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 |
1989.04.24 |
1989.05.10 |
1989.06.07 |
1989.07.05 |
1989.08.01 |
1989.08.01 |
1989.08.01 |
1989.08.02 |
1989.09.18 |
1989.10.04 |
1989.11.08 |
1989.12.06 |
1990.01.10 |
1990.02.01 |
1990.03.01 |
| 採取時刻 |
1030 |
1040 |
1015 |
1035 |
1030 |
1630 |
2230 |
0430 |
1030 |
1025 |
1045 |
1020 |
1045 |
1045 |
1040 |
| 天候 |
雨 |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
雨 |
雨 |
曇り |
晴れ |
曇り |
雪 |
晴れ |
| 気温 (℃) |
9.8 |
20.5 |
23.1 |
21 |
28 |
28 |
23.1 |
22.8 |
22.3 |
13.5 |
12 |
6.6 |
1.2 |
-3.5 |
5 |
| 水温 (℃) |
9 |
13 |
16.7 |
18 |
25.6 |
26.3 |
25.3 |
24.4 |
18.8 |
13.8 |
10.8 |
4.8 |
1.2 |
0.3 |
3 |
| 流量 (m3/s) |
181.7 |
70.1 |
39.0 |
22.5 |
|
|
|
|
137.4 |
136.7 |
48.2 |
106.1 |
|
|
105.5 |
| pH |
7.1 |
7.4 |
7.4 |
7.5 |
7.6 |
7.7 |
7.5 |
7.4 |
7.5 |
7.5 |
7.4 |
7.5 |
7.3 |
7.5 |
7.1 |
| DO (mg/l) |
10.8 |
11.8 |
9.4 |
9.5 |
8.2 |
9.2 |
7.1 |
6.4 |
8.9 |
10.2 |
10.3 |
12.5 |
13.1 |
14 |
13.3 |
| BOD (mg/l) |
1 |
1.5 |
2.2 |
1.9 |
0.9 |
1.1 |
1.4 |
1.1 |
1.5 |
1.3 |
2.7 |
1.7 |
1.3 |
1.6 |
1.2 |
| COD (mg/l) |
2.9 |
2.8 |
3.8 |
4.2 |
2.5 |
|
|
|
2.1 |
2.9 |
4.2 |
1.8 |
1.8 |
2.4 |
2.2 |
| SS (mg/l) |
10 |
9 |
11 |
13 |
5 |
6 |
7 |
8 |
6 |
10 |
19 |
7 |
4 |
5 |
9 |
| 大腸菌群数 (MPN/100ml) |
4.9E+03 |
1.1E+03 |
1.3E+04 |
7.9E+03 |
1.7E+03 |
3.3E+03 |
7.9E+03 |
2.2E+03 |
7.9E+04 |
4.9E+02 |
1.1E+04 |
3.5E+03 |
2.4E+02 |
1.3E+03 |
1.7E+03 |
| 全窒素 (mg/l) |
|
1.1 |
|
1.42 |
|
|
|
|
1.27 |
|
1.4 |
|
1.12 |
|
1.28 |
| 全燐 (mg/l) |
|
0.053 |
|
0.093 |
|
|
|
|
0.035 |
|
0.083 |
|
0.038 |
|
0.034 |
| 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 |
| 鉄(溶解性) (mg/l) |
|
0.12 |
|
0.31 |
|
|
|
|
0.13 |
|
0.28 |
|
0.1 |
|
0.29 |