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 |
2007.04.17 |
2007.04.26 |
2007.05.10 |
2007.05.16 |
2007.06.03 |
2007.06.20 |
2007.07.04 |
2007.07.18 |
2007.08.01 |
2007.08.01 |
2007.08.01 |
2007.08.01 |
2007.08.21 |
2007.09.05 |
2007.09.25 |
2007.10.03 |
2007.10.17 |
2007.11.07 |
2007.11.21 |
2007.12.05 |
2007.12.19 |
2008.01.16 |
2008.01.23 |
2008.02.13 |
2008.02.20 |
2008.03.12 |
2008.03.19 |
採取時刻 |
0855 |
0930 |
0855 |
0837 |
0824 |
0830 |
0910 |
0830 |
0000 |
0600 |
1200 |
1800 |
0830 |
0845 |
1130 |
0830 |
0830 |
0840 |
0840 |
0840 |
0835 |
0840 |
0830 |
0850 |
0830 |
0840 |
0830 |
天候 |
曇り |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
曇り |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
雪 |
曇り |
晴れ |
曇り |
晴れ |
雪 |
晴れ |
晴れ |
気温 (℃) |
7.9 |
11.2 |
17 |
17.8 |
17.2 |
21.4 |
22 |
17.4 |
16.1 |
17.8 |
26.3 |
27.2 |
22.5 |
25.1 |
22.1 |
17 |
13.1 |
6.6 |
1.8 |
0.9 |
-0.2 |
-1.7 |
-3.6 |
-1.8 |
0 |
3.9 |
5.3 |
水温 (℃) |
6.3 |
8.9 |
11.2 |
11.5 |
14.7 |
19.2 |
19 |
18.3 |
21.4 |
20 |
21.9 |
25.4 |
21.8 |
20.8 |
17.9 |
15.9 |
13.3 |
9.3 |
6 |
3.5 |
3.7 |
1.4 |
2.5 |
0.9 |
2.3 |
4 |
5.3 |
流量 (m3/s) |
178.04 |
272.51 |
171.26 |
145.45 |
119.87 |
63.28 |
79.13 |
54.11 |
50.09 |
46.91 |
42.83 |
47.95 |
62.64 |
72.64 |
115.13 |
68.8 |
54.49 |
54.49 |
86.19 |
59.07 |
55.62 |
55.62 |
51.17 |
65.07 |
53.37 |
111.89 |
155.75 |
採取水深 (m) |
0.44 |
0.5 |
0.44 |
0.42 |
0.39 |
0.32 |
0.37 |
0.34 |
0.33 |
0.33 |
0.34 |
0.34 |
0.4 |
0.34 |
0.42 |
0.36 |
0.34 |
0.34 |
0.39 |
0.33 |
0.34 |
0.34 |
0.33 |
0.34 |
0.34 |
0.43 |
0.47 |
全水深 (m) |
2.2 |
2.5 |
2.2 |
2.1 |
1.95 |
1.6 |
1.85 |
1.72 |
1.65 |
1.65 |
1.7 |
1.7 |
2 |
1.7 |
2.1 |
1.8 |
1.7 |
1.7 |
1.95 |
1.65 |
1.7 |
1.7 |
1.65 |
1.7 |
1.7 |
2.15 |
2.35 |
外観 |
無色澄明 |
微白濁 |
微白濁 |
無色澄明 |
無色澄明 |
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 |
茶色 |
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 |
無色澄明 |
無色澄明 |
無色澄明 |
微白濁 |
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 |
7.4 |
7.1 |
7.2 |
7.2 |
7.3 |
7.4 |
7.5 |
7.3 |
7.4 |
7.3 |
7.6 |
7.6 |
7.4 |
7.5 |
7.3 |
7.4 |
7.4 |
7.4 |
7.3 |
7.4 |
7.2 |
7.2 |
7.2 |
7.3 |
7.3 |
