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 |
2001.04.12 |
2001.04.25 |
2001.05.16 |
2001.05.28 |
2001.06.06 |
2001.06.25 |
2001.07.09 |
2001.07.27 |
2001.08.07 |
2001.08.07 |
2001.08.07 |
2001.08.07 |
2001.08.29 |
2001.09.05 |
2001.09.19 |
2001.10.03 |
2001.10.24 |
2001.11.12 |
2001.11.21 |
2001.12.05 |
2001.12.19 |
2002.01.09 |
2002.01.25 |
2002.02.06 |
2002.02.20 |
2002.03.06 |
2002.03.13 |
採取時刻 |
1130 |
1150 |
1120 |
1220 |
1125 |
1115 |
1140 |
1205 |
0245 |
0845 |
1445 |
2045 |
1250 |
1140 |
1125 |
1125 |
1135 |
1135 |
1155 |
1115 |
1220 |
1230 |
1039 |
1135 |
1140 |
1140 |
1130 |
天候 |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
雨 |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
雪 |
晴れ |
晴れ |
晴れ |
雨 |
晴れ |
気温 (℃) |
20.5 |
16.1 |
18.6 |
21.6 |
22.1 |
20.8 |
28.6 |
22.7 |
18.4 |
20.3 |
21.2 |
18.9 |
24.7 |
23.3 |
21.2 |
19.3 |
18.2 |
10.2 |
14.8 |
6.3 |
2.0 |
1.6 |
2.1 |
10.2 |
8.4 |
3.8 |
8.1 |
水温 (℃) |
9.6 |
9.8 |
15.9 |
17.0 |
19.2 |
18.6 |
22.0 |
23.5 |
18.9 |
19.0 |
19.1 |
19.0 |
21.2 |
19.8 |
18.2 |
15.8 |
15.0 |
9.0 |
7.4 |
4.7 |
1.7 |
2.0 |
2.0 |
4.0 |
3.3 |
4.4 |
5.0 |
流量 (m3/s) |
863.87 |
509.54 |
324.20 |
154.88 |
208.25 |
343.55 |
258.75 |
154.88 |
346.01 |
346.01 |
326.59 |
300.80 |
381.34 |
276.07 |
457.17 |
273.88 |
175.28 |
163.23 |
196.94 |
196.94 |
178.80 |
206.34 |
443.13 |
235.86 |
212.09 |
223.82 |
402.31 |
採取水深 (m) |
1.3 |
0.8 |
0.9 |
0.7 |
0.8 |
0.9 |
0.8 |
0.5 |
0.9 |
0.9 |
0.9 |
1.1 |
0.9 |
0.9 |
1.1 |
0.9 |
0.7 |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
1.0 |
0.8 |
0.8 |
0.8 |
1.0 |
全水深 (m) |
6.3 |
4.2 |
4.3 |
3.5 |
3.8 |
4.4 |
4.2 |
2.6 |
4.7 |
4.6 |
4.5 |
5.3 |
4.8 |
4.5 |
5.5 |
4.5 |
3.5 |
3.8 |
4.0 |
4.0 |
4.0 |
4.0 |
4.9 |
4.0 |
3.9 |
4.1 |
5.0 |
外観 |
茶濁 |
無色澄明 |
白濁 |
無色澄明 |
無色澄明 |
微茶濁 |
微茶濁 |
微茶濁 |
濃白濁 |
濃白濁 |
濃白濁 |
白濁 |
茶濁 |
白濁 |
白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
微茶濁 |
茶濁 |
無色澄明 |
無色澄明 |
無色澄明 |
微茶濁 |
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 |
7.2 |
7.3 |
7.0 |
7.4 |
7.4 |
7.3 |
7.4 |
7.5 |
7.4 |
7.4 |
7.4 |
7.4 |
7.4 |
7.5 |
7.4 |
7.5 |
7.7 |
7.5 |
7.4 |
7.7 |
7.5 |
7.6 |
7.4 |
7.2 |
7.4 |
7.4 |
7.2 |
DO (mg/l) |
10.8 |
10.9 |
9.1 |
9.1 |
8.5 |
8.4 |
8.1 |
7.9 |
8.4 |
8.3 |
8.3 |
8.4 |
8.4 |
8.5 |
8.8 |
9.1 |
10.1 |
11.4 |
11.9 |
12.6 |
