測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 01952 |
北上川（４） |
藤橋 |
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 |
1991.08.15 |
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 |
1200 |
1235 |
1345 |
1245 |
1200 |
1800 |
0000 |
0600 |
1235 |
1155 |
1215 |
1210 |
1250 |
1205 |
1250 |
| 天候 |
晴れ |
晴れ |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
| 気温 (℃) |
21.0 |
20.7 |
22.2 |
26.4 |
32.0 |
25.9 |
20.0 |
20.0 |
20.7 |
20.1 |
12.0 |
8.2 |
7.5 |
3.8 |
6.1 |
| 水温 (℃) |
9.5 |
15.0 |
18.1 |
19.0 |
21.2 |
21.6 |
20.6 |
20.2 |
17.0 |
16.0 |
9.0 |
6.0 |
4.5 |
2.8 |
3.7 |
| pH |
7.2 |
7.1 |
7.7 |
7.4 |
7.5 |
7.6 |
7.5 |
7.4 |
7.5 |
7.5 |
7.4 |
7.4 |
7.5 |
7.4 |
7.5 |
| DO (mg/l) |
11 |
10 |
10 |
8.9 |
10 |
9.3 |
8.6 |
8.5 |
9.2 |
9.2 |
12 |
12 |
13 |
14 |
14 |
| BOD (mg/l) |
< 0.5 |
1.1 |
1.5 |
1.2 |
1.3 |
1.1 |
1.2 |
1.1 |
1 |
1.4 |
1.2 |
1 |
2.2 |
1.5 |
1.4 |
| COD (mg/l) |
2.1 |
3.1 |
3.1 |
1.9 |
2 |
|
|
|
2.2 |
3.3 |
2 |
1.8 |
3.9 |
2.6 |
2.3 |
| SS (mg/l) |
14 |
10 |
5 |
10 |
4 |
4 |
3 |
2 |
9 |
17 |
1 |
4 |
23 |
5 |
11 |
| 大腸菌群数 (MPN/100ml) |
1.7E+03 |
2.8E+03 |
7.9E+03 |
7.9E+03 |
3.3E+03 |
3.3E+03 |
3.3E+03 |
4.9E+03 |
4.9E+03 |
1.4E+04 |
4.9E+02 |
7.9E+03 |
7.9E+03 |
7.0E+02 |
1.4E+03 |
| 全窒素 (mg/l) |
|
1.51 |
|
0.99 |
|
|
|
|
1.1 |
|
0.96 |
|
1.22 |
|
1.21 |
| 全燐 (mg/l) |
|
0.117 |
|
0.045 |
|
|
|
|
0.05 |
|
0.047 |
|
0.098 |
|
0.063 |
| 鉄(溶解性) (mg/l) |
|
2.5 |
|
1.4 |
|
|
|
|
1.5 |
|
1.4 |
|
3.9 |
|
2.6 |