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 |
2000.04.17 |
2000.04.26 |
2000.05.08 |
2000.05.24 |
2000.06.07 |
2000.06.19 |
2000.07.12 |
2000.07.24 |
2000.08.01 |
2000.08.01 |
2000.08.01 |
2000.08.01 |
2000.08.23 |
2000.09.05 |
2000.09.20 |
2000.10.04 |
2000.10.17 |
2000.11.08 |
2000.11.28 |
2000.12.06 |
2000.12.13 |
2001.01.10 |
2001.01.24 |
2001.02.07 |
2001.02.21 |
2001.03.01 |
2001.03.14 |
採取時刻 |
1100 |
1245 |
1140 |
1250 |
1105 |
1245 |
1135 |
1140 |
0125 |
0725 |
1325 |
1925 |
1255 |
1115 |
1245 |
1100 |
1115 |
1120 |
1120 |
1050 |
1150 |
1325 |
1200 |
1100 |
1200 |
1140 |
1100 |
天候 |
晴れ |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
曇り |
晴れ |
雪 |
晴れ |
曇り |
晴れ |
曇り |
曇り |
曇り |
晴れ |
気温 (℃) |
11.5 |
13.7 |
17.0 |
24.0 |
27.4 |
30.2 |
30.5 |
31.7 |
22.7 |
24.5 |
33.4 |
26.6 |
32.5 |
23.8 |
33.7 |
24.7 |
18.1 |
12.0 |
7.8 |
2.0 |
3.1 |
5.6 |
0.9 |
0.2 |
3.4 |
6.6 |
5.4 |
水温 (℃) |
8.0 |
8.2 |
13.0 |
17.0 |
19.0 |
21.9 |
22.0 |
25.1 |
25.3 |
25.8 |
27.2 |
26.8 |
27.1 |
22.5 |
22.4 |
17.8 |
15.8 |
10.7 |
8.0 |
4.2 |
1.5 |
0.7 |
2.0 |
1.2 |
2.0 |
3.5 |
5.0 |
流量 (m3/s) |
706.99 |
1007.53 |
717.30 |
600.19 |
273.19 |
200.98 |
266.75 |
216.07 |
219.93 |
223.82 |
193.63 |
169.02 |
150.85 |
217.99 |
229.72 |
279.71 |
138.28 |
155.70 |
266.75 |
254.10 |
271.04 |
221.87 |
181.12 |
163.96 |
144.50 |
227.74 |
245.84 |
採取水深 (m) |
1.1 |
1.2 |
1.1 |
0.9 |
0.8 |
0.7 |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
0.7 |
0.8 |
0.7 |
0.8 |
0.6 |
0.7 |
0.7 |
0.7 |
0.8 |
0.7 |
0.7 |
0.7 |
0.6 |
0.6 |
0.6 |
全水深 (m) |
5.5 |
6.1 |
5.5 |
4.5 |
4.1 |
3.7 |
4.0 |
3.8 |
3.8 |
3.8 |
3.9 |
3.8 |
3.5 |
4.0 |
3.6 |
4.0 |
3.0 |
3.3 |
3.5 |
3.5 |
3.9 |
3.4 |
3.5 |
3.3 |
3.2 |
3.0 |
2.9 |
外観 |
微白濁 |
微白濁 |
微白濁 |
白濁 |
無色澄明 |
無色澄明 |
微茶濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
白濁 |
微茶濁 |
微茶濁 |
微茶濁 |
無色澄明 |
無色澄明 |
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 |
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 |
7.0 |
7.0 |
7.1 |
7.3 |
7.4 |
7.4 |
7.7 |
