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 |
2005.04.20 |
2005.04.26 |
2005.05.11 |
2005.05.25 |
2005.06.15 |
2005.06.27 |
2005.07.20 |
2005.07.26 |
2005.08.02 |
2005.08.02 |
2005.08.02 |
2005.08.02 |
2005.08.29 |
2005.09.14 |
2005.09.20 |
2005.10.05 |
2005.10.19 |
2005.11.09 |
2005.11.21 |
2005.12.07 |
2005.12.14 |
2006.01.11 |
2006.01.18 |
2006.02.08 |
2006.02.15 |
2006.03.01 |
2006.03.08 |
採取時刻 |
1100 |
0925 |
1120 |
0920 |
1120 |
0940 |
1115 |
0920 |
0000 |
0600 |
1200 |
1800 |
0950 |
0910 |
1120 |
1100 |
0950 |
1110 |
0940 |
1035 |
0930 |
0940 |
1140 |
1130 |
0930 |
0930 |
1105 |
天候 |
曇り |
曇り |
晴れ |
晴れ |
曇り |
雨 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
曇り |
曇り |
晴れ |
晴れ |
雨 |
晴れ |
晴れ |
雪 |
晴れ |
晴れ |
曇り |
曇り |
雪 |
晴れ |
気温 (℃) |
8.7 |
13.2 |
16.6 |
17.3 |
22.3 |
20.2 |
28 |
24.5 |
24.4 |
24.1 |
30.8 |
27.8 |
25.2 |
20.7 |
21.6 |
18.9 |
16.1 |
10.9 |
4.9 |
4 |
-1.4 |
1.6 |
-0.8 |
6.2 |
7.2 |
-0.4 |
5.9 |
水温 (℃) |
7.7 |
9 |
11.5 |
13 |
17.7 |
20 |
20.5 |
20.1 |
23 |
21.8 |
24.1 |
24.9 |
21 |
19 |
18.7 |
15.3 |
13.6 |
9.7 |
5.8 |
4.7 |
1.9 |
1 |
0.3 |
2 |
3.1 |
3 |
4.6 |
流量 (m3/s) |
164.75 |
148.29 |
128.93 |
156.41 |
83.41 |
47.77 |
69.06 |
74.64 |
77.51 |
71.82 |
63.7 |
73.22 |
61.1 |
89.53 |
81.92 |
66.35 |
|
125.22 |
46.64 |
44.42 |
|
|
|
|
50.07 |
105.78 |
76.07 |
採取水深 (m) |
0.29 |
0.44 |
0.41 |
0.44 |
0.41 |
0.29 |
0.41 |
0.31 |
0.41 |
0.41 |
0.41 |
0.41 |
0.29 |
0.35 |
0.41 |
0.41 |
0.29 |
0.47 |
0.27 |
0.35 |
0.25 |
0.17 |
0.36 |
0.29 |
0.31 |
0.34 |
0.41 |
全水深 (m) |
1.45 |
2.2 |
2.05 |
2.2 |
2.05 |
1.45 |
2.05 |
1.55 |
2.05 |
2.05 |
2.05 |
2.05 |
1.45 |
1.75 |
2.05 |
2.05 |
1.45 |
2.35 |
1.35 |
1.75 |
1.2 |
0.85 |
1.8 |
1.45 |
1.55 |
1.7 |
2.05 |
外観 |
無色澄明 |
微白濁 |
無色澄明 |
微白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
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 |
無色澄明 |
無色澄明 |
無色澄明 |
茶色 |
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 |
7.2 |
7.2 |
7.1 |
7.1 |
7.5 |
7.3 |
7.5 |
7.4 |
7.4 |
7.3 |
7.5 |
7.6 |
7.5 |
7.3 |
7.6 |
7.5 |
7.4 |
7.5 |
7.2 |
7.4 |
7.5 |
7.2 |
7.3 |
7.6 |
7.4 |
7.3 |
7.5 |
DO (mg/l) |
11 |
11 |
10 |
10 |
9.7 |
7.7 |
8.7 |
8.8 |
7.5 |
7.5 |
8.6 |
8.6 |
9 |
8.7 |
9.6 |
10 |
10 |
10 |
12 |
12 |
13 |
13 |
14 |
