測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 01801 |
北上川（３） |
珊瑚橋 |
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 |
1045 |
1100 |
1055 |
1120 |
1125 |
1725 |
2325 |
0525 |
1125 |
1100 |
1105 |
1150 |
1245 |
1115 |
1125 |
| 天候 |
雨 |
2 |
2 |
4 |
4 |
2 |
4 |
4 |
4 |
2 |
2 |
4 |
4 |
4 |
4 |
| 気温 (℃) |
5.9 |
14.5 |
25.9 |
29.4 |
22.3 |
21.9 |
16.4 |
17.2 |
28.7 |
17.3 |
14.6 |
6.6 |
4.5 |
5.0 |
3.9 |
| 水温 (℃) |
6.2 |
11.1 |
16.0 |
21.3 |
20.2 |
20.5 |
19.0 |
18.5 |
24.5 |
13.9 |
10.1 |
5.5 |
1.8 |
2.5 |
2.1 |
| pH |
7.1 |
7.2 |
7.5 |
7.5 |
7.6 |
7.8 |
7.6 |
7.5 |
7.9 |
7.7 |
7.4 |
7.4 |
7.6 |
7.7 |
7.4 |
| DO (mg/l) |
11 |
11 |
10 |
8.3 |
9.8 |
9.9 |
9.2 |
8.3 |
8.8 |
11 |
11 |
12 |
14 |
14 |
13 |
| BOD (mg/l) |
1.2 |
1.6 |
1.2 |
1.1 |
0.7 |
1.2 |
1 |
0.9 |
1.1 |
1.3 |
1.1 |
1.3 |
0.9 |
1.5 |
0.9 |
| COD (mg/l) |
2 |
3.2 |
2.1 |
3.1 |
2.4 |
|
|
|
2.3 |
2.3 |
2.3 |
1.9 |
1.5 |
2.2 |
2.1 |
| SS (mg/l) |
8 |
24 |
5 |
14 |
3 |
5 |
6 |
5 |
3 |
2 |
5 |
3 |
3 |
3 |
8 |
| 大腸菌群数 (MPN/100ml) |
3.30E+02 |
1.70E+03 |
1.30E+03 |
2.20E+04 |
7.90E+03 |
1.30E+04 |
4.90E+03 |
3.30E+03 |
2.20E+04 |
4.90E+03 |
7.90E+02 |
1.70E+04 |
7.90E+02 |
7.90E+02 |
3.30E+03 |
| 全窒素 (mg/l) |
|
1.39 |
|
1.34 |
|
|
|
|
1.01 |
|
1.08 |
|
1.2 |
|
1.33 |
| 全燐 (mg/l) |
|
0.116 |
|
0.079 |
|
|
|
|
0.047 |
|
0.039 |
|
0.036 |
|
0.047 |
| 鉄(溶解性) (mg/l) |
|
8 |
|
2.2 |
|
|
|
|
1.4 |
|
1.6 |
|
2.2 |
|
4.3 |