測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 01853 |
北上川（３） |
昭和橋 |
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 |
1030 |
1045 |
1040 |
1100 |
1100 |
1700 |
2300 |
0500 |
1110 |
1050 |
1050 |
1125 |
1140 |
1045 |
1105 |
| 天候 |
雨 |
2 |
2 |
4 |
4 |
4 |
2 |
4 |
4 |
2 |
2 |
4 |
4 |
雪 |
4 |
| 気温 (℃) |
5.7 |
12.8 |
26.0 |
27.2 |
21.4 |
20.8 |
16.0 |
17.6 |
28.8 |
16.1 |
14.1 |
6.4 |
4.7 |
4.8 |
3.6 |
| 水温 (℃) |
6.3 |
10.7 |
15.5 |
20.9 |
20.2 |
20.2 |
18.8 |
18.6 |
24.3 |
14.0 |
10.0 |
5.5 |
1.9 |
2.2 |
2.1 |
| pH |
7.2 |
7.2 |
7.4 |
7.5 |
7.5 |
7.7 |
7.6 |
7.5 |
7.8 |
7.6 |
7.4 |
7.3 |
7.4 |
7.5 |
7.4 |
| DO (mg/l) |
11 |
11 |
10 |
8.3 |
9.6 |
9.6 |
8.8 |
8.2 |
8.8 |
11 |
11 |
12 |
14 |
13 |
13 |
| BOD (mg/l) |
1.4 |
1.7 |
1.4 |
1 |
0.9 |
1.1 |
1.2 |
1.1 |
1.2 |
1.3 |
1.2 |
1.2 |
1.1 |
1.8 |
0.9 |
| COD (mg/l) |
2.3 |
3.4 |
2.2 |
2.7 |
2.3 |
|
|
|
2.4 |
2.3 |
2.5 |
1.9 |
1.6 |
2.5 |
2 |
| SS (mg/l) |
9 |
22 |
6 |
13 |
5 |
8 |
6 |
6 |
3 |
3 |
6 |
3 |
3 |
8 |
7 |
| 大腸菌群数 (MPN/100ml) |
4.90E+02 |
4.90E+03 |
7.90E+02 |
1.30E+04 |
1.10E+04 |
7.90E+03 |
7.90E+03 |
1.10E+04 |
1.10E+04 |
7.90E+03 |
7.90E+02 |
2.20E+04 |
2.40E+03 |
7.90E+02 |
3.30E+03 |
| 全窒素 (mg/l) |
|
1.37 |
|
1.26 |
|
|
|
|
1.09 |
|
1.08 |
|
1.15 |
|
1.3 |
| 全燐 (mg/l) |
|
0.115 |
|
0.075 |
|
|
|
|
0.056 |
|
0.042 |
|
0.036 |
|
0.044 |
| 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) |
|
7.7 |
|
2.2 |
|
|
|
|
1.5 |
|
1.4 |
|
1.7 |
|
3.3 |