測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 01953 |
北上川（４） |
北上大橋 |
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 |
1130 |
1155 |
1145 |
1145 |
1130 |
1730 |
2330 |
0530 |
1135 |
1145 |
1130 |
1120 |
1135 |
1130 |
1140 |
| 天候 |
4 |
4 |
2 |
4 |
4 |
2 |
2 |
4 |
4 |
2 |
2 |
4 |
4 |
2 |
4 |
| 気温 (℃) |
7.0 |
13.6 |
24.6 |
30.0 |
20.4 |
19.8 |
14.6 |
15.6 |
29.0 |
17.0 |
16.8 |
7.9 |
7.5 |
7.3 |
7.9 |
| 水温 (℃) |
8.1 |
10.5 |
17.8 |
22.3 |
20.7 |
21.2 |
19.6 |
19.2 |
25.7 |
15.0 |
9.5 |
5.5 |
1.5 |
2.0 |
3.8 |
| 流量 (m3/s) |
488.88 |
203.04 |
243.37 |
122.22 |
82.63 |
73.94 |
82.63 |
106.47 |
150.89 |
127.71 |
176.00 |
196.10 |
203.40 |
147.88 |
258.94 |
| pH |
7.2 |
7.2 |
7.4 |
7.6 |
7.5 |
7.5 |
7.5 |
7.6 |
7.6 |
7.5 |
7.5 |
7.3 |
7.3 |
7.5 |
7.3 |
| DO (mg/l) |
11 |
10 |
9.2 |
8.5 |
9.3 |
9 |
8.7 |
8 |
8.4 |
9.9 |
11 |
12 |
13 |
13 |
12 |
| BOD (mg/l) |
1 |
1.2 |
1.6 |
1 |
1.1 |
1.1 |
1.1 |
1.1 |
0.9 |
1.2 |
1 |
1.3 |
1.1 |
1.4 |
1.2 |
| COD (mg/l) |
2.2 |
3 |
2.4 |
2.8 |
2.4 |
|
|
|
2.6 |
2.3 |
2.4 |
2 |
1.5 |
2.3 |
2.3 |
| SS (mg/l) |
9 |
17 |
7 |
8 |
4 |
2 |
2 |
3 |
5 |
3 |
7 |
4 |
4 |
5 |
10 |
| 大腸菌群数 (MPN/100ml) |
7.90E+02 |
4.90E+03 |
3.30E+03 |
2.40E+03 |
4.90E+02 |
3.30E+02 |
1.30E+03 |
4.90E+02 |
1.10E+03 |
1.30E+04 |
1.30E+03 |
1.10E+04 |
1.30E+04 |
4.90E+03 |
3.30E+04 |
| 全窒素 (mg/l) |
|
1.06 |
|
1.58 |
|
|
|
|
0.92 |
|
0.84 |
|
0.8 |
|
1.1 |
| 全燐 (mg/l) |
|
0.109 |
|
0.077 |
|
|
|
|
0.06 |
|
0.049 |
|
0.043 |
|
0.068 |