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 |
1999.04.14 |
1999.04.28 |
1999.05.12 |
1999.05.19 |
1999.06.02 |
1999.06.16 |
1999.07.07 |
1999.07.21 |
1999.08.03 |
1999.08.03 |
1999.08.03 |
1999.08.03 |
1999.08.18 |
1999.09.03 |
1999.09.14 |
1999.10.06 |
1999.10.20 |
1999.11.10 |
1999.11.17 |
1999.12.01 |
1999.12.15 |
2000.01.12 |
2000.01.19 |
2000.02.02 |
2000.02.16 |
2000.03.01 |
2000.03.13 |
採取時刻 |
1000 |
0935 |
1005 |
0920 |
0940 |
0930 |
0940 |
0920 |
0135 |
0735 |
1335 |
1935 |
0940 |
0910 |
0945 |
0920 |
0930 |
0950 |
0920 |
0945 |
0928 |
0918 |
0946 |
0945 |
0920 |
0940 |
0925 |
天候 |
雨 |
曇り |
晴れ |
曇り |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
雨 |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
気温 (℃) |
9.5 |
17.3 |
14.6 |
17.0 |
23.7 |
21.7 |
17.1 |
24.7 |
25.3 |
25.4 |
31.0 |
27.3 |
30.1 |
23.5 |
22.0 |
15.7 |
10.6 |
8.9 |
5.0 |
5.4 |
-1.8 |
-1.2 |
-1.7 |
5.3 |
-1.6 |
1.4 |
1.1 |
水温 (℃) |
7.5 |
11.1 |
13.0 |
12.2 |
14.1 |
19.1 |
17.0 |
19.5 |
25.8 |
23.0 |
27.8 |
27.5 |
24.2 |
18.4 |
19.0 |
14.2 |
12.4 |
9.2 |
7.9 |
6.1 |
3.0 |
4.4 |
3.5 |
2.5 |
2.0 |
2.2 |
2.7 |
流量 (m3/s) |
241.74 |
197.44 |
143.35 |
75.78 |
129.75 |
53.53 |
77.67 |
108.02 |
|
|
|
|
|
153.48 |
96.26 |
71.92 |
66.39 |
63.71 |
59.79 |
53.53 |
69.13 |
116.83 |
67.75 |
|
|
|
|
採取水深 (m) |
0.6 |
0.6 |
0.5 |
0.5 |
0.5 |
0.6 |
0.5 |
0.6 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.6 |
0.5 |
0.4 |
0.5 |
0.4 |
0.5 |
0.4 |
0.4 |
0.6 |
0.4 |
0.4 |
0.4 |
0.3 |
0.4 |
全水深 (m) |
3.0 |
3.0 |
2.6 |
2.5 |
2.7 |
2.8 |
2.3 |
2.8 |
2.4 |
2.4 |
2.4 |
2.4 |
2.5 |
3.1 |
2.5 |
2.2 |
2.4 |
2.0 |
2.3 |
2.0 |
2.2 |
2.8 |
2.0 |
2.0 |
2.0 |
1.8 |
2.0 |
外観 |
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 |
茶色 |
微白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
茶色 |
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 |
無色澄明 |
無色澄明 |
無色澄明 |
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 |
7.1 |
7.2 |
7.3 |
7.2 |
7.3 |
7.3 |
7.5 |
7.4 |
7.4 |
7.5 |
8.2 |
7.7 |
7.7 |
7.3 |
7.4 |
7.5 |
7.4 |
7.5 |
7.4 |
7.5 |
7.2 |
