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 |
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 |
1400 |
1410 |
1405 |
1405 |
0930 |
1530 |
2130 |
0330 |
1405 |
1345 |
1405 |
1340 |
1410 |
1330 |
1415 |
| 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 (℃) |
19.5 |
21.0 |
24.4 |
22.0 |
20.9 |
26.8 |
20.6 |
19.5 |
18.9 |
18.3 |
11.1 |
8.2 |
5.3 |
2.5 |
4.3 |
| 水温 (℃) |
11.0 |
16.0 |
18.7 |
16.8 |
17.7 |
20.5 |
19.0 |
18.0 |
16.5 |
15.7 |
9.3 |
7.2 |
4.2 |
2.6 |
4.6 |
| 流量 (m3/s) |
116.38 |
|
46.72 |
116.38 |
77.51 |
77.51 |
77.51 |
59.70 |
116.38 |
67.60 |
53.74 |
81.94 |
69.24 |
|
|
| pH |
7.2 |
7.1 |
7.6 |
7.3 |
7.4 |
7.4 |
7.3 |
7.3 |
7.4 |
7.6 |
7.5 |
7.4 |
7.4 |
7.3 |
7.4 |
| DO (mg/l) |
11 |
11 |
10 |
9.1 |
9.8 |
9.1 |
8.6 |
8.6 |
9.4 |
10 |
12 |
12 |
13 |
14 |
13 |
| BOD (mg/l) |
0.5 |
1.1 |
1.1 |
1 |
0.7 |
0.7 |
0.8 |
0.9 |
1 |
0.8 |
1.2 |
1.4 |
1.5 |
1.6 |
1.3 |
| COD (mg/l) |
2 |
1.3 |
1.8 |
1.7 |
1.2 |
|
|
|
1.9 |
1.6 |
1.1 |
1.7 |
1.7 |
1.3 |
1.4 |
| SS (mg/l) |
7 |
2 |
2 |
13 |
3 |
3 |
3 |
2 |
8 |
5 |
1 |
4 |
6 |
2 |
3 |
| 大腸菌群数 (MPN/100ml) |
2.2E+03 |
2.2E+03 |
1.3E+03 |
3.3E+03 |
1.3E+04 |
2.2E+04 |
1.4E+04 |
2.2E+04 |
1.3E+04 |
1.1E+03 |
7.9E+02 |
1.3E+03 |
2.2E+03 |
2.3E+02 |
1.3E+03 |
| 全窒素 (mg/l) |
|
1.01 |
|
0.83 |
|
|
|
|
1.02 |
|
1.33 |
|
1.32 |
|
1.16 |
| 全燐 (mg/l) |
|
0.013 |
|
0.016 |
|
|
|
|
0.02 |
|
0.01 |
|
0.021 |
|
0.015 |
| 砒素 (mg/l) |
< 0.02 |
< 0.02 |
< 0.02 |
< 0.02 |
< 0.02 |
|
|
|
< 0.02 |
< 0.02 |
< 0.02 |
< 0.02 |
< 0.02 |
< 0.02 |
< 0.02 |
| トリクロロエチレン (mg/l) |
|
< 0.002 |
|
< 0.002 |
|
|
|
|
|
|
< 0.002 |
|
< 0.002 |
|
|
| テトラクロロエチレン (mg/l) |
|
< 0.0005 |
|
< 0.0005 |
|
|
|
|
|
|
< 0.0005 |
|
< 0.0005 |
|
|
| 鉄(溶解性) (mg/l) |
|
0.6 |
|
1.4 |
|
|
|
|
1.3 |
|
0.7 |
|
1.3 |
|
1.1 |