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 |
1995.04.21 |
1995.04.28 |
1995.05.10 |
1995.05.24 |
1995.06.07 |
1995.06.23 |
1995.07.05 |
1995.07.19 |
1995.08.01 |
1995.08.01 |
1995.08.01 |
1995.08.01 |
1995.08.23 |
1995.09.06 |
1995.09.20 |
1995.10.04 |
1995.10.18 |
1995.11.13 |
1995.11.22 |
1995.12.06 |
1995.12.20 |
1996.01.10 |
1996.01.24 |
1996.02.07 |
1996.02.21 |
1996.03.06 |
1996.03.13 |
採取時刻 |
1315 |
1125 |
1147 |
1145 |
1124 |
1125 |
1125 |
1235 |
0105 |
0705 |
1305 |
1905 |
1230 |
1130 |
1130 |
1100 |
1130 |
1135 |
1140 |
1130 |
1145 |
1150 |
1135 |
1055 |
1150 |
1129 |
1130 |
天候 |
晴れ |
曇り |
曇り |
晴れ |
曇り |
曇り |
曇り |
晴れ |
曇り |
曇り |
曇り |
雨 |
曇り |
曇り |
晴れ |
雨 |
晴れ |
晴れ |
晴れ |
雪 |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
気温 (℃) |
15.8 |
18.1 |
19.9 |
20.0 |
16.0 |
15.2 |
21.0 |
25.6 |
21.7 |
24.0 |
26.3 |
24.4 |
27.2 |
20.5 |
23.5 |
18.0 |
23.9 |
12.5 |
12.4 |
1.5 |
6.4 |
0.0 |
1.0 |
3.5 |
0.4 |
5.5 |
5.5 |
水温 (℃) |
8.5 |
9.9 |
15.0 |
14.8 |
15.2 |
15.8 |
20.0 |
20.0 |
26.0 |
25.9 |
25.9 |
25.0 |
23.0 |
17.3 |
18.5 |
17.0 |
12.2 |
10.0 |
7.3 |
5.0 |
3.0 |
1.0 |
2.1 |
2.0 |
2.5 |
3.0 |
4.0 |
流量 (m3/s) |
853.50 |
930.24 |
316.08 |
291.58 |
354.67 |
316.08 |
249.99 |
531.25 |
99.57 |
134.44 |
121.72 |
115.59 |
279.71 |
362.65 |
306.18 |
268.08 |
156.46 |
469.44 |
289.19 |
205.50 |
188.77 |
169.00 |
169.00 |
183.94 |
199.50 |
203.49 |
147.79 |
外観 |
微茶濁 |
微茶濁 |
茶色 |
無色澄明 |
無色澄明 |
茶色 |
茶色 |
微白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
微白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
茶色 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
臭気 |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
pH |
7.0 |
7.1 |
7.0 |
7.2 |
7.2 |
7.3 |
7.3 |
7.2 |
7.8 |
7.9 |
7.9 |
7.7 |
7.3 |
7.2 |
7.1 |
7.4 |
7.4 |
7.4 |
7.3 |
7.4 |
7.5 |
7.5 |
7.5 |
7.5 |
7.4 |
7.6 |
7.7 |
DO (mg/l) |
11.0 |
10.0 |
9.7 |
9.6 |
9.4 |
8.8 |
8.0 |
8.5 |
8.8 |
8.5 |
8.6 |
7.7 |
7.9 |
8.7 |
9.2 |
8.8 |
8.5 |
11.0 |
11.0 |
11.0 |
13.0 |
13.0 |
13.0 |
13.0 |
13.0 |
12.0 |
12.0 |
BOD (mg/l) |
1.9 |
0.6 |
1.0 |
1.0 |
1.1 |
0.8 |
1.2 |
0.6 |
0.7 |
0.8 |
1.0 |
1.1 |
0.5 |
0.9 |
0.7 |
1.1 |
1.5 |
0.7 |
1.5 |
0.9 |
1.0 |
1.2 |
1.1 |
1.3 |
1.3 |
0.7 |
1.5 |
COD (mg/l) |
|
2.5 |
2.7 |
|
2.6 |
|
4.5 |
|
|
|
3.1 |
|
|
2.0 |
|
2.3 |
|
1.9 |
|
1.9 |
|
2.1 |
|
2.4 |
|
2.3 |
|
SS (mg/l) |
29 |
37 |
20 |
12 |
12 |
17 |
17 |
16 |
2 |
3 |
4 |
4 |
10 |
9 |
6 |
16 |
16 |
10 |
4 |
4 |
3 |
3 |
4 |
4 |
5 |
4 |
8 |
大腸菌群数 (MPN/100ml) |
9.4E+02 |
2.8E+03 |
2.8E+04 |
3.3E+02 |
4.9E+03 |
3.3E+03 |
1.1E+04 |
7.9E+03 |
3.3E+02 |
1.3E+03 |
3.3E+02 |
4.9E+02 |
3.5E+03 |
1.1E+04 |
3.3E+03 |
3.3E+03 |
2.2E+04 |
2.8E+03 |
4.9E+03 |
1.3E+04 |
2.0E+03 |
