |
22.2 |
25.8 |
28.2 |
30 |
23.6 |
22.6 |
21.5 |
12.7 |
12.9 |
5.5 |
4 |
-0.5 |
9.8 |
| 水温 (℃) |
7.8 |
15.5 |
16.8 |
20.5 |
21.7 |
23.3 |
23 |
21.8 |
18 |
12.9 |
11 |
6.6 |
2.5 |
1.5 |
5 |
| 流量 (m3/s) |
72.0 |
20.4 |
13.6 |
15.0 |
3.4 |
|
|
|
78.4 |
26.7 |
4.9 |
62.9 |
8.2 |
7.7 |
70.5 |
| pH |
7 |
7.3 |
7.2 |
7.4 |
7.2 |
7.3 |
7.2 |
7.2 |
7.2 |
7.3 |
7.3 |
7.3 |
7.1 |
7.2 |
7 |
| DO (mg/l) |
11.6 |
10.8 |
9.6 |
9.4 |
7.5 |
7.5 |
6.5 |
5.7 |
8.5 |
10.3 |
10.5 |
12.3 |
13.4 |
14.3 |
13.3 |
| BOD (mg/l) |
1 |
1.7 |
1.4 |
1.4 |
1.8 |
1.7 |
2.2 |
2.4 |
1.9 |
1.1 |
1.7 |
1.6 |
1.3 |
1.2 |
0.9 |
| COD (mg/l) |
2.2 |
2.8 |
2.6 |
3 |
2.5 |
|
|
|
3.6 |
1.5 |
2.5 |
1.5 |
1.5 |
1.1 |
2 |
| SS (mg/l) |
7 |
8 |
5 |
7 |
4 |
4 |
4 |
5 |
24 |
3 |
5 |
3 |
4 |
1 |
6 |
| 大腸菌群数 (MPN/100ml) |
2.4E+03 |
1.3E+03 |
2.8E+03 |
1.1E+04 |
3.3E+04 |
3.3E+04 |
7.9E+03 |
1.1E+04 |
1.7E+05 |
7.9E+03 |
1.3E+04 |
2.3E+02 |
2.4E+03 |
1.3E+02 |
2.3E+02 |
| 全窒素 (mg/l) |
|
0.91 |
|
0.93 |
|
|
|
|
1.19 |
|
0.92 |
|
0.66 |
|
0.63 |
| 全燐 (mg/l) |
|
0.059 |
|
0.035 |
|
|
|
|
0.125 |
|
0.02 |
|
0.017 |
|
0.012 |