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 |
1990.04.30 |
1990.05.09 |
1990.06.06 |
1990.07.30 |
1990.08.07 |
1990.08.07 |
1990.08.07 |
1990.08.08 |
1990.09.05 |
1990.10.03 |
1990.11.21 |
1990.12.05 |
1991.01.09 |
1991.02.06 |
1991.03.01 |
採取時刻 |
1340 |
1400 |
1325 |
1400 |
0945 |
1545 |
2145 |
0345 |
1355 |
1325 |
1355 |
1335 |
1405 |
1330 |
1355 |
天候 |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
雪 |
晴れ |
気温 (℃) |
13.8 |
19.5 |
23.1 |
31.5 |
28 |
27 |
26 |
22.2 |
23.8 |
21.5 |
7.3 |
11.4 |
4 |
0.6 |
1.2 |
水温 (℃) |
11 |
15 |
18.5 |
21.6 |
22 |
25.5 |
24 |
21.2 |
22.8 |
16 |
7.1 |
7.2 |
3.2 |
1.6 |
2.8 |
流量 (m3/s) |
70.0 |
48.3 |
13.2 |
34.2 |
12.1 |
15.6 |
18.2 |
7.2 |
21.7 |
|
|
62.4 |
23.0 |
7.2 |
55.1 |
pH |
7.1 |
7.3 |
7.3 |
7 |
7.3 |
7.3 |
7.1 |
7.1 |
7.4 |
7.3 |
7.2 |
7.1 |
7.1 |
7.2 |
7.3 |
DO (mg/l) |
11 |
10.6 |
9.9 |
8.7 |
7.8 |
7.9 |
6.3 |
6.8 |
8.6 |
8.9 |
11.3 |
11.9 |
12.9 |
12.3 |
13.2 |
BOD (mg/l) |
1.2 |
1.3 |
1.7 |
2.5 |
0.9 |
1.2 |
1.8 |
1.1 |
0.9 |
1 |
0.7 |
0.6 |
0.4 |
1.2 |
1.2 |
COD (mg/l) |
2.3 |
2.1 |
1.9 |
3.2 |
1.8 |
|
|
|
1.9 |
1.6 |
1.4 |
1.8 |
1.3 |
1.9 |
1.5 |
SS (mg/l) |
12 |
8 |
6 |
35 |
4 |
4 |
19 |
8 |
4 |
25 |
7 |
12 |
9 |
2 |
8 |
大腸菌群数 (MPN/100ml) |
4.9E+02 |
1.3E+03 |
3.3E+03 |
3.3E+04 |
2.8E+05 |
1.7E+05 |
1.1E+05 |
9.2E+05 |
3.9E+03 |
7.9E+04 |
7.9E+02 |
7.9E+02 |
1.7E+02 |
7.9E+02 |
1.3E+02 |
全窒素 (mg/l) |
0.62 |
|
|
1.14 |
|
|
|
|
0.72 |
|
0.55 |
|
0.7 |
|
0.05 |
全燐 (mg/l) |
0.039 |
|
|
0.043 |
|
|
|
|
0.015 |
|
0.015 |
|
0.023 |
|
0.017 |