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 |
1998.04.17 |
1998.04.22 |
1998.04.24 |
1998.04.30 |
1998.05.06 |
1998.05.13 |
1998.05.20 |
1998.06.03 |
1998.06.09 |
1998.06.10 |
1998.06.16 |
1998.07.13 |
1998.07.15 |
1998.07.22 |
1998.08.06 |
1998.08.20 |
1998.08.24 |
1998.08.29 |
1998.09.08 |
1998.09.21 |
1998.09.28 |
1998.10.07 |
1998.10.13 |
1998.10.14 |
1998.10.20 |
1998.11.04 |
1998.11.11 |
1998.11.17 |
1998.12.02 |
1998.12.08 |
1998.12.09 |
1998.12.15 |
1999.01.06 |
1999.01.13 |
1999.01.19 |
1999.02.03 |
1999.02.09 |
1999.02.16 |
1999.02.17 |
1999.03.03 |
1999.03.09 |
1999.03.10 |
採取時刻 |
1025 |
1110 |
1116 |
1045 |
1055 |
1200 |
1056 |
1050 |
1035 |
1130 |
1055 |
1123 |
1220 |
1055 |
1100 |
1001 |
1140 |
1050 |
1110 |
1150 |
1037 |
1103 |
1055 |
1130 |
1040 |
1103 |
1230 |
1050 |
1040 |
1110 |
1110 |
1055 |
1150 |
1055 |
1100 |
1100 |
1058 |
1030 |
1110 |
1100 |
1015 |
1110 |
天候 |
曇り |
曇り |
雨 |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
曇り |
曇り |
雨 |
曇り |
曇り |
曇り |
曇り |
晴れ |
曇り |
雨 |
曇り |
曇り |
晴れ |
曇り |
曇り |
曇り |
曇り |
晴れ |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
曇り |
気温 (℃) |
9.4 |
26.0 |
16.6 |
17.0 |
20.1 |
13.8 |
21.0 |
13.5 |
16.2 |
22.0 |
15.9 |
22.9 |
27.0 |
23.2 |
24.5 |
26.6 |
28.0 |
20.5 |
23.9 |
23.0 |
22.7 |
16.9 |
21.3 |
16.5 |
14.4 |
13.6 |
7.3 |
7.6 |
0.7 |
3.8 |
4.0 |
5.7 |
5.3 |
4.5 |
1.2 |
-2.6 |
0.5 |
3.7 |
3.9 |
3.1 |
0.2 |
5.0 |
水温 (℃) |
8.3 |
11.9 |
12.6 |
11.8 |
14.5 |
11.5 |
17.2 |
13.8 |
15.5 |
18.0 |
15.5 |
19.2 |
19.5 |
20.5 |
21.0 |
20.5 |
21.0 |
18.2 |
18.5 |
18.0 |
16.0 |
13.0 |
12.7 |
13.0 |
13.0 |
9.0 |
8.0 |
8.5 |
4.3 |
4.8 |
4.8 |
4.7 |
4.4 |
3.6 |
3.5 |
1.7 |
2.9 |
3.5 |
4.3 |
4.8 |
4.8 |
4.4 |
流量 (m3/s) |
57.89 |
51.88 |
62.61 |
32.27 |
24.71 |
61.02 |
24.71 |
24.71 |
19.92 |
20.84 |
44.83 |
25.73 |
23.71 |
19.03 |
31.13 |
53.35 |
31.13 |
435.05 |
43.48 |
42.15 |
64.23 |
59.44 |
62.61 |
56.35 |
81.52 |
38.29 |
42.15 |
50.43 |
49.00 |
46.20 |
57.89 |
56.35 |
26.77 |
23.71 |
23.71 |
20.84 |
19.92 |
17.30 |
57.89 |
26.77 |
27.83 |
27.83 |
採取水深 (m) |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.2 |
0.2 |
0.4 |
0.4 |
0.3 |
0.3 |
0.2 |
0.3 |
0.3 |
0.7 |
0.4 |
0.3 |
0.4 |
0.3 |
0.4 |
0.3 |
0.4 |
0.3 |
0.3 |
0.4 |
0.4 |
0.4 |
0.3 |
0.4 |
0.2 |
0.3 |
0.4 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.2 |
0.3 |