7.4 |
7.4 |
DO (mg/l) |
12 |
11 |
10 |
10 |
10 |
8.9 |
8.6 |
8.9 |
7.7 |
7.5 |
9.4 |
8.5 |
8.1 |
8.7 |
9.2 |
9.7 |
9.8 |
10 |
11 |
12 |
12 |
13 |
13 |
13 |
13 |
13 |
12 |
BOD (mg/l) |
0.6 |
1.1 |
1.0 |
0.8 |
1.1 |
1.0 |
1.1 |
1.1 |
1.6 |
1.3 |
1.2 |
1.5 |
1.0 |
1.2 |
0.6 |
0.6 |
1.3 |
0.9 |
0.7 |
0.7 |
0.7 |
0.7 |
1.2 |
1.2 |
1.1 |
0.8 |
0.9 |
COD (mg/l) |
1.7 |
|
|
2.0 |
2.3 |
|
3.3 |
|
|
|
2.6 |
|
|
2.6 |
|
1.4 |
|
2.0 |
|
2.0 |
|
2.0 |
|
2.5 |
|
2.0 |
|
SS (mg/l) |
4 |
8 |
7 |
6 |
5 |
3 |
9 |
4 |
16 |
5 |
3 |
4 |
5 |
3 |
9 |
3 |
2 |
1 |
4 |
1 |
1 |
2 |
1 |
2 |
1 |
5 |
6 |
大腸菌群数 (MPN/100ml) |
490 |
1700 |
2400 |
790 |
490 |
220 |
2400 |
1100 |
3300 |
4900 |
2400 |
1700 |
490 |
1300 |
7900 |
1700 |
1700 |
790 |
790 |
700 |
330 |
490 |
240 |
490 |
170 |
1300 |
790 |
全窒素 (mg/l) |
|
|
|
0.97 |
|
|
1.3 |
|
|
|
|
|
|
1.0 |
|
|
|
1.6 |
|
|
|
1.7 |
|
|
|
1.0 |
|
全燐 (mg/l) |
|
|
|
0.033 |
|
|
0.068 |
|
|
|
|
|
|
0.039 |
|
|
|
0.022 |
|
|
|
0.069 |
|
|
|
0.032 |
|
全亜鉛 (mg/l) |
< 0.005 |
|
|
0.005 |
< 0.005 |
|
0.008 |
|
|
|
0.005 |
|
|
0.005 |
|
0.006 |
|
0.007 |
|
0.006 |
|
0.008 |
|
0.012 |
|
< 0.005 |
|
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) |
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
|
|
< 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 |
|
|
|
|
|
|
|
|
|
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) |
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
鉄(溶解性) (mg/l) |
|
|
|
0.3 |
|
|
0.3 |
|
|
|
|
|
|
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 |
|
|
0.2 |
|
|
|
|
|
|
0.1 |
|
|
|
0.3 |
|
|
|
0.3 |
|
|
|
0.1 |
|
透視度 |
> 100 |
83 |
68 |
70 |
> 100 |
> 100 |
72 |
> 100 |
62 |
> 100 |
> 100 |
> 100 |
92 |
> 100 |
51 |
94 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
93 |
塩化物イオン (mg/l) |
|
|
|
5 |
|
|
8 |
|
|
|
|
|
|
7 |
|
|
|
10 |
|
|
|
9 |
|
|
|
9 |
|
酸度 (mg/l) |
|
|
|
3 |
|
|
3 |
|
|
|
|
|
|
3 |
|
|
|
4 |
|
|
|
5 |
|
|
|
4 |
|
アルカリ度 (mg/l) |
|
|
|
18 |
|
|
34 |
|
|
|
|
|
|
30 |
|
|
|
36 |
|
|
|
33 |
|
|
|
31 |
|
ほう素 (mg/l) |
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
|
0.67 |
|
|
|
|
|
|
|
|
|
|
|
|
1.1 |
|
|
|
|
|
|
|
|
|