測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
01901 |
北上川(4) |
千歳橋(狐禅寺) |
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 |
1055 |
1125 |
1100 |
1145 |
1105 |
1135 |
1120 |
1110 |
1045 |
1645 |
2245 |
0445 |
1140 |
1050 |
1125 |
1105 |
1125 |
1040 |
1115 |
1050 |
1145 |
1050 |
1130 |
1050 |
1125 |
1100 |
1120 |
天候 |
4 |
4 |
2 |
2 |
2 |
4 |
4 |
4 |
4 |
2 |
2 |
4 |
4 |
4 |
4 |
2 |
4 |
2 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
気温 (℃) |
6.4 |
15.8 |
13.5 |
18.9 |
25.9 |
22.6 |
23.3 |
28.2 |
21.4 |
21.6 |
17.8 |
17.2 |
26.8 |
29.8 |
21.2 |
17.3 |
15.1 |
16.0 |
11.6 |
7.9 |
5.1 |
6.0 |
2.3 |
6.2 |
4.4 |
6.4 |
5.8 |
水温 (℃) |
7.0 |
9.0 |
10.5 |
13.0 |
17.2 |
17.4 |
20.8 |
22.0 |
20.5 |
21.2 |
19.5 |
19.2 |
24.5 |
25.5 |
17.5 |
14.5 |
12.0 |
9.5 |
8.0 |
5.5 |
3.8 |
1.3 |
2.4 |
1.8 |
2.8 |
3.5 |
3.5 |
流量 (m3/s) |
462.17 |
409.87 |
214.73 |
379.23 |
249.97 |
232.02 |
|
138.33 |
|
|
98.60 |
118.68 |
187.40 |
157.07 |
214.73 |
131.61 |
206.34 |
182.16 |
166.88 |
209.12 |
314.66 |
214.73 |
152.27 |
154.66 |
262.31 |
274.95 |
297.79 |
pH |
7.1 |
7.2 |
7.1 |
7.2 |
7.5 |
7.5 |
7.5 |
7.6 |
7.4 |
7.5 |
7.5 |
7.5 |
7.4 |
7.5 |
7.5 |
7.5 |
7.4 |
7.4 |
7.4 |
7.8 |
7.4 |
7.2 |
7.6 |
7.4 |
7.2 |
7.4 |
7.3 |
DO (mg/l) |
11 |
11 |
11 |
10 |
9.4 |
9.6 |
8.9 |
8 |
9.3 |
9.3 |
9 |
8.1 |
7.6 |
7.8 |
9 |
10 |
10 |
11 |
11 |
12 |
12 |
13 |
13 |
13 |
12 |
13 |
13 |
BOD (mg/l) |
1.1 |
1.1 |
1.2 |
1.4 |
1.7 |
1.6 |
2.1 |
1.1 |
1 |
1.2 |
1 |
1.1 |
1.4 |
1.1 |
1.9 |
1.5 |
1.5 |
1 |
0.9 |
1.1 |
1.1 |
1.2 |
2 |
1.6 |
1.2 |
1.1 |
1.2 |
COD (mg/l) |
2.4 |
|
3.2 |
|
2.6 |
|
|
2.9 |
2.6 |
|
|
|
|
2.6 |
|
2.6 |
|
2.4 |
|
2.1 |
|
1.7 |
|
2.5 |
|
2.2 |
|
SS (mg/l) |
10 |
10 |
20 |
15 |
7 |
8 |
7 |
9 |
3 |
4 |
2 |
5 |
16 |
5 |
11 |
2 |
23 |
7 |
4 |
4 |
6 |
3 |
6 |
5 |
11 |
9 |
7 |
大腸菌群数 (MPN/100ml) |
7.90E+02 |
1.10E+04 |
2.40E+03 |
7.90E+02 |
7.90E+03 |
4.90E+02 |
7.90E+03 |
4.90E+03 |
1.30E+03 |
4.90E+03 |
1.10E+03 |
7.00E+03 |
7.90E+03 |
3.30E+03 |
7.00E+03 |
1.30E+04 |
1.30E+04 |
1.30E+03 |
1.70E+04 |
3.30E+04 |
1.70E+04 |
1.10E+04 |
7.90E+03 |
4.90E+03 |
2.20E+04 |
7.90E+04 |
1.70E+03 |
全窒素 (mg/l) |
|
|
1.01 |
|
|
|
|
1.16 |
|
|
|
|
|
0.93 |
|
|
|
0.79 |
|
|
|
0.77 |
|
|
|
1.13 |
|
全燐 (mg/l) |
|
|
0.115 |
|
|
|
|
0.08 |
|
|
|
|
|
0.058 |
|
|
|
0.052 |
|
|
|
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 |
|
|
|
|
< 0 |
|
|
|
|
|
|
|
|
|
< 0 |
|
|
|
< 0 |
|
|
|
|
|
鉄(溶解性) (mg/l) |
|
|
6.3 |
|
|
|
|
1.4 |
|
|
|
|
|
1.2 |
|
|
|
1.5 |
|
|
|
1.7 |
|
|
|
3.7 |
|