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 |
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 |
1015 |
1035 |
1035 |
1040 |
1105 |
1705 |
2305 |
0505 |
1035 |
1020 |
1030 |
1030 |
1040 |
1005 |
1055 |
| 天候 |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
| 気温 (℃) |
16.5 |
19.2 |
22.0 |
21.5 |
28.3 |
27.8 |
18.8 |
19.1 |
18.0 |
20.7 |
11.7 |
9.0 |
6.6 |
0.7 |
3.8 |
| 水温 (℃) |
9.5 |
15.0 |
16.8 |
18.0 |
20.5 |
20.3 |
19.8 |
19.0 |
15.8 |
15.7 |
8.5 |
6.0 |
3.9 |
1.0 |
2.0 |
| 流量 (m3/s) |
168.09 |
75.34 |
87.92 |
206.38 |
156.55 |
150.81 |
147.98 |
150.81 |
171.39 |
113.60 |
67.66 |
134.22 |
96.97 |
39.14 |
46.72 |
| pH |
7.2 |
7.1 |
7.5 |
7.4 |
7.5 |
7.6 |
7.5 |
7.5 |
7.5 |
7.6 |
7.4 |
7.3 |
7.3 |
7.3 |
7.4 |
| DO (mg/l) |
11 |
9.9 |
10 |
8.9 |
9.5 |
9.5 |
8.8 |
8.5 |
9.6 |
10 |
12 |
12 |
12 |
13 |
14 |
| BOD (mg/l) |
0.7 |
1.3 |
1.1 |
1.2 |
1 |
1.1 |
1.2 |
1.2 |
0.8 |
1.2 |
0.9 |
1.4 |
2 |
1.5 |
1.3 |
| COD (mg/l) |
2.2 |
3.2 |
2.7 |
2.1 |
2 |
|
|
|
1.9 |
2.4 |
1.7 |
1.9 |
3.7 |
1.9 |
1.9 |
| SS (mg/l) |
8 |
14 |
4 |
10 |
5 |
3 |
2 |
2 |
7 |
6 |
2 |
5 |
23 |
5 |
6 |
| 大腸菌群数 (MPN/100ml) |
3.3E+04 |
7.9E+02 |
2.2E+04 |
4.9E+03 |
7.0E+03 |
4.9E+03 |
1.7E+04 |
4.9E+04 |
2.8E+04 |
1.1E+03 |
3.3E+02 |
1.3E+04 |
7.9E+03 |
1.4E+03 |
1.1E+03 |
| 全窒素 (mg/l) |
|
2.05 |
|
1.03 |
|
|
|
|
1.08 |
|
0.42 |
|
1.28 |
|
1.25 |
| 全燐 (mg/l) |
|
0.107 |
|
0.03 |
|
|
|
|
0.032 |
|
0.022 |
|
0.093 |
|
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) |
|
< 0.0005 |
|
< 0.0005 |
|
|
|
|
|
|
< 0.0005 |
|
< 0.0005 |
|
|
| 鉄(溶解性) (mg/l) |
|
2.7 |
|
1.3 |
|
|
|
|
1.3 |
|
1.1 |
|
5.5 |
|
2.2 |