測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
01751 |
北上川(2) |
船田橋 |
A |
測定結果
採取年月日 |
1995.04.14 |
1995.04.18 |
1995.04.19 |
1995.04.28 |
1995.05.10 |
1995.05.17 |
1995.05.23 |
1995.06.07 |
1995.06.13 |
1995.06.20 |
1995.07.05 |
1995.07.18 |
1995.07.19 |
1995.08.01 |
1995.08.14 |
1995.08.22 |
1995.08.23 |
1995.09.06 |
1995.09.19 |
1995.09.20 |
1995.10.04 |
1995.10.11 |
1995.10.16 |
1995.10.27 |
1995.11.13 |
1995.11.15 |
1995.11.21 |
1995.12.06 |
1995.12.12 |
1995.12.13 |
1995.12.19 |
1996.01.10 |
1996.01.17 |
1996.01.23 |
1996.02.07 |
1996.02.13 |
1996.02.14 |
1996.02.20 |
1996.03.06 |
1996.03.12 |
1996.03.13 |
採取時刻 |
1030 |
1030 |
1150 |
1040 |
1035 |
1200 |
1040 |
1030 |
1020 |
1100 |
1020 |
1025 |
1240 |
1050 |
1040 |
1025 |
1220 |
1025 |
1020 |
1220 |
1030 |
1200 |
1020 |
1030 |
1030 |
1400 |
1025 |
1045 |
1020 |
1210 |
1025 |
1105 |
1200 |
1040 |
1035 |
1020 |
1200 |
1025 |
1020 |
1025 |
1200 |
天候 |
曇り |
曇り |
曇り |
曇り |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
雨 |
曇り |
晴れ |
晴れ |
雨 |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
雪 |
曇り |
曇り |
曇り |
曇り |
晴れ |
曇り |
曇り |
晴れ |
曇り |
曇り |
曇り |
晴れ |
晴れ |
気温 (℃) |
9.5 |
8.1 |
13.8 |
17.3 |
20.0 |
14.2 |
17.5 |
21.3 |
18.5 |
18.0 |
25.2 |
25.3 |
25.1 |
23.6 |
24.4 |
26.1 |
28.0 |
18.0 |
18.7 |
20.6 |
15.4 |
17.5 |
20.0 |
15.5 |
12.2 |
3.0 |
8.1 |
0.5 |
4.2 |
1.8 |
2.2 |
2.9 |
0.5 |
1.6 |
4.7 |
9.7 |
7.1 |
-1.1 |
1.0 |
2.3 |
6.8 |
水温 (℃) |
6.0 |
6.8 |
9.5 |
8.8 |
13.3 |
11.6 |
11.2 |
14.8 |
14.8 |
16.0 |
19.0 |
16.8 |
20.5 |
20.8 |
19.0 |
20.8 |
20.8 |
14.8 |
14.8 |
15.4 |
13.2 |
11.7 |
13.7 |
10.2 |
8.0 |
7.3 |
6.1 |
3.8 |
5.5 |
3.5 |
3.0 |
0.8 |
2.5 |
3.0 |
3.5 |
3.5 |
4.9 |
1.1 |
2.5 |
4.0 |
4.5 |
流量 (m3/s) |
58.78 |
58.78 |
103.31 |
68.98 |
26.12 |
70.39 |
65.49 |
34.30 |
23.99 |
49.39 |
29.49 |
35.56 |
35.49 |
20.96 |
53.98 |
27.22 |
40.55 |
46.44 |
40.82 |
31.91 |
28.35 |
23.30 |
21.95 |
22.96 |
35.56 |
35.49 |
27.22 |
21.95 |
20.96 |
20.42 |
19.06 |
16.37 |
20.42 |
18.14 |
13.11 |
20.96 |
24.31 |
18.14 |
15.52 |
17.25 |
16.05 |
外観 |
微白濁 |
微白濁 |
微茶濁 |
微白濁 |
微白濁 |
微茶濁 |
微白濁 |
微白濁 |
微白濁 |
茶色 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微茶濁 |
