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 |
2003.04.11 |
2003.04.23 |
2003.05.07 |
2003.05.21 |
2003.06.12 |
2003.06.23 |
2003.07.02 |
2003.07.16 |
2003.08.07 |
2003.08.29 |
2003.09.11 |
2003.09.11 |
2003.09.11 |
2003.09.11 |
2003.09.17 |
2003.10.01 |
2003.10.15 |
2003.11.05 |
2003.11.19 |
2003.12.03 |
2003.12.17 |
2004.01.07 |
2004.01.21 |
2004.02.04 |
2004.02.18 |
2004.03.03 |
2004.03.10 |
採取時刻 |
1135 |
1210 |
1220 |
1210 |
1155 |
1200 |
1215 |
1220 |
1240 |
1150 |
0200 |
0800 |
1400 |
2000 |
1125 |
1130 |
1200 |
1200 |
1150 |
1125 |
1140 |
1202 |
1200 |
1150 |
1130 |
1220 |
1150 |
天候 |
晴れ |
雨 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
雨 |
曇り |
曇り |
晴れ |
雨 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
気温 (℃) |
14.7 |
8.9 |
22 |
24 |
19.3 |
23 |
25.7 |
25.3 |
27.3 |
30.5 |
21.1 |
21.6 |
25.3 |
22.4 |
24.5 |
22 |
13.5 |
14.7 |
11.1 |
8.9 |
7.2 |
2 |
1.6 |
3.1 |
2.4 |
0.8 |
11.2 |
水温 (℃) |
8 |
8.8 |
16 |
17.3 |
19 |
21.9 |
18 |
18.3 |
22.9 |
20 |
18.9 |
18 |
19 |
18 |
19.2 |
16.5 |
14 |
12.3 |
8 |
7.5 |
5.6 |
2.7 |
3.1 |
3 |
3 |
2.2 |
5.9 |
流量 (m3/s) |
459.85 |
594.42 |
378.83 |
231.94 |
213.59 |
104.94 |
340.01 |
363.05 |
196 |
561.59 |
631.62 |
668.64 |
702.92 |
679.26 |
340.01 |
190.31 |
227.79 |
139.59 |
175.53 |
340.01 |
312.87 |
223.69 |
171.93 |
217.6 |
223.69 |
277.68 |
227.79 |
採取水深 (m) |
0.84 |
0.9 |
0.77 |
0.56 |
0.61 |
0.1 |
0.73 |
0.74 |
0.6 |
0.89 |
1 |
0.95 |
0.97 |
0.95 |
0.71 |
0.58 |
0.62 |
0.5 |
0.54 |
0.71 |
0.69 |
0.61 |
0.52 |
0.59 |
0.62 |
0.63 |
0.6 |
全水深 (m) |
4.2 |
4.5 |
3.85 |
2.8 |
3.05 |
0.5 |
3.65 |
3.7 |
3 |
4.45 |
5 |
4.75 |
4.85 |
4.75 |
3.55 |
2.9 |
3.1 |
2.5 |
2.7 |
3.55 |
3.45 |
3.05 |
2.6 |
3.95 |
3.1 |
3.15 |
3 |
外観 |
無色澄明 |
微白濁 |
白濁 |
無色澄明 |
茶色 |
茶色 |
微白濁 |
茶色 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
茶色 |
茶色 |
微白濁 |
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 |
微白濁 |
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 |
7 |
7.1 |
7.3 |
7.4 |
7.5 |
7.5 |
7.3 |
7.4 |
7.4 |
7.4 |
7.2 |
7.3 |
7.3 |
7.4 |
7.5 |
7.5 |
7.7 |
7.4 |
7.4 |
7.2 |
7.3 |
7.5 |
7.5 |
7.3 |
7.3 |
7.3 |
DO (mg/l) |
11.7 |
11.5 |
9.8 |
9.1 |
8.7 |
8.6 |
8.8 |
8.7 |
8.2 |
8.5 |
8.7 |
8.7 |
8.8 |
9 |
8.7 |
9.4 |
9.5 |
10.6 |
11.8 |
11.3 |
12.1 |
13.4 |
12.9 |
13.2 |
12.5 |
13 |
12.1 |
BOD (mg/l) |
0.9 |
0.6 |
0.7 |
1 |
1.4 |
1.1 |
1 |
0.8 |
0.9 |
0.5 |
0.5 |
0.6 |
0.5 |
0.7 |
0.6 |
0.5 |
1.3 |
1.3 |
1.2 |
0.6 |
0.7 |
1.2 |
1.3 |
1.1 |
1.4 |
0.7 |
1.4 |
COD (mg/l) |
2.2 |
|
2.7 |
|
3.3 |
|
2.7 |
|
|
3.1 |
|
|
3.3 |
|
|
2.1 |
|
3 |
|
2 |
|
|
2.2 |
|
3.4 |
|
2.7 |
SS (mg/l) |
9 |
13 |
17 |
9 |
12 |
6 |
15 |
9 |
7 |
16 |
14 |
15 |
20 |
17 |
5 |
2 |
10 |
7 |
6 |
7 |
4 |
4 |
5 |
6 |
12 |
5 |
6 |
大腸菌群数 (MPN/100ml) |
7.9E+02 |
4.9E+03 |
2.2E+03 |
3.3E+03 |
7.0E+02 |
7.0E+02 |
7.9E+03 |
2.8E+03 |
7.9E+03 |
7.9E+03 |
4.9E+03 |
1.1E+04 |
1.1E+04 |
1.1E+04 |
1.1E+03 |
4.9E+03 |
1.1E+04 |
1.1E+03 |
7.9E+02 |
1.1E+03 |
7.9E+02 |
7.9E+02 |
3.3E+03 |
3.3E+03 |
2.2E+03 |
3.3E+02 |
7.9E+02 |
全窒素 (mg/l) |
|
|
0.97 |
|
|
|
0.94 |
|
|
0.82 |
|
|
|
|
|
|
|
0.92 |
|
|
|
|
0.96 |
|
|
|
1.2 |
全燐 (mg/l) |
|
|
0.083 |
|
|
|
0.074 |
|
|
0.063 |
|
|
|
|
|
|
|
0.078 |
|
|
|
|
0.098 |
|
|
|
0.057 |
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) |
< 0.02 |
|
< 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) |
|
|
0.25 |
|
|
|
0.14 |
|
|
0.15 |
|
|
|
|
|
|
|
0.11 |
|
|
|
|
0.09 |
|
|
|
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 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
塩化物イオン (mg/l) |
|
|
6 |
|
|
|
11 |
|
|
5 |
|
|
|
|
|
|
|
10 |
|
|
|
|
12 |
|
|
|
16 |
硫酸イオン (mg/l) |
|
|
12 |
|
|
|
14 |
|
|
11 |
|
|
|
|
|
|
|
20 |
|
|
|
|
14 |
|
|
|
17 |
酸度 (mg/l) |
|
|
3 |
|
|
|
2.5 |
|
|
3.8 |
|
|
|
|
|
|
|
2 |
|
|
|
|
2.5 |
|
|
|
3.8 |
アルカリ度 (mg/l) |
|
|
18 |
|
|
|
25 |
|
|
27 |
|
|
|
|
|
|
|
34 |
|
|
|
|
29 |
|
|
|
26 |
ほう素 (mg/l) |
|
|
|
|
< 0.1 |
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
|
0.66 |
|
|
|
|
0.64 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|