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 |
1998.04.17 |
1998.04.27 |
1998.05.20 |
1998.05.27 |
1998.06.03 |
1998.06.17 |
1998.07.15 |
1998.07.22 |
1998.08.05 |
1998.08.29 |
1998.09.08 |
1998.09.08 |
1998.09.08 |
1998.09.08 |
1998.09.29 |
1998.10.07 |
1998.10.21 |
1998.11.04 |
1998.11.18 |
1998.12.02 |
1998.12.16 |
1999.01.13 |
1999.01.20 |
1999.02.03 |
1999.02.17 |
1999.03.03 |
1999.03.10 |
採取時刻 |
1125 |
1355 |
1130 |
1218 |
1107 |
1156 |
1200 |
1127 |
1330 |
1115 |
0145 |
0745 |
1345 |
1945 |
1318 |
1330 |
1325 |
1340 |
1300 |
1200 |
1135 |
1130 |
1140 |
1100 |
1317 |
1055 |
1137 |
天候 |
曇り |
曇り |
晴れ |
晴れ |
雨 |
晴れ |
晴れ |
曇り |
曇り |
曇り |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
曇り |
晴れ |
曇り |
曇り |
曇り |
晴れ |
曇り |
晴れ |
曇り |
気温 (℃) |
11.0 |
10.0 |
22.5 |
22.4 |
14.8 |
26.1 |
22.9 |
22.5 |
31.2 |
24.5 |
19.0 |
21.0 |
25.0 |
21.0 |
22.0 |
21.4 |
13.0 |
17.6 |
7.6 |
2.5 |
11.9 |
3.5 |
5.4 |
2.7 |
13.0 |
5.3 |
4.5 |
水温 (℃) |
10.0 |
10.6 |
17.0 |
17.6 |
16.5 |
18.0 |
21.8 |
22.8 |
23.5 |
20.5 |
19.0 |
18.5 |
19.2 |
19.0 |
18.5 |
16.7 |
13.3 |
12.5 |
8.1 |
5.5 |
5.6 |
3.0 |
2.8 |
1.7 |
4.2 |
3.5 |
4.5 |
流量 (m3/s) |
565.09 |
307.06 |
276.90 |
359.08 |
179.03 |
417.94 |
211.26 |
125.59 |
415.17 |
1520.85 |
487.25 |
484.25 |
440.45 |
401.45 |
539.55 |
472.37 |
451.93 |
265.71 |
415.17 |
295.27 |
434.77 |
193.86 |
177.21 |
190.10 |
124.07 |
369.45 |
323.95 |
採取水深 (m) |
1.0 |
0.8 |
0.8 |
0.8 |
0.6 |
0.9 |
0.7 |
0.6 |
0.8 |
1.6 |
0.9 |
0.9 |
0.9 |
0.9 |
0.9 |
0.9 |
0.8 |
0.7 |
0.9 |
0.8 |
0.9 |
0.7 |
0.6 |
0.6 |
0.6 |
0.8 |
0.8 |
全水深 (m) |
4.9 |
3.8 |
4.0 |
3.9 |
3.1 |
4.3 |
3.5 |
3.0 |
3.8 |
8.0 |
4.5 |
4.5 |
4.5 |
4.3 |
4.7 |
4.7 |
4.0 |
3.6 |
4.5 |
3.9 |
4.6 |
3.5 |
3.1 |
3.0 |
3.0 |
4.0 |
4.0 |
外観 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
微白濁 |
微白濁 |
無色澄明 |
茶色 |
茶濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
白濁 |
無色澄明 |
微白濁 |
無色澄明 |
白濁 |
無色澄明 |
微茶濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
微茶濁 |
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 |
7.1 |
7.2 |
7.3 |
7.3 |
7.5 |
7.4 |
7.6 |
7.9 |
7.5 |
7.4 |
7.4 |