7.4 |
7.2 |
7.2 |
7.4 |
7.2 |
7.5 |
DO (mg/l) |
11.8 |
10.9 |
10.5 |
10.2 |
10.3 |
8.6 |
9.7 |
8.9 |
6.8 |
7.4 |
9.6 |
8.0 |
8.8 |
8.8 |
8.7 |
10.1 |
10.3 |
11.4 |
11.5 |
12.5 |
12.8 |
13.0 |
13.2 |
13.4 |
13.2 |
13.3 |
12.9 |
BOD (mg/l) |
0.5 |
1.2 |
0.7 |
1.0 |
1.1 |
1.6 |
0.9 |
0.9 |
1.3 |
1.1 |
1.0 |
1.3 |
1.2 |
0.7 |
0.9 |
0.8 |
1.0 |
1.4 |
0.9 |
1.0 |
0.7 |
0.9 |
0.8 |
1.3 |
1.9 |
1.1 |
1.5 |
COD (mg/l) |
|
0.7 |
1.2 |
|
1.5 |
|
1.6 |
|
|
|
1.5 |
|
|
|
2.2 |
1.9 |
|
1.7 |
|
1.6 |
|
|
1.2 |
1.8 |
|
2.1 |
|
SS (mg/l) |
9 |
5 |
6 |
4 |
3 |
2 |
8 |
5 |
2 |
2 |
2 |
2 |
5 |
10 |
10 |
2 |
2 |
2 |
2 |
2 |
5 |
4 |
2 |
2 |
5 |
2 |
3 |
大腸菌群数 (MPN/100ml) |
1.4E+03 |
4.9E+03 |
2.4E+03 |
1.3E+03 |
1.3E+03 |
7.9E+03 |
4.9E+03 |
3.3E+03 |
4.9E+03 |
3.3E+03 |
4.9E+03 |
7.9E+03 |
4.9E+04 |
3.3E+04 |
1.7E+04 |
1.3E+04 |
7.9E+02 |
2.4E+03 |
4.9E+02 |
1.3E+03 |
4.9E+03 |
1.3E+03 |
4.9E+03 |
7.9E+02 |
7.9E+02 |
1.3E+03 |
1.3E+03 |
全窒素 (mg/l) |
|
|
1.01 |
|
|
|
1.09 |
|
|
|
|
|
|
|
1.24 |
|
|
0.92 |
|
|
|
|
1.41 |
|
|
1.81 |
|
全燐 (mg/l) |
|
|
0.034 |
|
|
|
0.049 |
|
|
|
|
|
|
|
0.036 |
|
|
0.038 |
|
|
|
|
0.033 |
|
|
0.050 |
|
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 |
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) |
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
< 0.1 |
|
|
|
|
< 0.1 |
|
|
|
< 0.1 |
|
|
< 0.1 |
|
アンモニア性窒素 (mg/l) |
|
|
0.2 |
|
|
|
< 0.1 |
|
|
|
|
|
|
|
< 0.1 |
|
|
< 0.1 |
|
|
|
|
0.2 |
|
|
0.3 |
|
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) |
|
|
5 |
|
|
|
8 |
|
|
|
|
|
|
|
6 |
|
|
6 |
|
|
|
|
7 |
|
|
9 |
|
硫酸イオン (mg/l) |
|
|
16 |
|
|
|
20 |
|
|
|
|
|
|
|
21 |
|
|
17 |
|
|
|
|
16 |
|
|
21 |
|
酸度 (mg/l) |
|
|
5 |
|
|
|
3 |
|
|
|
|
|
|
|
4 |
|
|
4 |
|
|
|
|
6 |
|
|
9 |
|
アルカリ度 (mg/l) |
|
|
17 |
|
|
|
30 |
|
|
|
|
|
|
|
28 |
|
|
27 |
|
|
|
|
28 |
|
|
33 |
|
ほう素 (mg/l) |
|
|
0.02 |
|
|
|
|
0.04 |
|
|
|
|
|
0.03 |
|
|
|
|
0.04 |
|
|
|
0.03 |
|
|
0.07 |
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
0.69 |
|
|
|
0.89 |
|
|
|
|
|
|
|
0.79 |
|
|
0.76 |
|
|
|
|
1.08 |
|
|
0.88 |
|