7.9E+02 |
3.5E+03 |
4.9E+03 |
1.7E+04 |
2.2E+03 |
7.9E+03 |
全窒素 (mg/l) |
|
|
0.98 |
|
|
|
1.30 |
|
|
|
|
|
|
1.00 |
|
|
|
0.92 |
|
|
|
1.30 |
|
|
|
1.40 |
|
全燐 (mg/l) |
|
|
0.099 |
|
|
|
0.098 |
|
|
|
|
|
|
0.048 |
|
|
|
0.054 |
|
|
|
0.061 |
|
|
|
0.056 |
|
カドミウム (mg/l) |
< 0.001 |
|
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
|
|
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
全シアン (mg/l) |
N |
|
|
N |
|
N |
|
N |
|
|
|
|
N |
|
N |
|
N |
|
N |
|
N |
|
N |
|
N |
|
N |
鉛 (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 |
六価クロム (mg/l) |
< 0.04 |
|
|
< 0.04 |
|
< 0.04 |
|
< 0.04 |
|
|
|
|
< 0.04 |
|
< 0.04 |
|
< 0.04 |
|
< 0.04 |
|
< 0.04 |
|
< 0.04 |
|
< 0.04 |
|
< 0.04 |
砒素 (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 |
総水銀 (mg/l) |
< 0.0005 |
|
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
|
|
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
PCB (mg/l) |
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
ジクロロメタン (mg/l) |
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
四塩化炭素 (mg/l) |
|
|
|
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
1,2-ジクロロエタン (mg/l) |
|
|
|
|
|
|
< 0.0004 |
|
|
|
|
|
|
|
|
|
|
< 0.0004 |
|
|
|
|
|
|
|
|
|
1,1-ジクロロエチレン (mg/l) |
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
シス-1,2-ジクロロエチレン (mg/l) |
|
|
|
|
|
|
< 0.004 |
|
|
|
|
|
|
|
|
|
|
< 0.004 |
|
|
|
|
|
|
|
|
|
1,1,1-トリクロロエタン (mg/l) |
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
1,1,2-トリクロロエタン (mg/l) |
|
|
|
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
1,3-ジクロロプロペン (mg/l) |
|
|
< 0.0002 |
|
|
|
|
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チウラム (mg/l) |
|
|
< 0.0006 |
|
|
|
|
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
シマジン (mg/l) |
|
|
< 0.0003 |
|
|
|
|
|
|
|
< 0.0003 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チオベンカルブ (mg/l) |
|
|
< 0.002 |
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ベンゼン (mg/l) |
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
セレン (mg/l) |
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
鉄(溶解性) (mg/l) |
|
|
0.23 |
|
|
|
0.19 |
|
|
|
|
|
|
0.13 |
|
|
|
0.13 |
|
|
|
0.12 |
|
|
|
0.10 |
|
アンモニア性窒素 (mg/l) |
|
|
< 0.1 |
|
|
|
< 0.1 |
|
|
|
|
|
|
< 0.1 |
|
|
|
< 0.1 |
|
|
|
0.2 |
|
|
|
0.1 |
|
透視度 |
> 30.0 |
18.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
塩化物イオン (mg/l) |
|
|
8 |
|
|
|
8 |
|
|
|
|
|
|
6 |
|
|
|
8 |
|
|
|
13 |
|
|
|
16 |
|
硫酸イオン (mg/l) |
|
|
14 |
|
|
|
18 |
|
|
|
|
|
|
13 |
|
|
|
12 |
|
|
|
20 |
|
|
|
20 |
|
酸度 (mg/l) |
|
|
4 |
|
|
|
2 |
|
|
|
|
|
|
2 |
|
|
|
2 |
|
|
|
1 |
|
|
|
2 |
|
アルカリ度 (mg/l) |
|
|
16 |
|
|
|
31 |
|
|
|
|
|
|
26 |
|
|
|
24 |
|
|
|
28 |
|
|
|
31 |
|