7.4 |
7.4 |
7.3 |
7.5 |
7.4 |
7.3 |
7.4 |
7.6 |
7.8 |
7.5 |
7.4 |
7.5 |
7.4 |
7.5 |
7.5 |
7.5 |
7.8 |
7.6 |
7.4 |
DO (mg/l) |
11.2 |
11.5 |
10.4 |
9.5 |
9.2 |
8.5 |
8.1 |
7.8 |
8.3 |
8.0 |
8.1 |
8.4 |
7.9 |
8.0 |
8.5 |
8.9 |
10.7 |
10.4 |
11.4 |
12.0 |
13.6 |
13.0 |
14.1 |
14.0 |
13.8 |
13.1 |
12.5 |
BOD (mg/l) |
0.5 |
0.6 |
1.2 |
0.8 |
1.2 |
1.3 |
0.8 |
0.6 |
0.5 |
0.6 |
0.7 |
0.7 |
1.0 |
1.0 |
0.6 |
0.9 |
0.8 |
0.8 |
0.9 |
0.8 |
0.7 |
1.5 |
1.2 |
1.9 |
1.9 |
1.6 |
1.3 |
COD (mg/l) |
2.0 |
|
2.6 |
|
2.0 |
|
|
2.3 |
|
|
2.8 |
|
|
3.2 |
|
3.2 |
|
2.6 |
|
1.9 |
|
2.8 |
|
2.4 |
|
3.2 |
|
SS (mg/l) |
15 |
29 |
15 |
11 |
6 |
8 |
13 |
9 |
7 |
7 |
8 |
6 |
8 |
17 |
10 |
8 |
2 |
5 |
7 |
6 |
3 |
8 |
3 |
4 |
7 |
14 |
13 |
大腸菌群数 (MPN/100ml) |
1.3E+03 |
4.9E+03 |
2.4E+03 |
1.1E+04 |
3.3E+03 |
7.9E+02 |
7.9E+03 |
1.3E+04 |
2.4E+03 |
7.0E+03 |
2.4E+03 |
3.3E+03 |
2.4E+03 |
1.3E+04 |
3.3E+03 |
1.7E+04 |
7.9E+02 |
1.7E+03 |
7.0E+03 |
7.9E+03 |
7.9E+03 |
7.9E+03 |
7.9E+02 |
1.3E+03 |
7.9E+02 |
1.3E+03 |
3.3E+03 |
全窒素 (mg/l) |
|
|
1.37 |
|
|
|
|
1.12 |
|
|
|
|
|
1.00 |
|
|
|
1.08 |
|
|
|
0.28 |
|
|
|
1.49 |
|
全燐 (mg/l) |
|
|
0.075 |
|
|
|
|
0.053 |
|
|
|
|
|
0.085 |
|
|
|
0.057 |
|
|
|
0.056 |
|
|
|
0.063 |
|
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) |
|
|
0.3 |
|
|
|
|
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) |
|
|
< 0.1 |
|
|
|
|
< 0.1 |
|
|
|
|
|
< 0.1 |
|
|
|
< 0.1 |
|
|
|
< 0.1 |
|
|
|
< 0.1 |
|
透視度 |
> 30.0 |
24.0 |
> 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 |
|
|
|
|
10 |
|
|
|
|
|
7 |
|
|
|
11 |
|
|
|
12 |
|
|
|
15 |
|
硫酸イオン (mg/l) |
|
|
9 |
|
|
|
|
15 |
|
|
|
|
|
21 |
|
|
|
18 |
|
|
|
17 |
|
|
|
19 |
|
酸度 (mg/l) |
|
|
4 |
|
|
|
|
3 |
|
|
|
|
|
5 |
|
|
|
3 |
|
|
|
3 |
|
|
|
2 |
|
アルカリ度 (mg/l) |
|
|
16 |
|
|
|
|
29 |
|
|
|
|
|
31 |
|
|
|
33 |
|
|
|
31 |
|
|
|
30 |
|
ほう素 (mg/l) |
|
|
< 0.02 |
|
|
|
|
|
|
|
0.03 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
0.60 |
|
|
|
|
|
|
|
1.07 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|