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 |
1994.04.14 |
1994.05.11 |
1994.06.01 |
1994.07.20 |
1994.08.02 |
1994.08.02 |
1994.08.02 |
1994.08.02 |
1994.09.07 |
1994.10.17 |
1994.11.02 |
1994.12.07 |
1995.01.11 |
1995.02.01 |
1995.03.01 |
| 採取時刻 |
1130 |
1125 |
1107 |
1125 |
0115 |
0715 |
1315 |
1915 |
1104 |
1107 |
1058 |
1033 |
1107 |
1120 |
1055 |
| 天候 |
曇り |
曇り |
晴れ |
曇り |
曇り |
曇り |
晴れ |
雨 |
曇り |
曇り |
晴れ |
雨 |
晴れ |
晴れ |
曇り |
| 気温 (℃) |
14.7 |
22.5 |
22.4 |
24.6 |
25.6 |
26.0 |
30.8 |
27.7 |
22.7 |
14.0 |
13.0 |
5.0 |
0.5 |
3.5 |
3.4 |
| 水温 (℃) |
7.2 |
13.1 |
17.9 |
25.9 |
27.5 |
26.8 |
30.1 |
28.2 |
24.3 |
15.0 |
11.6 |
4.8 |
0.8 |
2.0 |
4.7 |
| 流量 (m3/s) |
502.15 |
273.97 |
278.20 |
71.67 |
62.10 |
60.27 |
59.07 |
67.12 |
114.38 |
269.77 |
114.38 |
128.41 |
165.37 |
143.24 |
128.41 |
| pH |
7.2 |
7.2 |
7.2 |
7.8 |
7.4 |
7.4 |
7.6 |
7.4 |
7.5 |
7.4 |
7.8 |
7.6 |
7.4 |
7.4 |
7.4 |
| DO (mg/l) |
12.0 |
11.0 |
8.6 |
8.1 |
7.5 |
7.6 |
8.7 |
7.4 |
7.3 |
9.2 |
11.0 |
13.0 |
13.0 |
14.0 |
12.0 |
| BOD (mg/l) |
1.8 |
1.1 |
1.4 |
1.5 |
0.9 |
0.8 |
0.7 |
0.8 |
1.1 |
1.2 |
0.6 |
1.8 |
1.9 |
1.3 |
1.5 |
| COD (mg/l) |
4.2 |
3.1 |
2.8 |
2.9 |
|
|
3.2 |
|
3.4 |
2.3 |
2.2 |
2.6 |
2.4 |
2.4 |
3.9 |
| SS (mg/l) |
35 |
12 |
11 |
2 |
7 |
4 |
3 |
5 |
10 |
21 |
2 |
7 |
5 |
4 |
13 |
| 大腸菌群数 (MPN/100ml) |
7.9E+03 |
4.9E+03 |
1.7E+03 |
1.3E+03 |
7.9E+02 |
4.9E+02 |
4.9E+02 |
7.9E+02 |
3.3E+03 |
2.0E+03 |
3.3E+02 |
1.3E+04 |
1.3E+04 |
1.7E+04 |
1.3E+04 |
| 全窒素 (mg/l) |
|
1.00 |
|
0.94 |
|
|
|
|
1.40 |
|
0.97 |
|
1.40 |
|
1.60 |
| 全燐 (mg/l) |
|
0.085 |
|
0.062 |
|
|
|
|
0.079 |
|
0.054 |
|
0.068 |
|
0.078 |
| 透視度 |
> 30 |
30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |