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 |
1996.04.10 |
1996.04.24 |
1996.05.07 |
1996.05.22 |
1996.06.05 |
1996.06.26 |
1996.07.03 |
1996.07.29 |
1996.08.06 |
1996.08.06 |
1996.08.06 |
1996.08.06 |
1996.08.21 |
1996.09.04 |
1996.09.18 |
1996.10.02 |
1996.10.16 |
1996.11.06 |
1996.11.20 |
1996.12.04 |
1996.12.18 |
1997.01.08 |
1997.01.22 |
1997.02.05 |
1997.02.19 |
1997.03.05 |
1997.03.19 |
採取時刻 |
1145 |
0940 |
0925 |
1310 |
1155 |
0930 |
1200 |
0930 |
0230 |
0830 |
1430 |
2030 |
0935 |
1119 |
0920 |
1045 |
0925 |
1240 |
0925 |
1040 |
0945 |
1350 |
0950 |
1045 |
0920 |
1210 |
0930 |
天候 |
曇り |
晴れ |
曇り |
曇り |
曇り |
晴れ |
雨 |
晴れ |
曇り |
曇り |
晴れ |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
晴れ |
曇り |
曇り |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
気温 (℃) |
7.0 |
18.0 |
8.7 |
12.1 |
19.3 |
19.8 |
20.0 |
28.3 |
16.2 |
21.2 |
26.2 |
22.0 |
27.5 |
25.0 |
22.4 |
19.8 |
14.7 |
10.7 |
3.8 |
3.0 |
8.0 |
3.0 |
-1.6 |
2.1 |
3.0 |
9.0 |
6.5 |
水温 (℃) |
7.3 |
8.0 |
8.5 |
15.0 |
15.9 |
15.8 |
18.0 |
23.0 |
19.3 |
19.8 |
23.2 |
23.0 |
22.0 |
21.0 |
19.2 |
17.8 |
14.2 |
12.5 |
5.9 |
5.0 |
5.2 |
3.5 |
1.0 |
2.5 |
1.0 |
3.9 |
4.0 |
流量 (m3/s) |
135.56 |
129.57 |
165.38 |
146.51 |
133.78 |
240.60 |
146.51 |
66.57 |
40.52 |
52.74 |
52.74 |
52.74 |
36.08 |
75.64 |
37.17 |
36.09 |
24.32 |
31.91 |
35.02 |
35.02 |
58.08 |
59.46 |
36.09 |
36.09 |
36.09 |
72.55 |
55.38 |
外観 |
無色澄明 |
微白濁 |
微白濁 |
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 |
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 |
微茶濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
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 |
7.4 |
7.4 |
7.1 |
7.2 |
7.4 |
7.3 |
7.4 |
7.5 |
7.5 |
7.4 |
7.9 |
7.7 |
7.6 |
7.6 |
7.6 |
7.8 |
7.5 |
7.3 |
7.5 |
7.4 |
7.3 |
7.6 |
7.7 |
7.7 |
7.5 |
7.5 |
7.4 |
DO (mg/l) |
12.0 |
12.0 |
11.0 |
10.0 |
10.0 |
9.2 |
9.1 |
9.3 |
7.0 |
8.1 |
10.0 |
8.0 |
8.4 |
9.3 |
9.3 |
10.0 |
9.5 |
11.0 |
11.0 |
11.0 |
11.0 |
13.0 |
13.0 |
13.0 |
13.0 |
13.0 |
13.0 |
BOD (mg/l) |
1.2 |
0.8 |
0.6 |
1.4 |
0.8 |
1.4 |
0.7 |
0.5 |
1.2 |
1.5 |
1.1 |
1.5 |
0.7 |
1.0 |
1.3 |
1.2 |
1.4 |
1.6 |
1.0 |
1.2 |
1.5 |
1.2 |
0.9 |
1.4 |
2.2 |
0.8 |
1.2 |
COD (mg/l) |
1.7 |
|
|
1.6 |
1.6 |
|
2.4 |
|
|
|
1.8 |
|
|
3.0 |
|
1.8 |
|
2.6 |
|
2.2 |
|
2.0 |
|
2.3 |
|
2.0 |
|
SS (mg/l) |
7 |
7 |
11 |
5 |
4 |
13 |
9 |
3 |
6 |
4 |
2 |
4 |
3 |
7 |
3 |
2 |
3 |
5 |
2 |
3 |
22 |
2 |
2 |
2 |
2 |
3 |
3 |
大腸菌群数 (MPN/100ml) |
2.3E+02 |
3.3E+03 |
2.4E+03 |
1.7E+03 |
3.3E+02 |
3.3E+03 |
7.9E+03 |
3.3E+03 |
4.9E+03 |
4.9E+04 |
4.9E+03 |
1.1E+05 |
3.3E+04 |
2.4E+03 |
7.9E+03 |
4.9E+02 |
1.3E+03 |
1.3E+03 |
4.9E+02 |
4.9E+02 |
7.9E+03 |
3.3E+02 |
4.9E+02 |
2.3E+03 |
4.9E+02 |
3.3E+02 |
3.3E+02 |
全窒素 (mg/l) |
|
|
|
1.10 |
|
|
1.00 |
|
|
|
|
|
|
1.40 |
|
|
|
1.50 |
|
|
|
1.30 |
|
|
|
1.20 |
|
全燐 (mg/l) |
|
|
|
0.037 |
|
|
0.039 |
|
|
|
|
|
|
0.072 |
|
|
|
0.097 |
|
|
|
0.049 |
|
|
|
0.035 |
|
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) |
|
< 0.04 |
< 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 |
|
|
|
|
|
|
|
|
|
四塩化炭素 (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
1,2-ジクロロエタン (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.0004 |
|
|
|
|
|
|
|
|
|
1,1-ジクロロエチレン (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
シス-1,2-ジクロロエチレン (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.004 |
|
|
|
|
|
|
|
|
|
1,1,1-トリクロロエタン (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
1,1,2-トリクロロエタン (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 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) |
|
|
|
0.08 |
|
|
0.15 |
|
|
|
|
|
|
0.19 |
|
|
|
0.09 |
|
|
|
0.08 |
|
|
|
0.07 |
|
アンモニア性窒素 (mg/l) |
|
|
|
0.1 |
|
|
< 0.1 |
|
|
|
|
|
|
< 0.1 |
|
|
|
0.1 |
|
|
|
0.3 |
|
|
|
0.2 |
|
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) |
|
|
|
6 |
|
|
6 |
|
|
|
|
|
|
10 |
|
|
|
10 |
|
|
|
10 |
|
|
|
11 |
|
硫酸イオン (mg/l) |
|
|
|
19 |
|
|
16 |
|
|
|
|
|
|
24 |
|
|
|
36 |
|
|
|
24 |
|
|
|
29 |
|
酸度 (mg/l) |
|
|
|
4 |
|
|
2 |
|
|
|
|
|
|
2 |
|
|
|
4 |
|
|
|
2 |
|
|
|
2 |
|
アルカリ度 (mg/l) |
|
|
|
18 |
|
|
22 |
|
|
|
|
|
|
34 |
|
|
|
37 |
|
|
|
31 |
|
|
|
32 |
|