7.4 |
7.5 |
7.4 |
7.5 |
7.4 |
7.4 |
7.6 |
7.4 |
7.3 |
7.4 |
7.2 |
7.3 |
7.4 |
7.0 |
7.4 |
7.3 |
DO (mg/l) |
11.0 |
10.5 |
9.0 |
9.2 |
9.0 |
9.0 |
8.6 |
8.6 |
8.2 |
8.6 |
9.7 |
9.9 |
9.1 |
9.4 |
9.4 |
9.2 |
9.9 |
10.8 |
11.1 |
11.8 |
12.1 |
13.1 |
13.1 |
13.1 |
13.4 |
12.5 |
13.0 |
BOD (mg/l) |
0.7 |
1.0 |
0.9 |
1.4 |
1.1 |
1.0 |
0.7 |
1.1 |
0.7 |
1.1 |
< 0.5 |
< 0.5 |
0.5 |
< 0.5 |
0.5 |
< 0.5 |
0.6 |
0.7 |
1.1 |
0.9 |
1.0 |
0.8 |
0.7 |
1.6 |
1.0 |
1.5 |
< 0.5 |
COD (mg/l) |
2.7 |
|
3.1 |
|
3.1 |
|
|
2.2 |
|
7.1 |
|
|
1.6 |
|
|
1.8 |
|
1.9 |
|
2.5 |
|
1.6 |
|
2.0 |
|
4.8 |
|
SS (mg/l) |
8 |
9 |
10 |
16 |
3 |
11 |
6 |
< 1 |
10 |
43 |
9 |
10 |
9 |
9 |
13 |
9 |
9 |
4 |
17 |
9 |
18 |
15 |
5 |
4 |
3 |
20 |
6 |
大腸菌群数 (MPN/100ml) |
3.3E+03 |
7.9E+03 |
7.0E+03 |
1.1E+03 |
4.9E+03 |
7.8E+01 |
3.5E+03 |
2.3E+02 |
1.7E+03 |
9.2E+05 |
4.9E+02 |
3.3E+03 |
7.9E+03 |
7.9E+03 |
7.9E+03 |
3.3E+03 |
3.5E+04 |
2.8E+04 |
7.9E+03 |
1.7E+03 |
2.4E+03 |
4.9E+02 |
1.1E+03 |
1.1E+03 |
3.3E+02 |
1.1E+03 |
4.9E+02 |
全窒素 (mg/l) |
|
|
1.03 |
|
|
|
|
1.03 |
|
|
|
|
1.02 |
|
|
|
|
0.85 |
|
|
|
1.17 |
|
|
|
1.24 |
|
全燐 (mg/l) |
|
|
0.071 |
|
|
|
|
0.044 |
|
|
|
|
0.036 |
|
|
|
|
0.046 |
|
|
|
0.057 |
|
|
|
0.091 |
|
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 |
|
|
|
|
|
0.008 |
|
0.005 |
|
0.005 |
|
0.005 |
|
0.005 |
|
0.005 |
|
0.007 |
六価クロム (mg/l) |
|
< 0.04 |
|
< 0.04 |
|
< 0.04 |
< 0.04 |
|
< 0.04 |
|
|
|
|
|
< 0.04 |
|
< 0.04 |
|
< 0.04 |
|
< 0.04 |
|
< 0.04 |
|
< 0.04 |
|
< 0.04 |
砒素 (mg/l) |
|
< 0.002 |
|
< 0.002 |
|
< 0.002 |
< 0.002 |
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
< 0.002 |
|
< 0.002 |
|
< 0.002 |
|
< 0.002 |
|
< 0.002 |
|
< 0.002 |
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) |
|
|
0.2 |
|
|
|
|
< 0.1 |
|
|
|
|
0.1 |
|
|
|
|
0.2 |
|
|
|
< 0.1 |
|
|
|
0.2 |
|
透視度 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
8.0 |
> 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) |
|
|
10 |
|
|
|
|
10 |
|
|
|
|
7 |
|
|
|
|
9 |
|
|
|
9 |
|
|
|
10 |
|
硫酸イオン (mg/l) |
|
|
14 |
|
|
|
|
21 |
|
|
|
|
11 |
|
|
|
|
15 |
|
|
|
18 |
|
|
|
14 |
|