14 |
12 |
12 |
12 |
BOD (mg/l) |
0.7 |
0.8 |
0.9 |
0.8 |
1 |
1.2 |
0.8 |
1.1 |
1.1 |
1.1 |
1.1 |
1.1 |
0.7 |
1.2 |
0.8 |
1 |
0.8 |
1.3 |
0.8 |
0.6 |
0.7 |
1 |
1 |
1 |
1.5 |
0.9 |
0.7 |
COD (mg/l) |
1.6 |
|
1.9 |
|
2.2 |
|
1.7 |
|
|
|
2.3 |
|
|
|
2 |
1.9 |
|
3 |
|
1.5 |
|
|
2 |
2.3 |
|
|
2.3 |
SS (mg/l) |
3 |
3 |
5 |
6 |
4 |
6 |
3 |
2 |
4 |
3 |
3 |
3 |
4 |
4 |
3 |
3 |
1 |
4 |
1 |
1 |
1 |
1 |
1 |
1 |
12 |
5 |
2 |
大腸菌群数 (MPN/100ml) |
1.1E+03 |
1.7E+03 |
1.1E+03 |
7.9E+02 |
1.7E+03 |
3.3E+03 |
4.9E+03 |
4.9E+02 |
2.2E+03 |
1.1E+03 |
3.3E+03 |
2.4E+03 |
4.9E+03 |
7.9E+03 |
1.1E+04 |
7.9E+02 |
4.9E+03 |
4.9E+03 |
4.9E+02 |
7.9E+02 |
4.9E+02 |
3.3E+02 |
3.3E+02 |
4.9E+02 |
1.1E+03 |
7.9E+02 |
3.3E+02 |
全窒素 (mg/l) |
|
|
0.8 |
|
|
|
1.3 |
|
|
|
|
|
|
|
0.94 |
|
|
0.99 |
|
|
|
|
1.5 |
|
|
|
1.6 |
全燐 (mg/l) |
|
|
0.028 |
|
|
|
0.041 |
|
|
|
|
|
|
|
0.031 |
|
|
0.036 |
|
|
|
|
0.032 |
|
|
|
0.043 |
全亜鉛 (mg/l) |
|
|
< 0.01 |
|
|
|
< 0.01 |
|
|
|
|
|
|
|
< 0.01 |
|
|
< 0.01 |
|
|
|
|
< 0.01 |
|
|
|
< 0.01 |
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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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) |
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
|
|
|
|
テトラクロロエチレン (mg/l) |
|
|
|
|
< 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 |
|
|
|
|
|
|
|
|
|
亜鉛 (mg/l) |
|
|
< 0.01 |
|
|
|
< 0.01 |
|
|
|
|
|
|
|
< 0.01 |
|
|
< 0.01 |
|
|
|
|
< 0.01 |
|
|
|
< 0.01 |
鉄(溶解性) (mg/l) |
|
|
0.11 |
|
|
|
0.1 |
|
|
|
|
|
|
|
0.1 |
|
|
0.11 |
|
|
|
|
0.1 |
|
|
|
0.11 |
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 |
|
|
|
|
0.4 |
|
|
|
0.2 |
透視度 |
> 100 |
> 100 |
96 |
97 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
94 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
74 |
> 100 |
> 100 |
塩化物イオン (mg/l) |
|
|
5 |
|
|
|
9 |
|
|
|
|
|
|
|
6 |
|
|
8 |
|
|
|
|
9 |
|
|
|
8 |
酸度 (mg/l) |
|
|
3 |
|
|
|
3 |
|
|
|
|
|
|
|
3 |
|
|
3 |
|
|
|
|
4 |
|
|
|
3 |
アルカリ度 (mg/l) |
|
|
16 |
|
|
|
31 |
|
|
|
|
|
|
|
28 |
|
|
30 |
|
|
|
|
36 |
|
|
|
30 |
鉄(2価) (mg/l) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
ほう素 (mg/l) |
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
|
1.3 |
|
|
|
|
|
|
|
|
|
|
|
|
0.8 |
|
|
|
|
|
|
|
|
|