測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
01851 |
北上川(3) |
紫波橋 |
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 |
1335 |
0930 |
0915 |
1455 |
1420 |
0910 |
0925 |
1535 |
0125 |
0725 |
1325 |
1925 |
0942 |
1420 |
0915 |
1335 |
0915 |
0925 |
1425 |
1350 |
0925 |
1550 |
0935 |
1340 |
0915 |
0920 |
1425 |
天候 |
曇り |
晴れ |
曇り |
晴れ |
雨 |
曇り |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
雨 |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
晴れ |
曇り |
晴れ |
雪 |
晴れ |
晴れ |
雪 |
雪 |
曇り |
気温 (℃) |
20.4 |
12.5 |
16.9 |
20.4 |
16.6 |
19.8 |
24.0 |
24.0 |
18.0 |
17.6 |
19.7 |
18.9 |
20.4 |
23.7 |
21.9 |
20.2 |
13.5 |
5.5 |
13.0 |
6.3 |
-0.4 |
-1.2 |
0.5 |
7.8 |
5.3 |
0.5 |
8.9 |
水温 (℃) |
11.9 |
9.0 |
12.2 |
17.5 |
16.2 |
17.2 |
20.8 |
21.6 |
17.8 |
17.8 |
18.9 |
18.8 |
20.0 |
21.8 |
17.6 |
15.8 |
12.4 |
7.8 |
8.9 |
5.1 |
1.0 |
2.7 |
2.4 |
4.8 |
2.2 |
2.3 |
5.6 |
流量 (m3/s) |
144.97 |
142.95 |
104.05 |
107.49 |
107.49 |
112.76 |
97.34 |
118.15 |
140.97 |
110.99 |
129.31 |
129.31 |
100.67 |
102.36 |
137.02 |
114.54 |
52.91 |
59.17 |
48.16 |
52.91 |
41.45 |
49.33 |
90.86 |
67.14 |
44.74 |
84.59 |
149.02 |
採取水深 (m) |
0.5 |
0.6 |
0.5 |
0.4 |
0.4 |
0.6 |
0.5 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.6 |
0.4 |
0.6 |
0.5 |
0.5 |
0.4 |
0.3 |
0.3 |
0.5 |
0.3 |
0.4 |
0.4 |
0.5 |
0.5 |
0.5 |
全水深 (m) |
2.4 |
2.9 |
2.7 |
2.1 |
2.1 |
2.9 |
2.5 |
2.1 |
2.0 |
1.9 |
2.0 |
2.0 |
2.8 |
2.1 |
3.0 |
2.3 |
2.5 |
2.0 |
1.6 |
1.8 |
2.4 |
1.6 |
2.0 |
1.9 |
2.5 |
2.7 |
2.5 |
外観 |
無色澄明 |
無色澄明 |
無色澄明 |
微茶濁 |
無色澄明 |
微茶濁 |
微茶濁 |
微茶濁 |
濃白濁 |
濃白濁 |
濃白濁 |
濃白濁 |
微茶濁 |
白濁 |
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 |
白濁 |
白濁 |
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 |
7.4 |
7.0 |
7.4 |
7.5 |
7.2 |
7.3 |
7.6 |
7.4 |
7.4 |
7.4 |
7.5 |
7.4 |
7.8 |
7.5 |
7.7 |
7.5 |
7.4 |
7.7 |
7.6 |
7.4 |
7.7 |
7.3 |
7.5 |
7.3 |
7.4 |
7.5 |
DO (mg/l) |
11.4 |
11.5 |
9.9 |
10.0 |
9.5 |
9.0 |
8.8 |
8.6 |
8.6 |
8.6 |
8.6 |
8.6 |
8.0 |
9.1 |
9.0 |
10.1 |
10.6 |
11.3 |
11.9 |
12.8 |
13.4 |
13.1 |
13.1 |
13.1 |
12.5 |
12.3 |
12.9 |
BOD (mg/l) |
1.2 |
1.0 |
1.0 |
1.3 |
1.4 |
1.3 |
1.1 |
1.0 |
0.7 |
0.6 |
0.6 |
0.7 |
0.7 |
1.0 |
0.8 |
0.9 |
1.3 |
1.1 |
1.1 |
1.0 |
1.3 |
1.1 |
0.9 |
1.0 |
1.7 |
1.1 |
1.4 |
COD (mg/l) |
1.7 |
|
|
2.4 |
2.4 |
|
|
2.1 |
|
|
1.8 |
|
|
2.1 |
|
2.4 |
|
|
1.9 |
1.9 |
|
1.5 |
|
1.7 |
|
|
2.3 |
SS (mg/l) |
6 |
4 |
6 |
9 |
8 |
6 |
11 |
9 |
17 |
15 |
12 |
11 |
7 |
4 |
6 |
3 |
2 |
3 |
2 |
2 |
2 |
2 |
6 |
3 |
2 |
3 |
10 |
大腸菌群数 (MPN/100ml) |
2.2E+03 |
1.3E+03 |
7.9E+02 |
7.9E+03 |
2.4E+03 |
4.9E+03 |
4.9E+03 |
1.3E+04 |
4.9E+03 |
7.9E+03 |
7.9E+03 |
4.9E+03 |
1.3E+04 |
7.9E+03 |
2.4E+03 |
1.3E+04 |
2.4E+03 |
7.9E+02 |
2.3E+02 |
1.3E+02 |
7.9E+02 |
2.3E+02 |
1.7E+03 |
2.3E+02 |
3.3E+02 |
1.3E+03 |
2.3E+02 |
全窒素 (mg/l) |
|
|
|
1.80 |
|
|
|
1.70 |
|
|
|
|
|
1.30 |
|
|
|
|
1.20 |
|
|
1.70 |
|
|
|
|
1.70 |
全燐 (mg/l) |
|
|
|
0.073 |
|
|
|
0.069 |
|
|
|
|
|
0.052 |
|
|
|
|
0.017 |
|
|
0.053 |
|
|
|
|
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 |
< 0.002 |
|
|
< 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 |
|
|
|
|
0.1 |
ふっ素 (mg/l) |
|
|
|
|
< 0.1 |
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
アンモニア性窒素 (mg/l) |
|
|
|
0.3 |
|
|
|
0.2 |
|
|
|
|
|
0.2 |
|
|
|
|
0.2 |
|
|
0.7 |
|
|
|
|
0.4 |
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) |
|
|
|
7 |
|
|
|
7 |
|
|
|
|
|
7 |
|
|
|
|
7 |
|
|
10 |
|
|
|
|
9 |
硫酸イオン (mg/l) |
|
|
|
24 |
|
|
|
18 |
|
|
|
|
|
19 |
|
|
|
|
21 |
|
|
24 |
|
|
|
|
19 |
酸度 (mg/l) |
|
|
|
3 |
|
|
|
3 |
|
|
|
|
|
2 |
|
|
|
|
2 |
|
|
2 |
|
|
|
|
4 |
アルカリ度 (mg/l) |
|
|
|
23 |
|
|
|
29 |
|
|
|
|
|
31 |
|
|
|
|
32 |
|
|
35 |
|
|
|
|
32 |
ほう素 (mg/l) |
|
|
|
|
< 0.1 |
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.91 |
|
|
|
|
|
|
1.10 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|