測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
01954 |
北上川(4) |
北上川橋 |
A |
測定結果
採取年月日 |
1991.04.26 |
1991.04.30 |
1991.05.08 |
1991.05.22 |
1991.06.05 |
1991.06.19 |
1991.07.16 |
1991.07.30 |
1991.08.14 |
1991.08.14 |
1991.08.15 |
1991.08.15 |
1991.08.21 |
1991.09.11 |
1991.09.18 |
1991.10.02 |
1991.10.23 |
1991.11.06 |
1991.11.20 |
1991.12.04 |
1991.12.18 |
1992.01.08 |
1992.01.22 |
1992.02.05 |
1992.02.19 |
1992.03.04 |
1992.03.09 |
採取時刻 |
1150 |
1155 |
1155 |
1210 |
1200 |
1300 |
1210 |
1215 |
1200 |
1800 |
0000 |
0600 |
1335 |
1200 |
1200 |
1155 |
1210 |
1200 |
1215 |
1150 |
1205 |
1210 |
1155 |
1150 |
1215 |
1215 |
1150 |
天候 |
晴れ |
晴れ |
晴れ |
雨 |
晴れ |
晴れ |
雨 |
曇り |
曇り |
晴れ |
曇り |
曇り |
曇り |
雨 |
曇り |
曇り |
晴れ |
晴れ |
曇り |
曇り |
曇り |
晴れ |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
気温 (℃) |
17.8 |
22.5 |
20.5 |
18.2 |
23.6 |
26.4 |
20.4 |
23.8 |
25.0 |
21.7 |
19.8 |
19.3 |
28.2 |
20.0 |
21.1 |
20.1 |
14.2 |
11.0 |
11.7 |
8.6 |
11.5 |
8.5 |
5.0 |
4.5 |
1.2 |
4.4 |
10.3 |
水温 (℃) |
9.5 |
11.5 |
16.0 |
19.0 |
17.5 |
21.0 |
17.2 |
20.5 |
21.5 |
21.5 |
21.3 |
20.9 |
23.9 |
20.0 |
17.0 |
15.8 |
12.3 |
8.5 |
7.5 |
6.0 |
5.7 |
3.5 |
3.8 |
2.8 |
3.4 |
3.0 |
5.2 |
流量 (m3/s) |
470.98 |
325.16 |
140.41 |
179.43 |
291.56 |
279.13 |
391.98 |
418.69 |
371.84 |
319.88 |
296.61 |
301.70 |
430.49 |
243.46 |
403.22 |
391.98 |
648.73 |
259.91 |
271.80 |
360.58 |
325.06 |
229.88 |
201.78 |
165.90 |
165.90 |
195.55 |
152.89 |
pH |
7.2 |
7.1 |
7.1 |
7.3 |
7.4 |
7.4 |
7.3 |
7.4 |
7.3 |
7.3 |
7.4 |
7.4 |
7.6 |
7.4 |
7.5 |
7.4 |
7.4 |
7.3 |
7.5 |
7.3 |
7.3 |
7.4 |
7.4 |
7.3 |
7.3 |
7.3 |
7.4 |
DO (mg/l) |
11 |
10 |
9.8 |
9.1 |
9.6 |
8.5 |
9 |
8.5 |
8.9 |
8.5 |
8.7 |
8.4 |
7.8 |
8.4 |
8.9 |
9.4 |
10 |
11 |
12 |
12 |
12 |
13 |
13 |
12 |
13 |
13 |
12 |
BOD (mg/l) |
< 0.5 |
0.9 |
1.1 |
1.6 |
1.8 |
1.4 |
1.5 |
1.5 |
1.2 |
1.3 |
1.5 |
1 |
1.6 |
1.2 |
1.7 |
1 |
0.8 |
1.1 |
1.6 |
2 |
1.4 |
1.4 |
1.4 |
1.4 |
1.8 |
1.2 |
1.6 |
COD (mg/l) |
2 |
|
3 |
|
3.4 |
|
|
2.4 |
2.9 |
|
|
|
|
|
2.2 |
3.8 |
|
1.6 |
|
1.8 |
|
2.2 |
|
2.9 |
|
2.5 |
|
SS (mg/l) |
19 |
14 |
13 |
10 |
12 |
16 |
26 |
19 |
15 |
13 |
10 |
9 |
22 |
9 |
13 |
23 |
10 |
3 |
5 |
4 |
6 |
9 |
6 |
8 |
6 |
10 |
6 |
大腸菌群数 (MPN/100ml) |
7.0E+02 |
1.7E+03 |
2.2E+03 |
3.3E+03 |
4.9E+03 |
1.3E+04 |
2.8E+04 |
1.3E+04 |
3.3E+03 |
1.1E+04 |
4.9E+03 |
3.3E+03 |
3.3E+04 |
2.4E+04 |
2.8E+03 |
4.9E+04 |
2.4E+03 |
7.0E+02 |
4.9E+03 |
2.2E+03 |
4.9E+02 |
1.1E+03 |
4.9E+02 |
7.9E+02 |
4.9E+02 |
7.9E+03 |
4.9E+03 |
全窒素 (mg/l) |
|
|
1.42 |
|
|
|
|
0.97 |
|
|
|
|
|
|
0.96 |
|
|
0.95 |
|
|
|
0.95 |
|
|
|
1.04 |
|
全燐 (mg/l) |
|
|
0.11 |
|
|
|
|
0.058 |
|
|
|
|
|
|
0.054 |
|
|
0.056 |
|
|
|
0.041 |
|
|
|
0.062 |
|
カドミウム (mg/l) |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
< 0.005 |
|
|
|
|
|
< 0.005 |
< 0.005 |
|
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
全シアン (mg/l) |
|
N |
|
N |
|
N |
N |
|
|
|
|
|
N |
N |
|
|
N |
|
N |
|
N |
|
N |
|
N |
|
N |
|
|
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
鉛 (mg/l) |
|
< 0.05 |
|
< 0.05 |
|
< 0.05 |
< 0.05 |
|
|
|
|
|
< 0.05 |
< 0.05 |
|
|
< 0.05 |
|
< 0.05 |
|
< 0.05 |
|
< 0.05 |
|
< 0.05 |
|
< 0.05 |
六価クロム (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 |
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 |
総水銀 (mg/l) |
|
< 0 |
|
< 0 |
|
< 0 |
< 0 |
|
|
|
|
|
< 0 |
< 0 |
|
|
< 0 |
|
< 0 |
|
< 0 |
|
< 0 |
|
< 0 |
|
< 0 |
PCB (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
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) |
|
|
2.4 |
|
|
|
|
1.5 |
|
|
|
|
|
|
1.4 |
|
|
1.2 |
|
|
|
2.5 |
|
|
|
2.4 |
|