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 |
2000.04.26 |
2000.04.26 |
2000.04.26 |
2000.05.17 |
2000.05.17 |
2000.05.17 |
2000.06.14 |
2000.06.14 |
2000.06.14 |
2000.07.12 |
2000.07.12 |
2000.07.12 |
2000.08.09 |
2000.08.09 |
2000.08.09 |
2000.09.20 |
2000.09.20 |
2000.09.20 |
2000.10.11 |
2000.10.11 |
2000.10.11 |
2000.11.15 |
2000.11.15 |
2000.11.15 |
2000.12.13 |
2000.12.13 |
2000.12.13 |
2001.01.17 |
2001.01.17 |
2001.01.17 |
2001.02.14 |
2001.02.14 |
2001.02.14 |
2001.03.07 |
2001.03.07 |
2001.03.07 |
採取時刻 |
1000 |
1041 |
1109 |
1000 |
1038 |
1059 |
1000 |
1038 |
1057 |
1000 |
1035 |
1059 |
1000 |
1045 |
1058 |
1100 |
1140 |
1155 |
1000 |
1030 |
1059 |
1000 |
1041 |
1059 |
1000 |
1038 |
1058 |
1100 |
1140 |
1155 |
1200 |
1237 |
1255 |
1100 |
1131 |
1154 |
天候 |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
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 |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
雪 |
雪 |
気温 (℃) |
17.6 |
18.0 |
17.9 |
15.0 |
15.1 |
15.1 |
23.0 |
23.0 |
23.0 |
26.0 |
25.5 |
25.0 |
30.0 |
30.0 |
30.0 |
27.5 |
27.8 |
27.7 |
22.3 |
22.3 |
22.3 |
10.8 |
11.5 |
11.5 |
1.6 |
1.7 |
1.5 |
-2.0 |
0.0 |
0.0 |
-2.2 |
-1.0 |
-1.0 |
4.2 |
1.0 |
0.5 |
水温 (℃) |
10.7 |
7.6 |
5.5 |
16.0 |
8.5 |
4.3 |
21.0 |
12.0 |
6.5 |
23.7 |
9.9 |
6.6 |
28.7 |
10.0 |
7.0 |
23.5 |
10.0 |
6.5 |
19.0 |
10.5 |
5.0 |
11.8 |
9.8 |
6.0 |
6.7 |
6.4 |
5.3 |
2.5 |
3.5 |
5.0 |
0.1 |
3.8 |
3.7 |
0.2 |
4.1 |
4.1 |
流量 (m3/s) |
36.02 |
36.02 |
36.02 |
53.30 |
53.30 |
53.30 |
24.43 |
24.43 |
24.43 |
22.75 |
22.75 |
22.75 |
32.35 |
32.35 |
32.35 |
20.12 |
20.12 |
20.12 |
7.70 |
7.70 |
7.70 |
7.97 |
7.97 |
7.97 |
3.32 |
3.32 |
3.32 |
7.40 |
7.40 |
7.40 |
8.63 |
8.63 |
8.63 |
27.62 |
27.62 |
27.62 |
採取水深 (m) |
0.5 |
26.1 |
51.2 |
0.5 |
29.3 |
58.5 |
0.5 |
28.1 |
55.2 |
0.5 |
22.2 |
43.4 |
0.5 |
21.8 |
42.6 |
0.5 |
22.5 |
44.0 |
0.5 |
22.7 |
44.4 |
0.5 |
27.7 |
54.4 |
0.5 |
28.0 |
55.0 |
0.5 |
24.8 |
48.6 |
0.5 |
24.0 |
47.0 |
0.5 |
22.0 |
43.0 |
全水深 (m) |
52.2 |
52.2 |
52.2 |
59.5 |
59.5 |
59.5 |
56.2 |
56.2 |
56.2 |
44.4 |
44.4 |
44.4 |
43.6 |
43.6 |
43.6 |
45.0 |
45.0 |
45.0 |
45.4 |
45.4 |
45.4 |
55.4 |
55.4 |
55.4 |
56.0 |
56.0 |
56.0 |
49.6 |
49.6 |
49.6 |
48.0 |
48.0 |
48.0 |
44.0 |
44.0 |
44.0 |
透明度 (m) |
1.40 |
|
|
1.50 |
|
|
2.00 |
|
|
3.50 |
|
|
2.60 |
|
|
3.00 |
|
|
1.90 |
|
|
4.20 |
|
|
3.80 |
|
|
2.40 |
|
|
2.00 |
|
|
2.00 |
|
|
外観 |
無色澄明 |
茶色 |
茶色 |
微茶濁 |
微茶濁 |
微茶濁 |
微茶濁 |
微茶濁 |
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 |
微黄緑色 |
無色澄明 |
無色澄明 |
微黄緑色 |
無色澄明 |
白濁 |
無色澄明 |
無色澄明 |
白濁 |
無色澄明 |
無色澄明 |
白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
白濁 |
無色澄明 |
無色澄明 |
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 |
pH |
7.5 |
7.1 |
7.0 |
9.0 |
6.8 |
6.7 |
8.9 |
7.1 |
7.0 |
9.4 |
7.1 |
7.0 |
9.8 |
6.8 |
6.6 |
8.8 |
6.7 |
6.7 |
9.0 |
6.8 |
6.8 |
7.4 |
7.0 |
6.7 |
7.2 |
7.0 |
6.7 |
7.5 |
7.4 |
7.4 |
7.2 |
7.1 |
6.9 |
7.1 |
7.0 |
6.9 |
