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 |
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 |
1991.08.14 |
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 |
1045 |
1125 |
1050 |
1135 |
1050 |
1225 |
1140 |
1110 |
1050 |
1650 |
2250 |
0450 |
1250 |
1135 |
1055 |
1050 |
1135 |
1100 |
1150 |
1055 |
1135 |
1105 |
1125 |
1055 |
1145 |
1110 |
1115 |
天候 |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
雨 |
曇り |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
晴れ |
雪 |
晴れ |
晴れ |
晴れ |
晴れ |
気温 (℃) |
17.0 |
19.8 |
20.9 |
22.8 |
26.8 |
26.0 |
20.1 |
21.7 |
26.0 |
24.6 |
19.4 |
19.3 |
28.0 |
20.7 |
18.9 |
21.2 |
13.0 |
9.5 |
9.5 |
8.7 |
11.7 |
8.5 |
4.7 |
4.7 |
0.7 |
3.7 |
11.7 |
水温 (℃) |
9.0 |
11.0 |
15.5 |
18.0 |
17.7 |
21.0 |
17.2 |
20.0 |
21.0 |
22.4 |
21.0 |
20.5 |
23.5 |
20.0 |
17.2 |
15.8 |
12.0 |
8.0 |
7.5 |
6.2 |
4.4 |
3.5 |
4.0 |
2.3 |
3.0 |
3.0 |
4.8 |
流量 (m3/s) |
480.01 |
314.83 |
121.09 |
173.85 |
274.09 |
261.12 |
389.20 |
413.02 |
|
|
|
|
413.02 |
221.13 |
343.68 |
351.07 |
343.68 |
181.78 |
264.33 |
354.79 |
261.12 |
236.12 |
181.78 |
158.52 |
136.85 |
181.78 |
143.89 |
pH |
7.2 |
7.1 |
7 |
7.3 |
7.4 |
7.4 |
7.3 |
7.4 |
7.3 |
7.4 |
7.4 |
7.4 |
7.7 |
7.4 |
7.4 |
7.4 |
7.3 |
7.3 |
7.5 |
7.3 |
7.3 |
7.4 |
7.3 |
7.2 |
7.2 |
7.3 |
7.4 |
DO (mg/l) |
11 |
10 |
9.9 |
9.2 |
9.7 |
8.6 |
8.9 |
8.5 |
9.3 |
8.9 |
8.6 |
8.4 |
8.5 |
8.5 |
9 |
9.5 |
10 |
11 |
12 |
12 |
12 |
13 |
13 |
13 |
13 |
14 |
13 |
BOD (mg/l) |
0.5 |
0.9 |
1.2 |
2 |
1.7 |
1.4 |
1.4 |
1.4 |
1.4 |
1.5 |
1.3 |
1.4 |
1.8 |
1.2 |
1 |
1.3 |
0.8 |
1.4 |
1.7 |
1 |
1.8 |
1.7 |
1.4 |
1.3 |
2.8 |
1 |
1.6 |
COD (mg/l) |
2.3 |
|
3 |
|
3.6 |
|
|
2.1 |
2.1 |
|
|
|
|
|
2.2 |
3.7 |
|
1.6 |
|
1.7 |
|
2.8 |
|
2.6 |
|
2.3 |
|
SS (mg/l) |
14 |
15 |
15 |
11 |
11 |
17 |
25 |
12 |
7 |
6 |
6 |
7 |
25 |
7 |
9 |
20 |
8 |
2 |
7 |
4 |
4 |
10 |
5 |
9 |
4 |
14 |
8 |
大腸菌群数 (MPN/100ml) |
7.9E+02 |
2.2E+03 |
7.9E+02 |
1.7E+03 |
7.9E+04 |
1.1E+04 |
1.7E+05 |
1.3E+04 |
1.3E+04 |
1.7E+04 |
1.7E+05 |
1.1E+04 |
1.1E+04 |
1.4E+04 |
7.9E+03 |
2.8E+03 |
1.7E+03 |
4.9E+02 |
7.9E+03 |
7.9E+03 |
7.9E+02 |
7.0E+03 |
4.9E+02 |
1.4E+03 |
3.3E+02 |
3.3E+03 |
4.9E+02 |
全窒素 (mg/l) |
|
|
1.47 |
|
|
|
|
0.94 |
|
|
|
|
|
|
0.88 |
|
|
0.81 |
|
|
|
0.89 |
|
|
|
0.92 |
|
全燐 (mg/l) |
|
|
0.114 |
|
|
|
|
0.052 |
|
|
|
|
|
|
0.053 |
|
|
0.059 |
|
|
|
0.04 |
|
|
|
0.017 |
|
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) |
|
|
2.7 |
|
|
|
|
1.5 |
|
|
|
|
|
|
1.4 |
|
|
1.1 |
|
|
|
2.7 |
|
|
|
2.3 |
|