測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
50301 |
田瀬ダム貯水池 |
L‐5(ダムサイト) |
A |
測定結果
採取年月日 |
1998.04.22 |
1998.04.22 |
1998.04.22 |
1998.05.20 |
1998.05.20 |
1998.05.20 |
1998.06.10 |
1998.06.10 |
1998.06.10 |
1998.07.15 |
1998.07.15 |
1998.07.15 |
1998.08.24 |
1998.08.24 |
1998.08.24 |
1998.09.21 |
1998.09.21 |
1998.09.21 |
1998.10.14 |
1998.10.14 |
1998.10.14 |
1998.11.11 |
1998.11.11 |
1998.11.11 |
1998.12.09 |
1998.12.09 |
1998.12.09 |
1999.01.06 |
1999.01.06 |
1999.01.06 |
1999.02.17 |
1999.02.17 |
1999.02.17 |
1999.03.10 |
1999.03.10 |
1999.03.10 |
採取時刻 |
1010 |
1032 |
1055 |
1000 |
1038 |
1100 |
0950 |
1012 |
1032 |
1035 |
1102 |
1126 |
1305 |
1337 |
1358 |
1205 |
1256 |
1321 |
1016 |
1049 |
1059 |
1015 |
1107 |
1151 |
1030 |
1132 |
1151 |
1000 |
1051 |
1120 |
1001 |
1051 |
1112 |
1001 |
1045 |
1059 |
天候 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
気温 (℃) |
22.0 |
23.0 |
23.0 |
23.0 |
22.6 |
25.8 |
20.0 |
23.0 |
23.0 |
24.5 |
25.7 |
25.1 |
30.1 |
31.5 |
30.3 |
25.0 |
25.6 |
26.0 |
19.0 |
19.1 |
19.5 |
8.0 |
8.1 |
8.1 |
4.0 |
5.0 |
4.8 |
5.0 |
4.3 |
5.0 |
3.0 |
5.0 |
6.0 |
4.0 |
4.0 |
4.0 |
水温 (℃) |
14.5 |
4.8 |
4.3 |
17.5 |
5.0 |
4.1 |
18.0 |
6.0 |
4.4 |
26.3 |
7.7 |
6.9 |
28.0 |
16.5 |
5.2 |
24.0 |
15.7 |
4.4 |
18.1 |
13.9 |
8.6 |
11.0 |
11.0 |
6.0 |
6.7 |
6.9 |
5.5 |
5.0 |
5.0 |
5.0 |
1.0 |
4.0 |
4.0 |
3.0 |
3.9 |
4.0 |
採取水深 (m) |
0.5 |
21.8 |
42.6 |
0.5 |
21.0 |
41.0 |
0.5 |
20.5 |
40.0 |
0.5 |
22.4 |
43.8 |
0.5 |
22.4 |
43.8 |
0.5 |
22.0 |
41.0 |
0.5 |
25.0 |
49.0 |
0.5 |
29.5 |
58.0 |
0.5 |
29.0 |
57.0 |
0.5 |
29.4 |
57.6 |
0.5 |
23.5 |
46.0 |
0.5 |
20.6 |
40.2 |
全水深 (m) |
43.6 |
|
|
42.0 |
|
|
41.0 |
|
|
44.8 |
|
|
44.8 |
|
|
42.0 |
|
|
50.0 |
|
|
59.0 |
|
|
58.0 |
|
|
58.6 |
|
|
47.0 |
|
|
41.2 |
|
|
透明度 (m) |
2.90 |
|
|
2.60 |
|
|
2.70 |
|
|
3.40 |
|
|
1.60 |
|
|
1.70 |
|
|
1.70 |
|
|
3.30 |
|
|
5.00 |
|
|
3.60 |
|
|
4.00 |
|
|
4.10 |
|
|
外観 |
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 |
無色澄明 |
無色澄明 |
濃白濁 |
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 |
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 |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
pH |
7.8 |
7.3 |
7.1 |
8.4 |
7.1 |
7.2 |
8.2 |
7.1 |
7.1 |
9.1 |
7.2 |
7.6 |
10.1 |
7.4 |
6.9 |
10.0 |
7.1 |
6.8 |
10.1 |
7.4 |
6.8 |
8.4 |
7.3 |
6.9 |
7.4 |
7.2 |
7.2 |
7.3 |
7.3 |
7.2 |
7.3 |
7.2 |
7.0 |
7.1 |
6.9 |
6.8 |
DO (mg/l) |
10.8 |
10.5 |
9.1 |
11.0 |
9.6 |
9.0 |
10.3 |
8.6 |
9.1 |
11.5 |
8.8 |
4.7 |
13.3 |
8.4 |
2.0 |
14.5 |
8.2 |
3.7 |
12.9 |
8.8 |
3.7 |
11.1 |
8.7 |
0.9 |
10.8 |
8.7 |
9.0 |
11.2 |
10.9 |
9.7 |
10.2 |
10.9 |
6.0 |
11.2 |
7.4 |
3.6 |
BOD (mg/l) |
0.7 |
< 0.5 |
< 0.5 |
1.9 |
< 0.5 |
0.5 |
1.7 |
< 0.5 |
< 0.5 |
1.2 |
< 0.5 |
< 0.5 |
2.3 |
< 0.5 |
< 0.5 |
2.9 |
< 0.5 |
< 0.5 |
4.4 |
< 0.5 |
< 0.5 |
0.7 |
< 0.5 |
0.6 |
0.7 |
0.5 |
0.6 |
< 0.5 |
< 0.5 |
0.5 |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.8 |
COD (mg/l) |
2.0 |
2.1 |
1.8 |
2.1 |
1.1 |
0.8 |