微白濁 |
微白濁 |
無色澄明 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
茶色 |
微茶濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
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 |
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 |
7.2 |
7.2 |
6.8 |
7.0 |
7.2 |
7.5 |
7.5 |
7.5 |
7.6 |
7.5 |
7.6 |
7.5 |
7.2 |
7.3 |
7.3 |
7.4 |
7.3 |
7.6 |
7.6 |
7.6 |
7.7 |
7.4 |
7.4 |
7.3 |
7.4 |
7.5 |
7.5 |
7.5 |
7.5 |
7.5 |
7.6 |
7.6 |
7.7 |
7.7 |
7.5 |
7.7 |
7.8 |
7.9 |
8.0 |
DO (mg/l) |
|
|
10.0 |
|
|
11.0 |
|
|
|
|
|
|
8.4 |
|
|
|
8.1 |
|
|
10.0 |
|
11.0 |
|
|
|
11.0 |
|
|
|
12.0 |
|
|
14.0 |
|
|
|
11.0 |
|
|
|
14.0 |
BOD (mg/l) |
|
|
2.2 |
|
|
1.2 |
|
|
|
|
|
|
0.9 |
|
|
|
1.0 |
|
|
0.7 |
|
0.8 |
|
|
|
1.0 |
|
|
|
0.6 |
|
|
0.5 |
|
|
|
1.8 |
|
|
|
1.2 |
COD (mg/l) |
|
|
9.1 |
|
|
5.5 |
|
|
|
|
|
|
1.9 |
|
|
|
4.7 |
|
|
1.5 |
|
1.9 |
|
|
|
2.1 |
|
|
|
2.1 |
|
|
2.6 |
|
|
|
2.9 |
|
|
|
2.3 |
SS (mg/l) |
14 |
14 |
85 |
15 |
15 |
62 |
31 |
13 |
15 |
55 |
15 |
13 |
15 |
19 |
16 |
13 |
46 |
12 |
11 |
10 |
13 |
11 |
11 |
12 |
9 |
13 |
11 |
11 |
11 |
13 |
13 |
13 |
13 |
14 |
16 |
27 |
34 |
14 |
18 |
15 |
13 |
大腸菌群数 (MPN/100ml) |
|
|
3.3E+03 |
|
|
4.9E+03 |
|
|
|
|
|
|
3.3E+03 |
|
|
|
7.9E+03 |
|
|
2.3E+03 |
|
7.9E+02 |
|
|
|
7.9E+02 |
|
|
|
1.3E+03 |
|
|
1.1E+03 |
|
|
|
3.3E+03 |
|
|
|
3.3E+02 |
全窒素 (mg/l) |
|
|
|
|
|
1.50 |
|
|
|
|
|
|
1.56 |
|
|
|
|
|
|
1.30 |
|
|
|
|
|
1.10 |
|
|
|
|
|
|
1.60 |
|
|
|
|
|
|
|
1.50 |
全燐 (mg/l) |
|
|
|
|
|
0.170 |
|
|
|
|
|
|
0.073 |
|
|
|
|
|
|
0.045 |
|
|
|
|
|
0.042 |
|
|
|
|
|
|
0.064 |
|
|
|
|
|
|
|
0.065 |
カドミウム (mg/l) |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
< 0.001 |
全シアン (mg/l) |
|
|
|
|
|
N |
|
|
|
|
|
|
N |
|
|
|
|
|
|
N |
|
|
|
|
|
N |
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
N |
鉛 (mg/l) |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
|
0.010 |
六価クロム (mg/l) |
|
|
|
|
|
< 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 |
|
< 0.005 |
|
|
|
|
|
< 0.005 |
総水銀 (mg/l) |
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
< 0.0005 |
鉄(溶解性) (mg/l) |
0.11 |
0.10 |
|
0.13 |
< 0.04 |
|
0.06 |
0.04 |
< 0.04 |
0.12 |
0.09 |
0.06 |
|
0.04 |
