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 |
1992.04.16 |
1992.05.06 |
1992.06.03 |
1992.07.29 |
1992.08.04 |
1992.08.04 |
1992.08.04 |
1992.08.05 |
1992.09.02 |
1992.10.07 |
1992.11.04 |
1992.12.02 |
1993.01.06 |
1993.02.03 |
1993.03.03 |
| 採取時刻 |
1340 |
1410 |
1345 |
1405 |
0950 |
1550 |
2150 |
0350 |
1405 |
1345 |
1415 |
1340 |
1410 |
1350 |
1405 |
| 天候 |
4 |
2 |
2 |
4 |
2 |
4 |
4 |
4 |
4 |
4 |
2 |
2 |
4 |
4 |
雨 |
| 気温 (℃) |
9.9 |
13.7 |
26.4 |
28.1 |
25.4 |
24.1 |
15.8 |
16.5 |
26.0 |
18.1 |
13.8 |
5.3 |
5.0 |
5.5 |
3.0 |
| 水温 (℃) |
6.5 |
12.2 |
16.1 |
20.7 |
20.0 |
21.5 |
19.0 |
17.8 |
22.3 |
14.5 |
10.8 |
6.5 |
3.0 |
2.0 |
2.6 |
| 流量 (m3/s) |
114.98 |
72.75 |
90.33 |
57.07 |
23.76 |
23.76 |
23.76 |
23.76 |
27.45 |
46.56 |
40.15 |
34.21 |
34.21 |
26.19 |
72.75 |
| pH |
7.1 |
7.6 |
7.5 |
7.5 |
7.5 |
7.6 |
7.4 |
7.3 |
7.7 |
8.1 |
7.6 |
7.7 |
8.1 |
7.8 |
7.5 |
| DO (mg/l) |
11 |
11 |
10 |
8.8 |
9.5 |
9.5 |
7.9 |
8.1 |
9 |
11 |
11 |
12 |
14 |
14 |
13 |
| BOD (mg/l) |
1.3 |
1.2 |
1.3 |
0.9 |
0.9 |
0.8 |
0.9 |
0.9 |
0.9 |
1.2 |
1 |
0.8 |
1.2 |
1.3 |
0.8 |
| COD (mg/l) |
2.4 |
1.9 |
1.7 |
2 |
1.8 |
|
|
|
2.1 |
2 |
2.1 |
1.4 |
1.6 |
1.4 |
1.5 |
| SS (mg/l) |
8 |
9 |
3 |
7 |
2 |
8 |
6 |
4 |
3 |
4 |
3 |
1 |
2 |
1 |
8 |
| 大腸菌群数 (MPN/100ml) |
3.30E+03 |
4.90E+02 |
3.30E+03 |
3.30E+04 |
2.20E+05 |
7.90E+03 |
4.90E+03 |
1.30E+04 |
3.30E+04 |
4.90E+03 |
1.10E+03 |
2.20E+03 |
7.90E+02 |
1.30E+03 |
4.90E+03 |
| 全窒素 (mg/l) |
|
0.7 |
|
1.08 |
|
|
|
|
0.91 |
|
0.62 |
|
0.84 |
|
0.96 |
| 全燐 (mg/l) |
|
0.021 |
|
0.03 |
|
|
|
|
0.018 |
|
0.017 |
|
0.012 |
|
0.018 |
| 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 |
|
< 0 |
|
|
|
|
|
|
< 0 |
|
< 0 |
|
|
| 鉄(溶解性) (mg/l) |
|
1.6 |
|
1.9 |
|
|
|
|
2.4 |
|
1.1 |
|
1.3 |
|
2.7 |