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 |
2002.04.10 |
2002.04.17 |
2002.05.01 |
2002.05.15 |
2002.06.05 |
2002.06.19 |
2002.07.03 |
2002.07.30 |
2002.08.27 |
2002.08.27 |
2002.08.27 |
2002.08.27 |
2002.08.30 |
2002.09.10 |
2002.09.25 |
2002.10.09 |
2002.10.17 |
2002.11.06 |
2002.11.20 |
2002.12.04 |
2002.12.11 |
2003.01.08 |
2003.01.15 |
2003.02.05 |
2003.02.12 |
2003.03.05 |
2003.03.12 |
採取時刻 |
1120 |
1150 |
1200 |
1150 |
1130 |
1208 |
1148 |
1215 |
0245 |
0845 |
1445 |
2045 |
1135 |
1200 |
1200 |
1130 |
1140 |
1155 |
1140 |
1115 |
1150 |
1140 |
1135 |
1140 |
1125 |
1210 |
1140 |
天候 |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
晴れ |
曇り |
曇り |
晴れ |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
気温 (℃) |
12.5 |
22.3 |
19.5 |
19.2 |
25.3 |
24.1 |
20.7 |
31.4 |
20.5 |
23.0 |
29.4 |
23.9 |
28.1 |
28.0 |
20.5 |
18.6 |
21.9 |
9.1 |
7.8 |
3.8 |
1.7 |
3.5 |
-0.7 |
1.9 |
1.7 |
3.5 |
4.0 |
水温 (℃) |
7.2 |
11.6 |
11.7 |
13.7 |
19.2 |
19.0 |
18.2 |
24.5 |
19.1 |
19.3 |
20.6 |
20.1 |
23.8 |
22.2 |
17.9 |
16.0 |
15.9 |
7.8 |
5.0 |
5.0 |
3.1 |
1.5 |
1.8 |
2.2 |
2.5 |
2.0 |
3.0 |
流量 (m3/s) |
640.34 |
658.41 |
319.99 |
282.60 |
206.44 |
277.79 |
376.24 |
188.28 |
492.97 |
491.00 |
431.05 |
419.20 |
332.97 |
214.78 |
194.24 |
376.23 |
319.99 |
335.59 |
332.97 |
359.70 |
270.65 |
182.41 |
210.59 |
221.14 |
270.65 |
294.80 |
277.79 |
採取水深 (m) |
1.2 |
1.1 |
0.7 |
0.9 |
0.9 |
0.9 |
1.0 |
0.9 |
1.1 |
1.1 |
1.1 |
1.1 |
1.0 |
1.0 |
0.7 |
1.1 |
1.0 |
1.0 |
1.0 |
1.0 |
0.9 |
0.8 |
0.7 |
0.6 |
0.9 |
0.7 |
0.7 |
全水深 (m) |
5.9 |
5.4 |
3.6 |
4.5 |
4.5 |
4.6 |
4.8 |
4.3 |
5.5 |
5.5 |
5.5 |
5.6 |
5.2 |
4.8 |
3.6 |
5.3 |
5.2 |
5.0 |
5.0 |
4.9 |
4.5 |
4.2 |
3.5 |
3.1 |
4.6 |
3.5 |
3.3 |
外観 |
白濁 |
白濁 |
濃白濁 |
茶濁 |
茶濁 |
茶濁 |
茶濁 |
無色澄明 |
白濁 |
白濁 |
白濁 |
白濁 |
白濁 |
無色澄明 |
無色澄明 |
茶濁 |
茶濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
白濁 |
無色澄明 |
白濁 |
白濁 |
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 |
7.2 |
7.1 |
7.2 |
7.1 |
8.0 |
7.5 |
7.4 |
7.7 |
7.3 |
7.3 |
7.4 |
7.5 |
7.4 |
7.6 |
7.5 |
7.4 |
7.4 |
7.2 |
7.2 |
7.3 |
7.3 |
7.4 |
