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 |
1996.04.22 |
1996.04.22 |
1996.04.22 |
1996.05.15 |
1996.05.15 |
1996.05.15 |
1996.06.24 |
1996.06.24 |
1996.06.24 |
1996.07.17 |
1996.07.17 |
1996.07.17 |
1996.08.21 |
1996.08.21 |
1996.08.21 |
1996.09.17 |
1996.09.17 |
1996.09.17 |
1996.10.16 |
1996.10.16 |
1996.10.16 |
1996.11.13 |
1996.11.13 |
1996.11.13 |
1996.12.11 |
1996.12.11 |
1996.12.11 |
1997.01.22 |
1997.01.22 |
1997.01.22 |
1997.02.26 |
1997.02.26 |
1997.02.26 |
1997.03.12 |
1997.03.12 |
1997.03.12 |
採取時刻 |
1003 |
1048 |
1120 |
0950 |
1036 |
1102 |
1010 |
1055 |
1130 |
1005 |
1050 |
1110 |
0953 |
1028 |
1049 |
0945 |
1018 |
1046 |
0958 |
1040 |
1108 |
1010 |
1105 |
1140 |
1140 |
1231 |
1310 |
1030 |
1110 |
1143 |
1235 |
1314 |
1338 |
1010 |
1051 |
1121 |
天候 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
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 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
気温 (℃) |
13.0 |
14.0 |
15.5 |
13.0 |
12.0 |
12.2 |
18.5 |
19.0 |
19.0 |
23.0 |
23.0 |
23.0 |
32.0 |
30.0 |
31.0 |
21.3 |
20.3 |
22.3 |
13.8 |
13.2 |
14.1 |
5.5 |
6.0 |
6.5 |
6.5 |
6.5 |
6.5 |
-2.0 |
-2.0 |
-2.0 |
5.0 |
6.5 |
7.0 |
4.9 |
5.0 |
3.1 |
水温 (℃) |
7.6 |
5.0 |
4.4 |
12.2 |
6.2 |
4.7 |
19.5 |
5.8 |
4.8 |
25.8 |
5.9 |
4.8 |
26.5 |
5.7 |
4.9 |
21.0 |
12.2 |
5.9 |
17.0 |
9.0 |
5.1 |
12.4 |
10.7 |
5.3 |
8.2 |
6.5 |
5.3 |
3.0 |
3.0 |
3.0 |
2.5 |
3.3 |
4.1 |
3.4 |
3.8 |
3.8 |
採取水深 (m) |
0.5 |
23.4 |
45.8 |
0.5 |
24.6 |
48.2 |
0.5 |
23.0 |
45.0 |
0.5 |
22.3 |
43.6 |
0.5 |
22.8 |
44.6 |
0.5 |
22.0 |
43.0 |
0.5 |
23.7 |
46.3 |
0.5 |
26.6 |
52.1 |
0.5 |
26.3 |
51.5 |
0.5 |
26.8 |
52.5 |
0.5 |
16.0 |
31.0 |
0.5 |
18.9 |
36.8 |
全水深 (m) |
46.80 |
46.80 |
46.80 |
49.20 |
49.20 |
49.20 |
46.00 |
46.00 |
46.00 |
44.60 |
44.60 |
44.60 |
45.60 |
45.60 |
45.60 |
44.00 |
44.00 |
44.00 |
47.30 |
47.30 |
47.30 |
53.10 |
53.10 |
53.10 |
52.50 |
52.50 |
52.50 |
53.50 |
53.50 |
53.50 |
32.00 |
32.00 |
32.00 |
37.80 |
37.80 |
37.80 |
透明度 (m) |
3.10 |
3.10 |
3.10 |
3.00 |
3.00 |
3.00 |
4.00 |
4.00 |
4.00 |
1.70 |
1.70 |
1.70 |
2.70 |
2.70 |
2.70 |
3.80 |
3.80 |
3.80 |
5.50 |
5.50 |
5.50 |
5.50 |
5.50 |
5.50 |
5.20 |
5.20 |
5.20 |
3.60 |
3.60 |
3.60 |
1.70 |
1.70 |
1.70 |
1.70 |
1.70 |
1.70 |
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 |
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 |
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 |
7.6 |
7.2 |
7.1 |
7.8 |
7.4 |
7.1 |
8.4 |
7.2 |
7.0 |
10.1 |
7.1 |
7.0 |
9.7 |
7.1 |
7.0 |
9.1 |
7.1 |
7.0 |
8.4 |
7.1 |
6.9 |
7.6 |
7.2 |
6.8 |
7.3 |
7.0 |
6.7 |
7.3 |
7.3 |
7.2 |
7.4 |
7.2 |
7.2 |
7.2 |
7.1 |
7.0 |
DO (mg/l) |
11.0 |
10.0 |
7.9 |
11.0 |
9.8 |
8.8 |
9.3 |
8.8 |
5.8 |
11.0 |
8.1 |
5.8 |
10.0 |
8.0 |
1.8 |
9.4 |
4.9 |
1.8 |
10.0 |
4.8 |
3.7 |
8.6 |
8.8 |
2.4 |
9.4 |
7.6 |
1.6 |
10.0 |
10.0 |
10.0 |
11.0 |
10.0 |
9.6 |
10.0 |
9.3 |
7.6 |
BOD (mg/l) |
< 0.5 |
< 0.5 |
< 0.5 |
0.7 |
< 0.5 |
< 0.5 |
1.9 |
0.8 |
0.5 |
2.0 |
1.1 |
0.5 |
1.2 |
0.8 |
0.5 |
2.5 |
