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 |
1992.04.16 |
1992.04.22 |
1992.05.06 |
1992.05.19 |
1992.06.03 |
1992.06.17 |
1992.07.15 |
1992.07.29 |
1992.08.04 |
1992.08.04 |
1992.08.04 |
1992.08.05 |
1992.08.26 |
1992.09.02 |
1992.09.16 |
1992.10.07 |
1992.10.21 |
1992.11.04 |
1992.11.18 |
1992.12.02 |
1992.12.16 |
1993.01.06 |
1993.01.27 |
1993.02.03 |
1993.02.24 |
1993.03.03 |
1993.03.10 |
採取時刻 |
1155 |
1200 |
1215 |
1220 |
1205 |
1205 |
1150 |
1205 |
1150 |
1750 |
2350 |
0750 |
1315 |
1150 |
1200 |
1210 |
1200 |
1150 |
1220 |
1140 |
1310 |
1155 |
1245 |
1130 |
1150 |
1200 |
1150 |
天候 |
4 |
4 |
4 |
2 |
2 |
4 |
4 |
4 |
4 |
2 |
2 |
4 |
4 |
4 |
4 |
2 |
4 |
2 |
2 |
4 |
2 |
4 |
4 |
2 |
4 |
4 |
4 |
気温 (℃) |
9.5 |
14.7 |
12.2 |
19.8 |
23.7 |
21.8 |
20.4 |
32.0 |
20.7 |
19.5 |
14.6 |
16.4 |
28.8 |
28.7 |
22.0 |
17.4 |
16.0 |
19.5 |
12.9 |
8.2 |
8.5 |
5.7 |
4.0 |
7.3 |
5.6 |
6.5 |
7.0 |
水温 (℃) |
7.1 |
9.0 |
10.5 |
12.7 |
17.8 |
19.0 |
19.9 |
23.0 |
20.9 |
21.0 |
19.8 |
19.4 |
25.3 |
25.3 |
17.7 |
15.5 |
12.5 |
9.8 |
8.1 |
5.5 |
3.8 |
1.8 |
3.0 |
2.5 |
3.0 |
3.8 |
4.0 |
流量 (m3/s) |
440.55 |
393.56 |
209.38 |
390.99 |
263.67 |
249.00 |
|
143.57 |
125.36 |
108.38 |
111.12 |
135.83 |
192.67 |
169.77 |
244.88 |
154.76 |
232.74 |
217.03 |
180.16 |
222.86 |
314.84 |
228.76 |
176.66 |
236.15 |
274.41 |
276.58 |
303.33 |
pH |
7.2 |
7.3 |
7.1 |
7.2 |
7.4 |
7.5 |
7.6 |
7.6 |
7.6 |
7.6 |
7.5 |
7.6 |
7.5 |
7.6 |
7.5 |
7.6 |
7.5 |
7.5 |
7.5 |
7.4 |
7.4 |
7.1 |
7.6 |
7.6 |
7.2 |
7.4 |
7.3 |
DO (mg/l) |
11 |
10 |
10 |
10 |
9 |
8.8 |
8.9 |
7.9 |
9.5 |
9.3 |
8.2 |
8.2 |
7.5 |
8.9 |
9 |
10 |
9.8 |
11 |
11 |
12 |
12 |
13 |
13 |
13 |
12 |
12 |
12 |
BOD (mg/l) |
1.2 |
1 |
1.2 |
1.2 |
1.6 |
1.4 |
2.1 |
1.1 |
1.2 |
1.2 |
1.3 |
1.3 |
1.2 |
1.2 |
2 |
1.1 |
1.3 |
1 |
1 |
1.3 |
1 |
1.1 |
1.7 |
1.6 |
1.4 |
1.3 |
1.2 |
COD (mg/l) |
2.3 |
|
3 |
|
2.8 |
|
|
2.8 |
2.8 |
|
|
|
|
2.4 |
|
2.5 |
|
2.3 |
|
2.2 |
|
1.5 |
|
2.8 |
|
2.3 |
|
SS (mg/l) |
14 |
11 |
20 |
15 |
8 |
8 |
6 |
9 |
5 |
2 |
2 |
2 |
23 |
4 |
9 |
3 |
22 |
7 |
4 |
5 |
8 |
6 |
5 |
6 |
16 |
10 |
10 |
大腸菌群数 (MPN/100ml) |
7.00E+02 |
1.30E+03 |
1.70E+03 |
4.90E+03 |
1.30E+03 |
2.40E+02 |
4.90E+03 |
1.30E+04 |
2.40E+03 |
2.40E+03 |
7.00E+02 |
9.40E+02 |
1.40E+03 |
2.80E+03 |
7.90E+03 |
1.30E+04 |
1.30E+04 |
1.30E+03 |
4.90E+03 |
7.00E+03 |
4.90E+03 |
3.30E+03 |
1.30E+04 |
2.20E+03 |
1.10E+04 |
2.40E+04 |
4.90E+03 |
全窒素 (mg/l) |
|
|
1.05 |
|
|
|
|
1.23 |
|
|
|
|
|
0.87 |
|
|
|
0.9 |
|
|
|
0.85 |
|
|
|
1.14 |
|
全燐 (mg/l) |
|
|
0.113 |
|
|
|
|
0.077 |
|
|
|
|
|
0.059 |
|
|
|
0.047 |
|
|
|
0.048 |
|
|
|
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 |
|
|
|
|
< 0 |
|
|
|
|
|
|
|
|
|
< 0 |
|
|
|
< 0 |
|
|
|
|
|
鉄(溶解性) (mg/l) |
|
|
5.9 |
|
|
|
|
1.7 |
|
|
|
|
|
1.3 |
|
|
|
1.7 |
|
|
|
1.5 |
|
|
|
3.2 |
|