全水深 (m) |
1.5 |
1.0 |
1.6 |
1.3 |
1.3 |
1.1 |
1.3 |
1.6 |
1.2 |
0.9 |
1.8 |
1.8 |
0.9 |
1.4 |
1.0 |
1.6 |
0.9 |
3.3 |
1.9 |
1.0 |
1.9 |
1.6 |
2.2 |
1.0 |
2.2 |
1.5 |
1.0 |
1.9 |
1.9 |
1.8 |
1.0 |
2.0 |
0.9 |
1.7 |
1.8 |
1.5 |
1.6 |
1.7 |
0.9 |
1.7 |
1.1 |
0.9 |
外観 |
白濁 |
微茶濁 |
白濁 |
白濁 |
白濁 |
茶濁 |
白濁 |
微白濁 |
白濁 |
白濁 |
白濁 |
無色澄明 |
無色澄明 |
白濁 |
白濁 |
白濁 |
白濁 |
茶濁 |
微白濁 |
無色澄明 |
無色澄明 |
微白濁 |
白濁 |
白濁 |
微白濁 |
白濁 |
白濁 |
微白濁 |
微茶濁 |
白濁 |
白濁 |
微白濁 |
白濁 |
白濁 |
白濁 |
白濁 |
白濁 |
白濁 |
白濁 |
白濁 |
微白濁 |
微茶濁 |
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 |
なし |
pH |
7.1 |
7.3 |
7.2 |
7.4 |
7.2 |
6.9 |
7.5 |
7.5 |
7.6 |
7.5 |
7.6 |
7.6 |
7.9 |
7.7 |
7.6 |
7.6 |
7.8 |
7.2 |
7.6 |
7.7 |
7.5 |
7.5 |
7.5 |
7.5 |
7.5 |
7.6 |
7.5 |
7.5 |
7.4 |
7.5 |
7.4 |
7.4 |
7.5 |
7.5 |
7.5 |
7.5 |
7.6 |
7.6 |
7.7 |
7.5 |
7.6 |
7.6 |
DO (mg/l) |
|
11.0 |
|
|
|
10.3 |
|
|
|
10.3 |
|
|
9.2 |
|
|
|
9.6 |
|
|
9.6 |
|
|
|
10.2 |
|
|
12.1 |
|
|
|
12.7 |
|
13.2 |
|
|
|
|
|
13.2 |
|
|
12.7 |
BOD (mg/l) |
|
0.5 |
|
|
|
0.5 |
|
|
|
0.9 |
|
|
0.6 |
|
|
|
0.6 |
|
|
< 0.5 |
|
|
|
< 0.5 |
|
|
0.5 |
|
|
|
0.5 |
|
0.8 |
|
|
|
|
|
0.8 |
|
|
0.6 |
COD (mg/l) |
|
2.4 |
|
|
|
7.4 |
|
|
|
1.5 |
|
|
1.9 |
|
|
|
2.2 |
|
|
1.9 |
|
|
|
1.8 |
|
|
1.4 |
|
|
|
1.9 |
|
1.9 |
|
|
|
|
|
2.5 |
|
|
1.9 |
SS (mg/l) |
13 |
15 |
17 |
12 |
17 |
70 |
18 |
14 |
11 |
14 |
13 |
11 |
18 |
14 |
13 |
18 |
8 |
469 |
11 |
9 |
10 |
10 |
8 |
11 |
9 |
12 |
8 |
8 |
13 |
10 |
13 |
11 |
7 |
10 |
11 |
11 |
14 |
11 |
10 |
9 |
11 |
12 |
大腸菌群数 (MPN/100ml) |
|
7.9E+02 |
|
|
|
2.4E+03 |
|
|
|
4.9E+03 |
|
|
1.1E+04 |
|
|
|
2.2E+04 |
|
|
4.9E+03 |
|
|
|
3.3E+03 |
|
|
1.3E+03 |
|
|
|
1.3E+03 |
|
1.7E+03 |
|
|
|
|
|
1.7E+03 |
|
|
1.1E+03 |
全窒素 (mg/l) |
|
|
|
|
|
1.69 |
|
|
|
|
|
|
1.16 |
|
|
|
|
|
|
1.37 |
|
|
|
|
|
|
1.21 |
|
|
|
|
|
1.43 |
|
|
|
|
|
|
|
|
1.91 |
全燐 (mg/l) |
|
|
|
|
|
0.129 |
|
|
|
|
|
|
0.041 |
|
|
|
|
|
|
0.024 |
|
|
|
|
|
|
0.029 |
|
|
|
|
|
0.041 |
|
|
|
|
|
|
|
|
0.049 |
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 |
|
|
|
|
|
|
|
|
< 0.005 |
六価クロム (mg/l) |
|
|
|
|
|
< 0.04 |
|
|
|
|
|
|
< 0.04 |
|
|
|
|
|
|
< 0.04 |
|
|
|
|
|
|
< 0.04 |
|
|
|
|
|
< 0.04 |
|
|
|
|
|
|
|
|
< 0.04 |
砒素 (mg/l) |
< 0.002 |
|
|
|
|
0.005 |
< 0.002 |
< 0.002 |
|
|
|
|
< 0.002 |
0.002 |
|
|
|
0.007 |
< 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 |
鉄(溶解性) (mg/l) |
< 0.1 |