DO (mg/l) |
11.9 |
11.0 |
10.3 |
13.3 |
10.7 |
8.9 |
11.1 |
8.7 |
5.6 |
11.2 |
8.8 |
4.2 |
12.1 |
8.6 |
1.3 |
9.2 |
7.2 |
0.9 |
10.5 |
6.4 |
1.4 |
9.1 |
6.0 |
0.8 |
9.8 |
7.0 |
0.7 |
13.5 |
11.3 |
10.1 |
13.8 |
10.4 |
3.8 |
12.3 |
7.7 |
2.6 |
BOD (mg/l) |
< 0.5 |
< 0.5 |
< 0.5 |
1.9 |
< 0.5 |
< 0.5 |
0.6 |
< 0.5 |
0.5 |
0.8 |
0.5 |
< 0.5 |
1.6 |
< 0.5 |
0.5 |
1.1 |
0.5 |
0.5 |
1.4 |
< 0.5 |
0.5 |
0.6 |
0.6 |
1.1 |
0.7 |
< 0.5 |
< 0.5 |
0.6 |
< 0.5 |
< 0.5 |
0.7 |
0.5 |
0.8 |
0.8 |
< 0.5 |
1.2 |
COD (mg/l) |
1.7 |
2.2 |
2.1 |
3.2 |
2.6 |
1.8 |
2.5 |
1.9 |
1.7 |
2.1 |
1.8 |
1.3 |
4.1 |
1.9 |
1.9 |
4.1 |
1.8 |
1.8 |
4.9 |
1.7 |
1.7 |
2.0 |
1.9 |
2.8 |
1.9 |
1.6 |
2.2 |
1.7 |
1.7 |
1.8 |
1.3 |
1.5 |
2.3 |
1.2 |
1.5 |
2.8 |
SS (mg/l) |
1 |
5 |
4 |
5 |
2 |
2 |
3 |
1 |
1 |
1 |
1 |
1 |
2 |
1 |
< 1 |
3 |
2 |
1 |
5 |
3 |
4 |
1 |
1 |
11 |
1 |
1 |
3 |
2 |
1 |
3 |
1 |
1 |
5 |
1 |
1 |
8 |
大腸菌群数 (MPN/100ml) |
2.3E+01 |
1.1E+02 |
1.1E+02 |
4.9E+01 |
7.9E+02 |
2.3E+01 |
3.3E+01 |
1.3E+01 |
4.5E+00 |
2.0E+00 |
7.9E+02 |
4.9E+01 |
< 1.8E+00 |
1.1E+03 |
4.9E+02 |
1.1E+04 |
4.9E+02 |
2.4E+02 |
< 1.8E+00 |
7.9E+02 |
1.7E+04 |
2.4E+02 |
1.3E+02 |
7.9E+01 |
1.7E+01 |
2.3E+01 |
7.8E+00 |
1.3E+02 |
1.7E+01 |
1.7E+01 |
3.3E+01 |
< 1.8E+00 |
4.5E+00 |
< 1.8E+00 |
2.0E+00 |
7.9E+01 |
全窒素 (mg/l) |
0.63 |
0.76 |
0.74 |
0.51 |
0.81 |
0.76 |
0.25 |
0.67 |
0.83 |
0.28 |
0.69 |
0.84 |
0.34 |
0.72 |
0.87 |
0.40 |
0.88 |
0.93 |
0.54 |
0.79 |
0.88 |
0.41 |
0.55 |
1.07 |
0.65 |
0.56 |
1.03 |
0.60 |
0.54 |
0.58 |
0.65 |
0.77 |
1.32 |
0.69 |
0.61 |
1.07 |
全燐 (mg/l) |
0.010 |
0.035 |
0.023 |
0.018 |
0.039 |
0.016 |
0.008 |
0.021 |
0.022 |
0.007 |
0.012 |
0.011 |
0.013 |
0.014 |
0.018 |
0.022 |
0.013 |
0.016 |
0.017 |
0.016 |
0.016 |
0.007 |
0.012 |
0.037 |
0.007 |
0.007 |
0.020 |
0.011 |
0.009 |
0.015 |
0.011 |
0.006 |
0.032 |
0.007 |
0.005 |
0.029 |
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) |
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
砒素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ふっ素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
アンモニア性窒素 (mg/l) |
< 0.1 |
< 0.1 |
< 0.1 |
< 0.1 |
< 0.1 |
0.2 |
< 0.1 |
< 0.1 |
0.3 |
< 0.1 |
< 0.1 |
0.1 |
< 0.1 |
< 0.1 |
0.1 |
< 0.1 |
< 0.1 |
0.4 |
< 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 |
0.5 |
< 0.1 |
< 0.1 |
0.4 |
クロロフィル-a (ug/l) |
2 |
< 2 |
< 2 |
19 |
< 2 |
< 2 |
17 |
< 2 |
< 2 |
< 2 |
< 2 |
< 2 |
9 |
< 2 |
< 2 |
13 |
< 2 |
< 2 |
18 |
< 2 |
< 2 |
4 |
< 2 |
< 2 |
2 |
< 2 |
< 2 |
4 |
7 |
5 |
< 2 |
4 |
2 |
< 2 |
2 |
< 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 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
ほう素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
0.58 |
0.67 |
0.61 |
0.22 |
0.56 |
0.50 |
0.07 |
0.51 |
0.46 |
0.11 |
0.63 |
0.33 |
0.03 |
0.60 |
0.69 |
0.09 |
0.63 |
0.46 |
0.13 |
0.67 |
0.64 |
0.32 |
0.41 |
0.69 |
0.39 |
0.39 |
0.55 |
0.46 |
0.36 |
0.36 |
0.47 |
0.41 |
0.29 |
0.25 |
0.25 |
0.20 |