0.05 |
0.08 |
|
0.04 |
0.09 |
|
0.14 |
|
0.11 |
0.05 |
0.05 |
0.06 |
0.04 |
0.04 |
0.11 |
|
< 0.04 |
0.06 |
|
< 0.04 |
< 0.04 |
0.05 |
|
0.12 |
< 0.04 |
0.06 |
|
アンモニア性窒素 (mg/l) |
|
|
|
|
|
0.2 |
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
0.1 |
|
|
|
|
|
|
|
0.1 |
クロロフィル-a (ug/l) |
|
|
|
|
|
|
|
|
|
|
|
|
2 |
|
|
|
|
|
|
3 |
|
|
|
|
|
|
|
|
|
|
|
|
5 |
|
|
|
|
|
|
|
5 |
透視度 |
> 30.0 |
> 30.0 |
12.0 |
> 30.0 |
> 30.0 |
17.0 |
24.0 |
> 30.0 |
> 30.0 |
15.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
19.0 |
> 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 |
27.0 |
27.0 |
21.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
塩化物イオン (mg/l) |
|
|
|
|
9 |
|
|
|
|
|
9 |
|
|
|
|
|
|
|
|
|
|
|
|
|
8 |
|
|
|
|
|
|
|
|
|
|
|
|
|
12 |
|
|
カルシウム (mg/l) |
|
|
|
|
16.0 |
|
|
|
|
|
24.0 |
|
|
|
|
|
|
18.0 |
|
|
|
|
|
|
21.0 |
|
|
|
|
|
|
28.0 |
|
|
|
|
|
|
31.0 |
|
|
マグネシウム (mg/l) |
|
|
|
|
3.90 |
|
|
|
|
|
5.90 |
|
|
|
|
|
|
4.50 |
|
|
|
|
|
|
4.80 |
|
|
|
|
|
|
6.70 |
|
|
|
|
|
|
7.20 |
|
|
硫酸イオン (mg/l) |
|
|
|
|
47 |
|
|
|
|
|
45 |
|
|
|
|
|
|
24 |
|
|
|
|
|
|
40 |
|
|
|
|
|
|
|
|
|
|
|
|
|
55 |
|
|
酸度 (mg/l) |
3 |
3 |
|
3 |
5 |
|
4 |
2 |
3 |
4 |
3 |
3 |
|
3 |
4 |
5 |
|
2 |
4 |
|
2 |
|
3 |
3 |
2 |
|
2 |
2 |
5 |
|
4 |
2 |
|
3 |
3 |
3 |
|
3 |
3 |
2 |
|
アルカリ度 (mg/l) |
25 |
22 |
|
20 |
14 |
|
22 |
31 |
34 |
40 |
40 |
35 |
|
45 |
30 |
39 |
|
32 |
36 |
|
38 |
|
39 |
37 |
33 |
|
32 |
39 |
39 |
|
40 |
43 |
|
43 |
44 |
44 |
|
48 |
49 |
47 |
|
アルミニウム (mg/l) |
1.50 |
1.20 |
|
1.40 |
1.90 |
|
2.10 |
1.60 |
1.90 |
3.30 |
1.70 |
1.40 |
|
2.30 |
1.40 |
1.40 |
|
1.30 |
1.20 |
|
1.40 |
|
1.50 |
1.30 |
1.20 |
|
1.40 |
1.50 |
1.60 |
|
1.70 |
1.70 |
|
1.60 |
1.70 |
2.30 |
|
1.60 |
1.70 |
1.70 |
|
鉄(2価) (mg/l) |
0.04 |
0.03 |
|
0.06 |
0.03 |
|
0.02 |
0.01 |
0.02 |
0.05 |
0.04 |
0.01 |
|
0.03 |
0.01 |
0.01 |
|
< 0.01 |
0.01 |
|
< 0.01 |
|
< 0.01 |
< 0.01 |
0.01 |
|
< 0.01 |
0.01 |
0.07 |
|
< 0.01 |
0.01 |
|
< 0.01 |
< 0.01 |
< 0.01 |
|
0.05 |
< 0.01 |
< 0.01 |
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
|
|
1.05 |
|
|
|
|
|
|
0.95 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1.11 |
|
|
|
|
|
|
|
1.14 |