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 |
1991.04.26 |
1991.05.08 |
1991.06.05 |
1991.07.30 |
1991.08.14 |
1991.08.14 |
1991.08.14 |
1991.08.15 |
1991.09.18 |
1991.10.02 |
1991.11.06 |
1991.12.04 |
1992.01.08 |
1992.02.05 |
1992.03.04 |
| 採取時刻 |
1345 |
1400 |
1350 |
1350 |
0920 |
1520 |
2120 |
0320 |
1353 |
1330 |
1350 |
1330 |
1355 |
1325 |
1400 |
| 天候 |
晴れ |
曇り |
晴れ |
曇り |
曇り |
晴れ |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
| 気温 (℃) |
22.9 |
22.0 |
21.6 |
22.6 |
21.1 |
26.5 |
20.5 |
19.4 |
19.2 |
18.6 |
10.3 |
8.3 |
6.6 |
5.5 |
4.7 |
| 水温 (℃) |
10.7 |
15.5 |
18.3 |
16.5 |
18.0 |
21.0 |
19.0 |
17.7 |
17.1 |
16.0 |
8.3 |
7.5 |
4.8 |
2.2 |
3.4 |
| 流量 (m3/s) |
51.51 |
|
19.24 |
77.58 |
25.24 |
25.24 |
24.44 |
19.94 |
25.24 |
22.14 |
7.35 |
31.16 |
7.35 |
6.11 |
27.70 |
| pH |
7.1 |
7 |
7.4 |
7.1 |
7.2 |
7.2 |
7.2 |
7.2 |
7.3 |
7.4 |
7.3 |
7.3 |
7.1 |
7.1 |
7.2 |
| DO (mg/l) |
11 |
10 |
10 |
9 |
9.4 |
8.7 |
8.1 |
8.6 |
9 |
10 |
12 |
13 |
13 |
13 |
13 |
| BOD (mg/l) |
0.5 |
1.9 |
1.2 |
1 |
0.9 |
1.1 |
0.9 |
0.8 |
0.9 |
0.7 |
1.1 |
1.6 |
1.4 |
2.4 |
1 |
| COD (mg/l) |
2.1 |
2.9 |
2.1 |
1.9 |
1.2 |
|
|
|
2.1 |
1.7 |
1.4 |
1.6 |
1.5 |
1.2 |
3.7 |
| SS (mg/l) |
8 |
13 |
3 |
16 |
3 |
3 |
3 |
4 |
10 |
6 |
1 |
4 |
4 |
2 |
88 |
| 大腸菌群数 (MPN/100ml) |
7.9E+02 |
7.9E+03 |
9.4E+03 |
7.9E+03 |
4.9E+04 |
1.1E+04 |
1.3E+05 |
2.8E+05 |
1.3E+04 |
1.4E+03 |
2.3E+02 |
1.4E+03 |
1.4E+03 |
8.0E+01 |
1.3E+02 |
| 全窒素 (mg/l) |
|
1.4 |
|
0.62 |
|
|
|
|
0.83 |
|
0.63 |
|
0.98 |
|
0.82 |
| 全燐 (mg/l) |
|
0.068 |
|
0.021 |
|
|
|
|
0.021 |
|
0.009 |
|
0.021 |
|
0.064 |