13.8 |
12.5 |
12.9 |
12.8 |
12.8 |
12.4 |
12.1 |
BOD (mg/l) |
1.4 |
1.0 |
1.4 |
1.0 |
1.2 |
1.2 |
1.2 |
0.8 |
0.5 |
0.6 |
0.7 |
0.7 |
0.9 |
0.8 |
0.9 |
0.7 |
1.2 |
0.9 |
0.9 |
1.0 |
1.0 |
1.9 |
1.2 |
0.9 |
1.3 |
1.4 |
1.2 |
COD (mg/l) |
3.9 |
|
|
2.9 |
3.0 |
|
|
2.3 |
|
|
1.7 |
|
|
2.3 |
|
2.5 |
|
|
2.1 |
2.4 |
|
3.4 |
|
1.9 |
|
|
3.4 |
SS (mg/l) |
50 |
8 |
14 |
5 |
9 |
14 |
19 |
11 |
21 |
13 |
19 |
20 |
20 |
9 |
14 |
5 |
3 |
3 |
3 |
5 |
4 |
11 |
18 |
6 |
6 |
5 |
15 |
大腸菌群数 (MPN/100ml) |
1.3E+03 |
1.1E+03 |
4.9E+03 |
7.9E+04 |
3.3E+03 |
1.3E+04 |
1.3E+04 |
1.3E+03 |
1.3E+04 |
1.3E+04 |
2.4E+04 |
7.9E+03 |
3.3E+04 |
7.9E+03 |
1.3E+04 |
3.3E+03 |
7.9E+03 |
7.9E+03 |
7.9E+03 |
7.9E+03 |
1.7E+03 |
2.4E+04 |
1.7E+04 |
7.9E+03 |
1.7E+03 |
4.9E+04 |
3.3E+03 |
全窒素 (mg/l) |
|
|
|
1.50 |
|
|
|
1.60 |
|
|
|
|
|
0.88 |
|
|
|
|
0.82 |
|
|
1.20 |
|
|
|
|
1.20 |
全燐 (mg/l) |
|
|
|
0.056 |
|
|
|
0.062 |
|
|
|
|
|
0.040 |
|
|
|
|
0.026 |
|
|
0.065 |
|
|
|
|
0.071 |
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 |
|
|
< 0.002 |
|
|
< 0.005 |
|
|
< 0.005 |
|
< 0.005 |
|
|
< 0.005 |
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
|
< 0.005 |
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) |
< 0.001 |
|
|
< 0.001 |
< 0.001 |
|
|
< 0.001 |
|
|
< 0.001 |
|
|
< 0.001 |
|
< 0.001 |
|
|
< 0.001 |
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
|
< 0.001 |
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) |
|
|
|
0.1 |
|
|
|
0.1 |
|
|
|
|
|
0.1 |
|
|
|
|
< 0.1 |
|
|
0.1 |
|
|
|
|
0.2 |
ふっ素 (mg/l) |
|
|
|
|
< 0.1 |
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
アンモニア性窒素 (mg/l) |
|
|
|
< 0.1 |
|
|
|
< 0.1 |
|
|
|
|
|
< 0.1 |
|
|
|
|
< 0.1 |
|
|
0.1 |
|
|
|
|
0.1 |
透視度 |
> 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 |
> 30.0 |
> 30.0 |
塩化物イオン (mg/l) |
|
|
|
11 |
|
|
|
8 |
|
|
|
|
|
8 |
|
|
|
|
9 |
|
|
12 |
|
|
|
|
9 |
硫酸イオン (mg/l) |
|
|
|
19 |
|
|
|
17 |
|
|
|
|
|
16 |
|
|
|
|
17 |
|
|
18 |
|
|
|
|
12 |
酸度 (mg/l) |
|
|
|
3 |
|
|
|
3 |
|
|
|
|
|
3 |
|
|
|
|
3 |
|
|
3 |
|
|
|
|
3 |
アルカリ度 (mg/l) |
|
|
|
24 |
|
|
|
31 |
|
|
|
|
|
30 |
|
|
|
|
28 |
|
|
32 |
|
|
|
|
23 |
ほう素 (mg/l) |
|
|
|
|
< 0.1 |
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.96 |
|
|
|
|
|
|
0.81 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|