測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 01701 |
北上川（２） |
南大橋 |
A |
測定結果
| 採取年月日 |
1993.04.15 |
1993.05.19 |
1993.06.02 |
1993.07.07 |
1993.08.10 |
1993.08.10 |
1993.08.10 |
1993.08.10 |
1993.09.02 |
1993.10.06 |
1993.11.10 |
1993.12.15 |
1994.01.12 |
1994.02.09 |
1994.03.02 |
| 採取時刻 |
1400 |
1405 |
1340 |
1430 |
0040 |
0640 |
1240 |
1840 |
1420 |
1330 |
1420 |
1340 |
1410 |
1345 |
1350 |
| 天候 |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
曇り |
曇り |
曇り |
晴れ |
曇り |
曇り |
晴れ |
曇り |
曇り |
雪 |
| 気温 (℃) |
15.7 |
19.2 |
20.2 |
24.5 |
16.0 |
16.0 |
21.5 |
18.0 |
26.5 |
17.7 |
9.0 |
0.3 |
2.5 |
4.5 |
2.4 |
| 水温 (℃) |
6.5 |
12.2 |
16.1 |
20.7 |
20.0 |
21.5 |
19.0 |
17.8 |
22.3 |
14.5 |
10.8 |
6.5 |
2.8 |
3.5 |
1.8 |
| 流量 (m3/s) |
60.70 |
120.40 |
93.30 |
41.40 |
56.40 |
51.20 |
52.90 |
60.10 |
54.70 |
67.70 |
40.10 |
86.50 |
31.40 |
23.70 |
63.80 |
| pH |
8.4 |
7.2 |
7.5 |
7.6 |
7.4 |
7.4 |
7.5 |
7.5 |
7.7 |
8.1 |
7.7 |
7.4 |
7.5 |
8.1 |
7.9 |
| DO (mg/l) |
12 |
10 |
10 |
9.1 |
8.7 |
8.9 |
9.3 |
8.4 |
9.5 |
11 |
12 |
13 |
14 |
14 |
14 |
| BOD (mg/l) |
1 |
1 |
0.9 |
0.6 |
< 0.5 |
< 0.5 |
0.6 |
0.7 |
0.5 |
1 |
1 |
1.5 |
0.9 |
1.6 |
1 |
| COD (mg/l) |
1.9 |
1.9 |
1.7 |
2.5 |
|
1.5 |
|
|
1.7 |
1.4 |
1.6 |
0.9 |
1.2 |
1.2 |
1.7 |
| SS (mg/l) |
4 |
18 |
2 |
6 |
3 |
2 |
2 |
4 |
2 |
2 |
2 |
2 |
1 |
2 |
3 |
| 大腸菌群数 (MPN/100ml) |
3.3E+02 |
1.7E+03 |
3.3E+02 |
3.3E+03 |
3.3E+03 |
7.9E+03 |
3.3E+03 |
1.1E+03 |
1.3E+04 |
4.9E+02 |
4.9E+02 |
1.7E+03 |
7.9E+02 |
1.1E+03 |
7.9E+02 |
| 全窒素 (mg/l) |
|
0.84 |
|
1.08 |
|
|
|
|
1 |
|
0.56 |
|
0.84 |
|
0.71 |
| 全燐 (mg/l) |
|
0.024 |
|
0.026 |
|
|
|
|
0.015 |
|
0.012 |
|
0.011 |
|
0.012 |
| 砒素 (mg/l) |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
|
< 0.01 |
|
|
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
| 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) |
|
1.9 |
|
2.3 |
|
|
|
|
1.2 |
|
1.2 |
|
0.9 |
|
1.3 |