2.5 |
1.8 |
< 0.5 |
2.8 |
0.6 |
0.8 |
6.0 |
1.2 |
2.0 |
7.0 |
3.3 |
1.4 |
6.5 |
1.3 |
1.2 |
2.1 |
1.4 |
1.8 |
2.1 |
1.8 |
1.7 |
1.4 |
1.4 |
1.7 |
1.1 |
1.4 |
1.7 |
1.3 |
1.3 |
2.0 |
SS (mg/l) |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
< 1 |
2 |
1 |
1 |
6 |
1 |
3 |
7 |
21 |
4 |
7 |
2 |
6 |
2 |
1 |
11 |
2 |
2 |
3 |
1 |
1 |
5 |
< 1 |
< 1 |
4 |
< 1 |
1 |
3 |
大腸菌群数 (MPN/100ml) |
2.0E+00 |
7.8E+00 |
4.5E+00 |
7.0E+01 |
1.7E+01 |
4.5E+00 |
1.3E+02 |
1.7E+02 |
1.3E+02 |
< 1.8E+00 |
1.3E+01 |
4.9E+01 |
< 1.8E+00 |
1.7E+03 |
3.3E+02 |
< 1.8E+00 |
1.3E+04 |
3.3E+02 |
2.2E+02 |
7.9E+02 |
3.3E+02 |
1.1E+02 |
1.3E+02 |
1.3E+02 |
3.3E+01 |
3.3E+01 |
2.4E+02 |
2.3E+01 |
1.3E+01 |
2.3E+01 |
7.9E+01 |
< 1.8E+00 |
7.8E+00 |
< 1.8E+00 |
2.0E+00 |
7.8E+00 |
全窒素 (mg/l) |
0.51 |
0.62 |
0.68 |
0.64 |
0.60 |
0.70 |
0.80 |
0.63 |
0.68 |
0.35 |
0.57 |
0.71 |
0.50 |
0.82 |
0.83 |
0.68 |
0.77 |
0.79 |
0.73 |
0.60 |
0.79 |
0.52 |
0.53 |
0.88 |
0.45 |
0.47 |
0.60 |
0.49 |
0.48 |
0.60 |
0.91 |
0.50 |
0.74 |
0.56 |
0.57 |
0.93 |
全燐 (mg/l) |
0.006 |
0.007 |
0.008 |
0.018 |
0.005 |
0.006 |
0.033 |
0.008 |
0.005 |
0.009 |
0.005 |
0.007 |
0.018 |
0.029 |
0.017 |
0.022 |
0.053 |
0.018 |
0.040 |
0.012 |
0.017 |
0.015 |
0.016 |
0.028 |
0.006 |
0.012 |
0.013 |
0.008 |
0.006 |
0.018 |
0.006 |
0.008 |
0.019 |
0.008 |
0.009 |
0.021 |
カドミウム (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
全シアン (mg/l) |
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
鉛 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
六価クロム (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.040 |
|
|
|
|
|
|
|
|
|
|
|
< 0.040 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
砒素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
総水銀 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
テトラクロロエチレン (mg/l) |
|
|
|
|
|
|
|
|
|
< 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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
アンモニア性窒素 (mg/l) |
< 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 |
< 0.1 |
< 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 |
< 0.1 |
< 0.1 |
< 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 |
2.5E+00 |
4.1E+00 |
< 2.0E+00 |
< 2.0E+00 |
9.9E+00 |
< 2.0E+00 |
< 2.0E+00 |
5.7E+00 |
< 2.0E+00 |
< 2.0E+00 |
5.7E+00 |
< 2.0E+00 |
< 2.0E+00 |
1.5E+01 |
< 2.0E+00 |
< 2.0E+00 |
1.4E+01 |
< 2.0E+00 |
< 2.0E+00 |
2.2E+01 |
6.9E+00 |
2.2E+00 |
3.9E+00 |
2.2E+00 |
< 2.0E+00 |
< 2.0E+00 |
< 2.0E+00 |
< 2.0E+00 |
< 2.0E+00 |
< 2.0E+00 |
< 2.0E+00 |
< 2.0E+00 |
< 2.0E+00 |
< 2.0E+00 |
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 |
18.0 |
> 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 |
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
0.32 |
0.50 |
0.55 |
0.24 |
0.44 |
0.53 |
0.37 |
0.51 |
0.56 |
0.13 |
0.51 |
0.65 |
< 0.02 |
0.57 |
0.54 |
< 0.02 |
0.52 |
0.58 |
0.09 |
0.44 |
0.62 |
0.31 |
0.42 |
0.17 |
0.22 |
0.21 |
0.22 |
0.30 |
0.27 |
0.29 |
0.35 |
0.33 |
0.24 |
0.47 |
0.42 |
0.35 |