測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 01852 |
北上川（３） |
朝日橋 |
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 |
1015 |
1020 |
1015 |
1040 |
1035 |
1635 |
2235 |
0435 |
1045 |
1025 |
1030 |
1100 |
1110 |
1025 |
1040 |
| 天候 |
雨 |
2 |
2 |
4 |
4 |
2 |
2 |
4 |
4 |
2 |
2 |
2 |
4 |
4 |
雪 |
| 気温 (℃) |
6.2 |
12.0 |
23.1 |
27.7 |
21.9 |
20.8 |
16.0 |
17.6 |
28.8 |
15.0 |
15.1 |
8.6 |
5.3 |
4.4 |
3.5 |
| 水温 (℃) |
6.2 |
10.8 |
15.0 |
20.9 |
20.5 |
20.5 |
19.2 |
18.6 |
24.2 |
13.0 |
10.2 |
5.5 |
1.5 |
2.0 |
2.0 |
| 流量 (m3/s) |
156.27 |
61.49 |
102.30 |
48.06 |
32.29 |
32.29 |
32.29 |
29.76 |
63.65 |
60.43 |
75.12 |
62.55 |
49.64 |
43.68 |
79.19 |
| pH |
7.1 |
7.2 |
7.4 |
7.6 |
7.5 |
7.7 |
7.6 |
7.4 |
7.7 |
7.6 |
7.5 |
7.3 |
7.4 |
7.5 |
7.4 |
| DO (mg/l) |
11 |
11 |
10 |
8.4 |
9.5 |
10 |
8.9 |
8.1 |
9.2 |
11 |
11 |
12 |
14 |
14 |
13 |
| BOD (mg/l) |
1.3 |
1.4 |
1.3 |
0.9 |
0.9 |
0.9 |
0.9 |
1.1 |
1.1 |
1.2 |
0.9 |
1.1 |
1 |
1.6 |
1 |
| COD (mg/l) |
2.1 |
3.4 |
2 |
2.7 |
2.5 |
|
|
|
2.4 |
2.2 |
2.5 |
1.7 |
1.9 |
2.2 |
2.1 |
| SS (mg/l) |
7 |
20 |
6 |
11 |
5 |
5 |
5 |
6 |
2 |
2 |
5 |
3 |
2 |
4 |
6 |
| 大腸菌群数 (MPN/100ml) |
3.30E+03 |
1.70E+03 |
2.40E+03 |
2.40E+04 |
3.30E+04 |
7.00E+03 |
1.10E+04 |
1.10E+04 |
7.90E+03 |
1.30E+04 |
7.90E+02 |
1.70E+03 |
7.90E+02 |
2.40E+03 |
2.80E+03 |
| 全窒素 (mg/l) |
|
1.3 |
|
1.17 |
|
|
|
|
1.04 |
|
1.12 |
|
1.26 |
|
1.36 |
| 全燐 (mg/l) |
|
0.099 |
|
0.071 |
|
|
|
|
0.046 |
|
0.045 |
|
0.036 |
|
0.047 |
| 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) |
|
6.2 |
|
2.2 |
|
|
|
|
1.5 |
|
1.5 |
|
1.6 |
|
3.6 |