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 |
1997.04.16 |
1997.04.23 |
1997.05.07 |
1997.05.21 |
1997.06.04 |
1997.06.18 |
1997.07.02 |
1997.07.23 |
1997.08.06 |
1997.08.19 |
1997.08.19 |
1997.08.19 |
1997.08.19 |
1997.09.24 |
1997.09.29 |
1997.10.01 |
1997.10.22 |
1997.11.05 |
1997.11.26 |
1997.12.10 |
1997.12.17 |
1998.01.07 |
1998.01.21 |
1998.02.04 |
1998.02.18 |
1998.03.04 |
1998.03.18 |
採取時刻 |
1127 |
1200 |
1330 |
1232 |
1155 |
1135 |
1145 |
1135 |
1335 |
0125 |
0725 |
1325 |
1925 |
1130 |
1125 |
1125 |
1129 |
1130 |
1145 |
1200 |
1149 |
1350 |
1217 |
1124 |
1200 |
1206 |
1140 |
天候 |
晴れ |
晴れ |
曇り |
曇り |
雨 |
晴れ |
曇り |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
雨 |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
気温 (℃) |
10.7 |
13.1 |
14.3 |
15.0 |
18.0 |
23.5 |
24.0 |
25.5 |
27.1 |
20.0 |
20.5 |
26.0 |
21.3 |
16.1 |
16.5 |
20.5 |
20.2 |
12.0 |
14.4 |
9.5 |
9.4 |
-1.9 |
1.0 |
0.0 |
4.2 |
11.3 |
8.3 |
水温 (℃) |
7.2 |
9.1 |
12.0 |
12.5 |
16.0 |
18.2 |
19.0 |
25.8 |
25.2 |
20.0 |
20.0 |
22.5 |
21.5 |
15.4 |
15.3 |
16.0 |
14.5 |
10.5 |
8.5 |
7.8 |
6.2 |
1.8 |
3.0 |
2.5 |
2.8 |
5.0 |
5.4 |
流量 (m3/s) |
382.26 |
437.74 |
216.61 |
444.58 |
456.04 |
247.36 |
591.58 |
120.26 |
121.84 |
118.68 |
134.92 |
145.16 |
120.26 |
314.99 |
373.84 |
277.74 |
148.66 |
189.88 |
360.02 |
672.44 |
343.79 |
185.93 |
314.99 |
172.41 |
189.88 |
277.74 |
287.45 |
全水深 (m) |
4.0 |
4.4 |
3.0 |
4.5 |
4.4 |
3.6 |
4.7 |
3.0 |
3.0 |
2.9 |
3.0 |
3.2 |
3.1 |
4.0 |
4.3 |
3.9 |
3.2 |
3.4 |
4.0 |
5.1 |
3.9 |
3.1 |
3.9 |
3.5 |
3.2 |
3.7 |
4.0 |
外観 |
無色澄明 |
無色澄明 |
微白濁 |
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 |
微白濁 |
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 |
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 |
7.3 |
7.3 |
7.5 |
7.3 |
7.3 |
7.6 |
7.4 |
8.2 |
7.5 |
7.4 |
7.4 |
7.5 |
7.5 |
7.6 |
7.6 |
7.5 |
7.7 |
7.6 |
7.4 |
7.4 |
7.4 |
7.5 |
7.4 |
7.6 |
7.7 |
7.5 |
7.4 |
DO (mg/l) |
10.5 |
11.0 |
9.4 |
9.8 |
9.1 |
9.2 |
7.9 |
9.3 |
7.3 |
8.3 |
8.4 |
9.0 |
8.5 |
9.1 |
9.2 |
9.7 |
10.6 |
11.2 |
11.3 |
11.3 |
12.1 |
13.7 |
13.6 |
13.4 |
13.8 |
12.9 |
13.1 |
BOD (mg/l) |
1.1 |
1.3 |
1.3 |
1.3 |
1.2 |
1.1 |
1.0 |
1.0 |
0.8 |
0.6 |
0.7 |
0.8 |
0.6 |
< 0.5 |
0.7 |
0.6 |
0.7 |
1.1 |
0.8 |
0.7 |
0.5 |
1.1 |
1.2 |
1.5 |
1.4 |
1.9 |
1.2 |
COD (mg/l) |
2.4 |
|
|
3.5 |
5.0 |
|
3.9 |
|
|
|
|
2.0 |
|
|
2.7 |
2.4 |
|
2.0 |
|
2.2 |
|
|
2.0 |
2.5 |
|
2.2 |
|
SS (mg/l) |
8 |
15 |
16 |
23 |
46 |
6 |
17 |
3 |
12 |
3 |
8 |
8 |
6 |
8 |
9 |
5 |
5 |
3 |
9 |
8 |
5 |
2 |
8 |
6 |
8 |
12 |
7 |
大腸菌群数 (MPN/100ml) |
3.3E+03 |
4.9E+03 |
1.1E+03 |
1.7E+04 |
5.2E+04 |
1.7E+03 |
4.9E+03 |
3.3E+02 |
3.3E+02 |
3.3E+02 |
4.9E+02 |
2.4E+03 |
1.4E+03 |
7.9E+03 |
4.9E+03 |
7.9E+02 |
4.9E+02 |
1.1E+03 |
3.3E+03 |
7.9E+03 |
4.9E+02 |
3.3E+03 |
4.9E+02 |
2.4E+03 |
4.9E+02 |
1.3E+03 |
3.3E+02 |
全窒素 (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.94 |
|
|
0.62 |
|
|
|
|
1.06 |
|
|
0.98 |
|
全燐 (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.057 |
|
|
0.052 |
|
|
|
|
0.054 |
|
|
0.058 |
|
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) |
|
< 0.002 |
< 0.002 |
|
|
< 0.002 |
|
< 0.002 |
< 0.002 |
|
|
|
|
< 0.002 |
|
|
< 0.002 |
|
< 0.002 |
|
< 0.002 |
< 0.002 |
|
|
< 0.002 |
|
< 0.002 |
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) |
|
< 0.005 |
< 0.005 |
|
|
< 0.005 |
|
< 0.005 |
< 0.005 |
|
|
|
|
< 0.005 |
|
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
< 0.005 |
|
|
< 0.005 |
|
< 0.005 |
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 |
|
|
|
|
|
|
|
0.2 |
|
|
< 0.1 |
|
|
|
|
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 |
> 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) |
|
|
|
9 |
|
|
7 |
|
|
|
|
|
|
|
8 |
|
|
10 |
|
|
|
|
9 |
|
|
11 |
|
硫酸イオン (mg/l) |
|
|
|
14 |
|
|
13 |
|
|
|
|
|
|
|
13 |
|
|
15 |
|
|
|
|
14 |
|
|
17 |
|