7.8 |
7.4 |
7.3 |
7.3 |
7.5 |
DO (mg/l) |
11.5 |
10.8 |
10.2 |
9.4 |
9.3 |
8.3 |
8.5 |
9.1 |
8.6 |
8.6 |
8.7 |
8.7 |
8.2 |
8.8 |
9.3 |
9.4 |
9.2 |
11.3 |
12.3 |
11.8 |
12.6 |
13.9 |
13.0 |
13.5 |
12.8 |
13.4 |
13.0 |
BOD (mg/l) |
0.5 |
0.9 |
1.3 |
1.0 |
1.7 |
1.6 |
1.7 |
1.4 |
0.8 |
0.6 |
0.6 |
0.7 |
0.7 |
1.1 |
1.3 |
0.6 |
1.3 |
0.5 |
0.8 |
0.5 |
0.8 |
1.4 |
1.4 |
1.2 |
1.2 |
1.0 |
1.1 |
COD (mg/l) |
2.1 |
|
|
3.3 |
3.1 |
|
|
2.9 |
|
|
1.8 |
|
|
2.0 |
|
|
3.7 |
1.9 |
|
1.8 |
|
|
4.5 |
|
3.6 |
|
1.9 |
SS (mg/l) |
13 |
12 |
19 |
10 |
8 |
19 |
24 |
5 |
12 |
12 |
11 |
13 |
8 |
4 |
8 |
15 |
18 |
5 |
4 |
3 |
2 |
2 |
10 |
4 |
7 |
8 |
8 |
大腸菌群数 (MPN/100ml) |
1.7E+03 |
2.4E+03 |
4.9E+03 |
7.9E+03 |
4.9E+03 |
1.1E+04 |
7.9E+03 |
7.9E+03 |
1.3E+04 |
1.3E+04 |
7.9E+03 |
1.3E+04 |
2.4E+04 |
7.9E+03 |
4.9E+03 |
2.4E+03 |
4.9E+04 |
1.7E+03 |
1.3E+04 |
2.4E+04 |
1.3E+04 |
4.9E+04 |
7.9E+04 |
7.9E+03 |
7.9E+03 |
2.2E+04 |
7.9E+03 |
全窒素 (mg/l) |
|
|
|
0.92 |
|
|
|
1.27 |
|
|
|
|
|
0.79 |
|
|
|
0.85 |
|
|
|
|
1.26 |
|
|
|
1.05 |
全燐 (mg/l) |
|
|
|
0.074 |
|
|
|
0.048 |
|
|
|
|
|
0.037 |
|
|
|
0.032 |
|
|
|
|
0.080 |
|
|
|
0.049 |
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) |
< 0.002 |
|
|
< 0.002 |
< 0.002 |
|
|
< 0.002 |
|
|
< 0.002 |
|
|
< 0.002 |
|
|
< 0.002 |
< 0.002 |
|
< 0.002 |
|
|
< 0.002 |
|
< 0.002 |
|
< 0.002 |
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 |
アルキル水銀 (mg/l) |
N |
|
|
N |
N |
|
|
N |
|
|
N |
|
|
N |
|
|
N |
N |
|
N |
|
|
N |
|
N |
|
N |
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 |
|
|
|
0.1 |
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) |
|
|
|
8 |
|
|
|
9 |
|
|
|
|
|
8 |
|
|
|
7 |
|
|
|
|
11 |
|
|
|
9 |
硫酸イオン (mg/l) |
|
|
|
14 |
|
|
|
17 |
|
|
|
|
|
16 |
|
|
|
13 |
|
|
|
|
19 |
|
|
|
15 |
酸度 (mg/l) |
|
|
|
4 |
|
|
|
2 |
|
|
|
|
|
3 |
|
|
|
4 |
|
|
|
|
2 |
|
|
|
3 |
アルカリ度 (mg/l) |
|
|
|
20 |
|
|
|
33 |
|
|
|
|
|
30 |
|
|
|
26 |
|
|
|
|
30 |
|
|
|
28 |
ほう素 (mg/l) |
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.75 |
|
|
|
|
|
|
0.79 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|