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 |
1990.04.27 |
1990.04.30 |
1990.05.09 |
1990.05.23 |
1990.06.06 |
1990.06.20 |
1990.07.10 |
1990.07.30 |
1990.08.07 |
1990.08.07 |
1990.08.08 |
1990.08.08 |
1990.08.22 |
1990.09.05 |
1990.09.19 |
1990.10.03 |
1990.10.24 |
1990.11.14 |
1990.11.21 |
1990.12.05 |
1990.12.19 |
1991.01.09 |
1991.01.23 |
1991.02.06 |
1991.02.20 |
1991.03.01 |
1991.03.06 |
採取時刻 |
1310 |
1150 |
1325 |
1320 |
1150 |
1200 |
1210 |
1215 |
1220 |
1820 |
0020 |
0620 |
1405 |
1300 |
1300 |
1145 |
1300 |
1245 |
1245 |
1245 |
1300 |
1340 |
1230 |
1300 |
1300 |
1145 |
1200 |
天候 |
晴れ |
曇り |
晴れ |
曇り |
晴れ |
曇り |
曇り |
晴れ |
晴れ |
曇り |
曇り |
曇り |
晴れ |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
晴れ |
気温 (℃) |
16.4 |
13.2 |
21.8 |
15.9 |
20.5 |
27.9 |
19 |
29.3 |
34.5 |
22.8 |
22 |
22 |
30 |
24.6 |
26.8 |
20.9 |
18.8 |
20.7 |
|
9 |
6.7 |
4.6 |
3.6 |
3.1 |
1.3 |
2.5 |
14.7 |
水温 (℃) |
611.9 |
9.8 |
13 |
14.3 |
18.5 |
20.5 |
18 |
23.2 |
28.4 |
27.3 |
27.2 |
26.5 |
24.2 |
24 |
20.2 |
17.8 |
13.7 |
10 |
6.5 |
7 |
2 |
2 |
3.5 |
2.5 |
2 |
2.5 |
5.4 |
流量 (m3/s) |
439.0 |
572.5 |
402.3 |
183.6 |
171.2 |
249.9 |
225.9 |
270.0 |
131.1 |
113.8 |
138.3 |
138.3 |
340.7 |
223.6 |
392.8 |
221.3 |
138.3 |
581.5 |
459.0 |
465.1 |
315.3 |
198.7 |
185.7 |
165.1 |
237.8 |
370.0 |
389.1 |
pH |
7.4 |
7.2 |
7.3 |
7.3 |
7.4 |
7.4 |
7.3 |
7.5 |
7.7 |
7.7 |
7.9 |
7.6 |
7.5 |
7.5 |
7.4 |
7.4 |
7.7 |
7.2 |
7.3 |
7.1 |
7.2 |
7.3 |
7.3 |
7.2 |
7.1 |
7.3 |
7.2 |
DO (mg/l) |
10.7 |
10.9 |
10 |
9.6 |
8.6 |
8.3 |
9.8 |
8.2 |
9.4 |
8.3 |
8.3 |
7.3 |
7.9 |
7.7 |
8.6 |
8.5 |
10 |
10.8 |
10.7 |
11.7 |
11.7 |
12.1 |
12.9 |
12 |
12.9 |
11.7 |
10.5 |
BOD (mg/l) |
0.9 |
1.9 |
1.4 |
1.5 |
2.1 |
1.2 |
1.7 |
0.7 |
0.7 |
0.9 |
1.7 |
1.8 |
0.8 |
1.2 |
1.4 |
0.8 |
0.9 |
0.9 |
0.7 |
1.2 |
2.2 |
0.6 |
1.7 |
1.1 |
0.7 |
2 |
1.8 |
COD (mg/l) |
|
4.2 |
3.1 |
|
3.2 |
|
|
2.6 |
2.2 |
|
|
|
|
3.6 |
|
2.4 |
|
|
2 |
1.8 |
|
1.7 |
|
2.2 |
|
3.3 |
|
SS (mg/l) |
25 |
51 |
19 |
8 |
19 |
15 |
11 |
19 |
2 |
2 |
20 |
17 |
17 |
15 |
20 |
21 |
2 |
19 |
14 |
13 |
6 |
10 |
4 |
6 |
12 |
31 |
35 |
大腸菌群数 (MPN/100ml) |
4.9E+03 |
1.4E+04 |
2.4E+03 |
1.7E+03 |
4.9E+03 |
2.4E+03 |
7.9E+03 |
7.0E+03 |
7.9E+02 |
3.3E+02 |
1.1E+04 |
1.7E+03 |
7.9E+03 |
2.4E+03 |
3.3E+04 |
2.4E+03 |
3.3E+02 |
2.4E+03 |
7.9E+03 |
4.9E+02 |
4.9E+02 |
7.9E+02 |
2.3E+02 |
4.9E+02 |
7.9E+05 |
7.0E+03 |
4.9E+02 |
全窒素 (mg/l) |
|
|
1.1 |
|
|
|
|
1.23 |
|
|
|
|
|
0.94 |
|
|
|
|
0.89 |
|
|
0.91 |
|
|
|
1.14 |
|
全燐 (mg/l) |
|
|
0.107 |
|
|
|
|
0.07 |
|
|
|
|
|
0.073 |
|
|
|
|
0.05 |
|
|
0.062 |
|
|
|
0.082 |
|
カドミウム (mg/l) |
< 0.005 |
|
|
< 0.005 |
|
< 0.005 |
< 0.005 |
|
|
|
|
|
0 |
|
< 0.005 |
|
< 0.005 |
< 0.005 |
|
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
0 |
全シアン (mg/l) |
N |
|
|
N |
|
N |
N |
|
|
|
|
|
N |
|
N |
|
N |
N |
|
|
N |
|
N |
|
N |
|
N |
|
|
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
鉛 (mg/l) |
< 0.01 |
|
|
< 0.01 |
|
< 0.05 |
< 0.01 |
|
|
|
|
|
0 |
|
< 0.05 |
|
0 |
< 0.05 |
|
|
< 0.05 |
|
< 0.05 |
|
0 |
|
0 |
六価クロム (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
< 0.02 |
|
|
< 0.02 |
|
< 0.02 |
|
0 |
|
< 0.02 |
砒素 (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
< 0.02 |
|
|
< 0.02 |
|
< 0.02 |
|
0 |
|
< 0.02 |
総水銀 (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
< 0.0005 |
|
|
< 0.0005 |
|
< 0.0005 |
|
0 |
|
< 0.0005 |
PCB (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
トリクロロエチレン (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
< 0.002 |
|
|
|
|
|
テトラクロロエチレン (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
< 0.0005 |
|
|
|
|
|
鉄(溶解性) (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
0.11 |
|
|
|
|
0.11 |
|
|
0.13 |
|
|
|
0.18 |
|