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 |
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 |
1110 |
0940 |
1230 |
0950 |
1040 |
0940 |
0950 |
1215 |
1000 |
1040 |
0120 |
0720 |
1320 |
1920 |
0945 |
0940 |
0946 |
0938 |
0945 |
0940 |
0921 |
0940 |
0915 |
0946 |
1005 |
0955 |
0915 |
天候 |
曇り |
曇り |
曇り |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
曇り |
雨 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
雨 |
曇り |
雨 |
曇り |
曇り |
晴れ |
曇り |
気温 (℃) |
10.0 |
9.2 |
23.2 |
18.5 |
15.5 |
23.0 |
20.8 |
22.0 |
29.0 |
20.3 |
19.8 |
21.0 |
25.3 |
22.0 |
21.3 |
16.8 |
12.1 |
8.7 |
4.8 |
2.3 |
5.4 |
2.5 |
3.2 |
-2.2 |
2.3 |
2.9 |
2.3 |
水温 (℃) |
9.5 |
11.4 |
16.1 |
16.1 |
15.0 |
16.9 |
19.7 |
22.0 |
22.0 |
18.9 |
18.5 |
17.8 |
20.5 |
19.5 |
17.0 |
15.0 |
13.5 |
10.8 |
8.6 |
5.0 |
4.0 |
2.8 |
2.7 |
2.0 |
3.3 |
2.8 |
3.3 |
流量 (m3/s) |
149.22 |
133.10 |
87.07 |
66.32 |
55.73 |
103.62 |
60.91 |
46.05 |
96.83 |
1458.55 |
127.86 |
111.50 |
129.75 |
124.13 |
179.19 |
168.23 |
192.80 |
118.63 |
190.49 |
120.45 |
159.72 |
46.48 |
44.24 |
56.00 |
40.99 |
69.13 |
67.75 |
採取水深 (m) |
0.6 |
0.5 |
0.4 |
0.4 |
0.3 |
0.6 |
0.5 |
0.3 |
0.4 |
1.2 |
0.6 |
0.6 |
0.6 |
0.6 |
0.6 |
0.6 |
0.6 |
0.5 |
0.6 |
0.5 |
0.6 |
0.4 |
0.4 |
0.3 |
0.3 |
0.4 |
0.4 |
全水深 (m) |
2.8 |
2.7 |
2.0 |
2.0 |
1.8 |
2.8 |
2.3 |
1.5 |
2.1 |
6.0 |
2.8 |
2.8 |
2.8 |
2.8 |
2.9 |
2.8 |
3.1 |
2.5 |
3.0 |
2.3 |
2.8 |
1.9 |
2.0 |
1.6 |
1.6 |
2.1 |
2.2 |
外観 |
微白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
微白濁 |
無色澄明 |
微白濁 |
茶濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
微白濁 |
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 |
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 |
7.2 |
7.3 |
7.5 |
7.4 |
7.4 |
7.5 |
7.5 |
7.8 |
7.5 |
7.2 |
7.5 |
7.4 |
7.6 |
7.5 |
7.4 |
7.4 |
7.4 |
7.4 |
7.4 |
7.4 |
7.4 |
7.3 |
7.4 |
7.4 |
7.4 |
7.2 |
7.3 |
DO (mg/l) |
11.4 |
10.2 |
11.0 |
10.9 |
9.8 |
10.2 |
9.2 |
10.0 |
8.9 |
9.2 |
9.3 |
9.8 |
9.8 |
9.4 |
9.9 |
9.7 |
10.2 |
10.9 |
11.5 |
12.5 |
12.2 |
13.2 |
12.7 |
13.4 |
13.0 |
13.1 |
12.8 |
BOD (mg/l) |
0.8 |
1.0 |
1.0 |
0.8 |
1.3 |
1.0 |
0.8 |
0.8 |
0.7 |
1.7 |
1.0 |
0.7 |
0.9 |
0.9 |
0.5 |
0.5 |
0.6 |
0.7 |
0.8 |
1.1 |
0.6 |
0.8 |
0.8 |
1.1 |
0.9 |
1.1 |
0.7 |
COD (mg/l) |
2.4 |
|
2.5 |
|
1.5 |
|
|
2.0 |
|
15.6 |
|
|
1.6 |
|
|
1.6 |
|
1.0 |
|
1.2 |
|
1.5 |
|
1.4 |
|
2.0 |
|
SS (mg/l) |
7 |
5 |
4 |
4 |
2 |
5 |
4 |
1 |
4 |
306 |
13 |
6 |
6 |
4 |
6 |
5 |
8 |
1 |
6 |
5 |
4 |
3 |
2 |
1 |
2 |
3 |
3 |
大腸菌群数 (MPN/100ml) |
4.9E+02 |
4.9E+02 |
2.3E+02 |
4.9E+02 |
2.8E+03 |
1.1E+02 |
4.9E+03 |
7.0E+02 |
3.3E+02 |
9.2E+05 |
1.1E+04 |
3.3E+03 |
3.3E+03 |
1.7E+03 |
4.9E+03 |
3.5E+04 |
3.5E+04 |
7.9E+02 |
7.0E+02 |
7.9E+02 |
4.9E+02 |
4.9E+02 |
7.9E+02 |
3.3E+02 |
4.9E+02 |
4.9E+02 |
1.3E+03 |
全窒素 (mg/l) |
|
|
1.09 |
|
|
|
|
1.46 |
|
|
|
|
1.40 |
|
|
|
|
1.12 |
|
|
|
1.61 |
|
|
|
1.40 |
|
全燐 (mg/l) |
|
|
0.041 |
|
|
|
|
0.043 |
|
|
|
|
0.032 |
|
|
|
|
0.023 |
|
|
|
0.043 |
|
|
|
0.038 |
|
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 |
|
|
|
|
|
0.012 |
|
< 0.005 |
|
< 0.005 |
|
0.007 |
|
< 0.001 |
|
0.008 |
|
< 0.005 |
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) |
|
|
0.1 |
|
|
|
|
0.1 |
|
|
|
|
< 0.1 |
|
|
|
|
< 0.1 |
|
|
|
< 0.1 |
|
|
|
0.1 |
|
アンモニア性窒素 (mg/l) |
|
|
< 0.1 |
|
|
|
|
< 0.1 |
|
|
|
|
< 0.1 |
|
|
|
|
< 0.1 |
|
|
|
0.4 |
|
|
|
0.3 |
|
透視度 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
2.5 |
> 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) |
|
|
7 |
|
|
|
|
6 |
|
|
|
|
6 |
|
|
|
|
7 |
|
|
|
8 |
|
|
|
9 |
|
硫酸イオン (mg/l) |
|
|
17 |
|
|
|
|
31 |
|
|
|
|
17 |
|
|
|
|
20 |
|
|
|
25 |
|
|
|
21 |
|
酸度 (mg/l) |
|
|
2 |
|
|
|
|
3 |
|
|
|
|
3 |
|
|
|
|
3 |
|
|
|
3 |
|
|
|
4 |
|
アルカリ度 (mg/l) |
|
|
20 |
|
|
|
|
23 |
|
|
|
|
29 |
|
|
|
|
27 |
|
|
|
31 |
|
|
|
31 |
|