測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 01701 |
北上川（２） |
南大橋 |
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 |
1345 |
1410 |
1345 |
1410 |
1000 |
1600 |
2200 |
0400 |
1410 |
1340 |
1405 |
1420 |
1405 |
1345 |
1415 |
| 天候 |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
曇り |
晴れ |
晴れ |
| 気温 (℃) |
6.5 |
20 |
23.3 |
26 |
30.4 |
28.8 |
23.8 |
22.6 |
20.4 |
13.4 |
12.9 |
5 |
3 |
0.4 |
9.6 |
| 水温 (℃) |
8.8 |
14.3 |
17 |
21 |
23.5 |
25.8 |
24 |
23 |
18 |
12 |
11.7 |
6.6 |
3 |
2.2 |
5.1 |
| 流量 (m3/s) |
166.9 |
47.3 |
80.7 |
39.5 |
17.3 |
15.9 |
15.3 |
15.3 |
148.4 |
49.7 |
32.4 |
125.3 |
34.4 |
32.4 |
133.8 |
| pH |
7.1 |
7.6 |
7.4 |
7.4 |
7.5 |
7.6 |
7.5 |
7.4 |
7.3 |
7.3 |
7.6 |
7.4 |
7.5 |
7.7 |
7 |
| DO (mg/l) |
11.3 |
11.5 |
10.4 |
9.6 |
8.8 |
9.2 |
6.6 |
6.3 |
8.8 |
10.5 |
11.4 |
12.4 |
13.8 |
15.1 |
13.4 |
| BOD (mg/l) |
0.9 |
1.3 |
1.3 |
1.2 |
2 |
1.8 |
1.8 |
1.2 |
1.8 |
1.2 |
1.3 |
1.4 |
1.2 |
1.3 |
1 |
| COD (mg/l) |
2 |
2 |
2.2 |
2.4 |
1.9 |
|
|
|
3.8 |
1.4 |
2.1 |
1.4 |
1.4 |
1.3 |
2.1 |
| SS (mg/l) |
7 |
3 |
6 |
4 |
3 |
3 |
5 |
6 |
24 |
2 |
3 |
5 |
3 |
2 |
6 |
| 大腸菌群数 (MPN/100ml) |
1.7E+03 |
4.9E+02 |
4.9E+03 |
1.4E+03 |
4.9E+04 |
1.7E+04 |
2.4E+04 |
3.3E+04 |
1.1E+05 |
2.2E+03 |
3.3E+03 |
4.9E+02 |
4.9E+02 |
7.9E+02 |
4.9E+02 |
| n-ヘキサン抽出物質 (mg/l) |
N |
N |
N |
N |
N |
|
|
N |
N |
N |
N |
N |
|
|
|
| 全窒素 (mg/l) |
|
0.71 |
|
1.01 |
|
|
|
|
1.12 |
|
0.98 |
|
0.91 |
|
0.68 |
| 全燐 (mg/l) |
|
0.024 |
|
0.023 |
|
|
|
|
0.089 |
|
0.018 |
|
0.016 |
|
0.014 |
| 砒素 (mg/l) |
< 0.02 |
< 0.02 |
< 0.02 |
< 0.02 |
< 0.02 |
|
|
|
< 0.02 |
< 0.02 |
< 0.02 |
< 0.02 |
N |
N |
N |
| 鉄(溶解性) (mg/l) |
|
0.06 |
|
0.13 |
|
|
|
|
0.21 |
|
0.07 |
|
0.06 |
|
0.09 |