0.8 |
0.7 |
1.6 |
0.5 |
0.9 |
0.9 |
0.6 |
0.7 |
0.6 |
0.6 |
0.5 |
< 0.5 |
0.6 |
< 0.5 |
0.9 |
0.5 |
< 0.5 |
0.7 |
< 0.5 |
0.5 |
COD (mg/l) |
1.6 |
1.6 |
1.7 |
2.4 |
1.9 |
1.3 |
2.9 |
1.2 |
1.2 |
4.7 |
1.5 |
1.2 |
3.3 |
1.1 |
1.6 |
3.4 |
1.8 |
1.4 |
2.6 |
1.9 |
1.9 |
1.4 |
1.4 |
1.4 |
1.5 |
1.3 |
1.4 |
1.4 |
1.5 |
1.6 |
1.8 |
1.6 |
1.5 |
1.6 |
1.6 |
1.7 |
SS (mg/l) |
1 |
1 |
3 |
1 |
3 |
1 |
1 |
1 |
1 |
9 |
1 |
1 |
3 |
1 |
1 |
2 |
3 |
1 |
1 |
1 |
5 |
1 |
1 |
4 |
1 |
1 |
2 |
1 |
1 |
1 |
4 |
1 |
1 |
2 |
2 |
2 |
大腸菌群数 (MPN/100ml) |
4.5E+00 |
< 2.0E+00 |
< 2.0E+00 |
4.5E+00 |
7.9E+01 |
1.3E+01 |
7.9E+01 |
2.3E+01 |
2.3E+01 |
2.0E+00 |
7.9E+01 |
1.3E+01 |
< 2.0E+00 |
1.3E+01 |
4.9E+01 |
3.3E+01 |
2.2E+02 |
3.3E+01 |
7.9E+02 |
7.9E+02 |
4.9E+01 |
2.4E+02 |
7.9E+01 |
3.3E+01 |
3.3E+01 |
3.3E+01 |
2.0E+00 |
< 2.0E+00 |
4.5E+01 |
4.5E+00 |
2.3E+01 |
7.8E+00 |
2.0E+00 |
4.5E+00 |
2.0E+00 |
4.5E+00 |
全窒素 (mg/l) |
0.82 |
0.82 |
0.75 |
0.48 |
0.65 |
0.72 |
0.77 |
0.74 |
0.83 |
0.40 |
0.78 |
0.83 |
0.32 |
0.86 |
0.93 |
0.48 |
0.73 |
0.84 |
0.55 |
0.69 |
0.90 |
0.46 |
0.51 |
0.91 |
0.54 |
0.59 |
0.86 |
0.59 |
0.56 |
0.59 |
0.54 |
0.52 |
0.55 |
0.61 |
0.64 |
0.61 |
全燐 (mg/l) |
0.008 |
0.008 |
0.012 |
0.012 |
0.017 |
0.009 |
0.019 |
0.010 |
0.010 |
0.015 |
0.010 |
0.008 |
0.008 |
0.004 |
0.015 |
0.020 |
0.016 |
0.011 |
0.009 |
0.011 |
0.013 |
0.006 |
0.011 |
0.016 |
0.008 |
0.012 |
0.013 |
0.007 |
0.005 |
0.008 |
0.004 |
0.003 |
0.004 |
0.011 |
0.010 |
0.013 |
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) |
|
|
|
< 0.005 |
|
|
|
|
|
< 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 |
|
|
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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
テトラクロロエチレン (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,3-ジクロロプロペン (mg/l) |
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チウラム (mg/l) |
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
シマジン (mg/l) |
|
|
|
< 0.0003 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チオベンカルブ (mg/l) |
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ベンゼン (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
セレン (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 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 |
0.2 |
< 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 |
< 0.1 |
クロロフィル-a (ug/l) |
6.2 |
< 0.5 |
< 0.5 |
6.1 |
< 0.5 |
< 0.5 |
10.0 |
< 0.5 |
< 0.5 |
37.0 |
3.6 |
< 0.5 |
12.0 |
< 0.5 |
< 0.5 |
13.0 |
< 0.5 |
< 0.5 |
8.8 |
< 0.5 |
2.4 |
5.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
4.0 |
2.9 |
2.8 |
< 0.5 |
3.0 |
2.5 |
2.0 |
< 0.5 |
< 0.5 |
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 |
> 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) |
0.51 |
0.57 |
0.47 |
0.29 |
0.42 |
0.51 |
0.25 |
0.59 |
0.61 |
< 0.02 |
0.63 |
0.65 |
< 0.02 |
0.59 |
0.51 |
0.12 |
0.55 |
0.62 |
0.22 |
0.59 |
0.50 |
0.27 |
0.34 |
0.54 |
0.34 |
0.34 |
0.64 |
0.38 |
0.40 |
0.36 |
0.41 |
0.42 |
0.44 |
0.44 |
0.47 |
0.48 |