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 |
1991.04.26 |
1991.05.08 |
1991.06.05 |
1991.07.30 |
1991.08.14 |
1991.08.14 |
1991.08.14 |
1991.08.15 |
1991.09.18 |
1991.10.02 |
1991.11.06 |
1991.12.04 |
1992.01.08 |
1992.02.05 |
1992.03.04 |
| 採取時刻 |
1035 |
1055 |
1105 |
1105 |
1130 |
1730 |
2330 |
0530 |
1150 |
1035 |
1045 |
1045 |
1105 |
1020 |
1115 |
| 天候 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
| 気温 (℃) |
16.8 |
21.0 |
21.8 |
24.2 |
27.6 |
26.5 |
18.3 |
19.3 |
19.1 |
20.0 |
10.2 |
7.8 |
6.0 |
0.8 |
3.1 |
| 水温 (℃) |
9.7 |
15.4 |
17.2 |
18.0 |
20.2 |
20.0 |
20.1 |
19.1 |
16.0 |
15.7 |
8.5 |
6.2 |
3.9 |
1.8 |
2.4 |
| pH |
7.2 |
7.1 |
7.6 |
7.4 |
7.5 |
7.6 |
7.5 |
7.5 |
7.4 |
7.5 |
7.3 |
7.3 |
7.3 |
7.3 |
7.4 |
| DO (mg/l) |
11 |
9.8 |
10 |
8.9 |
9.5 |
9.2 |
8.5 |
8.3 |
9.3 |
9.9 |
11 |
12 |
12 |
13 |
14 |
| BOD (mg/l) |
0.6 |
1.6 |
1.4 |
1.2 |
1.1 |
1.5 |
0.9 |
1 |
0.9 |
1.1 |
1.4 |
1.6 |
1.9 |
1.8 |
1.5 |
| COD (mg/l) |
2.2 |
3.5 |
2.8 |
2.1 |
2 |
|
|
|
2 |
2.6 |
1.7 |
2.2 |
4 |
2.1 |
2 |
| SS (mg/l) |
7 |
13 |
4 |
10 |
6 |
3 |
3 |
3 |
7 |
6 |
3 |
4 |
23 |
5 |
6 |
| 大腸菌群数 (MPN/100ml) |
2.2E+03 |
3.3E+03 |
1.3E+03 |
1.3E+04 |
3.3E+03 |
7.9E+03 |
1.1E+04 |
1.7E+04 |
1.3E+03 |
2.8E+03 |
2.2E+03 |
7.9E+03 |
2.2E+03 |
3.3E+02 |
2.4E+03 |
| 全窒素 (mg/l) |
|
2.1 |
|
1.08 |
|
|
|
|
1.57 |
|
0.5 |
|
1.32 |
|
1.24 |
| 全燐 (mg/l) |
|
0.138 |
|
0.033 |
|
|
|
|
0.038 |
|
0.032 |
|
0.095 |
|
0.048 |
| 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) |
|
< 0.0005 |
|
< 0.0005 |
|
|
|
|
|
|
< 0.0005 |
|
< 0.0005 |
|
|
| 鉄(溶解性) (mg/l) |
|
2.7 |
|
1.4 |
|
|
|
|
1.4 |
|
1.3 |
|
5.4 |
|
2.3 |