|
< 0.1 |
< 0.1 |
< 0.1 |
|
< 0.1 |
< 0.1 |
< 0.1 |
|
0.2 |
< 0.1 |
|
< 0.1 |
< 0.1 |
0.1 |
|
0.2 |
< 0.1 |
|
0.2 |
< 0.1 |
< 0.1 |
|
< 0.1 |
0.1 |
|
0.1 |
< 0.1 |
< 0.1 |
|
< 0.1 |
|
< 0.1 |
< 0.1 |
< 0.1 |
< 0.1 |
< 0.1 |
|
< 0.1 |
0.4 |
|
アンモニア性窒素 (mg/l) |
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
< 0.1 |
クロロフィル-a (ug/l) |
|
|
|
|
|
< 2.0E+00 |
|
|
|
|
|
|
< 2.0E+00 |
|
|
|
|
|
|
< 2.0E+00 |
|
|
|
|
|
|
< 2.0E+00 |
|
|
|
|
|
2.8E+00 |
|
|
|
|
|
|
|
|
< 2.0E+00 |
透視度 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
15.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
3.0 |
> 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) |
|
|
|
|
|
|
11 |
|
|
|
|
|
|
8 |
|
|
|
|
8 |
|
|
|
|
|
|
10 |
|
|
|
|
|
|
|
10 |
|
|
|
|
|
12 |
|
|
カルシウム (mg/l) |
|
|
|
|
|
|
25 |
|
|
|
|
|
|
29 |
|
|
|
|
21 |
|
|
|
|
|
|
22 |
|
|
|
|
|
|
|
24 |
|
|
|
|
|
24 |
|
|
マグネシウム (mg/l) |
|
|
|
|
|
|
6 |
|
|
|
|
|
|
6 |
|
|
|
|
5 |
|
|
|
|
|
|
5 |
|
|
|
|
|
|
|
6 |
|
|
|
|
|
6 |
|
|
硫酸イオン (mg/l) |
|
|
|
|
|
|
54 |
|
|
|
|
|
|
63 |
|
|
|
|
38 |
|
|
|
|
|
|
41 |
|
|
|
|
|
|
|
50 |
|
|
|
|
|
41 |
|
|
酸度 (mg/l) |
4 |
|
3 |
3 |
2 |
|
4 |
4 |
6 |
|
3 |
5 |
|
4 |
3 |
2 |
|
5 |
2 |
|
2 |
4 |
2 |
|
3 |
3 |
|
3 |
3 |
2 |
|
3 |
|
3 |
5 |
5 |
3 |
2 |
|
4 |
3 |
|
アルカリ度 (mg/l) |
20 |
|
17 |
24 |
20 |
|
32 |
40 |
43 |
|
32 |
43 |
|
33 |
43 |
36 |
|
22 |
34 |
|
30 |
30 |
29 |
|
29 |
36 |
|
35 |
31 |
32 |
|
32 |
|
40 |
43 |
44 |
44 |
45 |
|
43 |
42 |
|
アルミニウム (mg/l) |
|
|
1.6 |
1.4 |
1.7 |
|
1.7 |
1.8 |
1.6 |
|
1.1 |
1.3 |
|
1.8 |
1.5 |
1.3 |
|
4.7 |
1.5 |
|
1.00 |
1.00 |
1.00 |
|
1.00 |
1.4 |
|
1.2 |
1.4 |
1.00 |
|
1.1 |
|
1.7 |
1.5 |
1.5 |
1.4 |
1.3 |
|
1.2 |
1.6 |
|
鉄(2価) (mg/l) |
|
|
0.02 |
0.01 |
0.01 |
|
0.04 |
0.01 |
0.02 |
|
0.04 |
0.01 |
|
0.01 |
0.01 |
0.03 |
|
0.07 |
0.02 |
|
0.01 |
< 0.01 |
0.01 |
|
0.01 |
0.02 |
|
0.02 |
0.03 |
0.02 |
|
0.05 |
|
0.01 |
0.01 |
0.01 |
0.01 |
0.01 |
|
0.02 |
< 0.01 |
|
鉄(3価) (mg/l) |
|
|
0.04 |
0.07 |
0.06 |
|
0.01 |
0.04 |
0.03 |
|
0.17 |
0.07 |
|
0.05 |
0.06 |
0.08 |
|
0.17 |
0.07 |
|
0.21 |
0.06 |
0.04 |
|
0.06 |
0.08 |
|
0.12 |
0.04 |
0.03 |
|
0.01 |
|
0.04 |
0.04 |
0.03 |
0.01 |
< 0.01 |
|
0.06 |
0.44 |
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
|
|
0.94 |
|
|
|
|
|
|
1.05 |
|
|
|
|
|
|
1.26 |
|
|
|
|
|
|
0.85 |
|
|
|
|
|
1.11 |
|
|
|
|
|
|
|
|
1.75 |