測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
50101 |
湯田ダム貯水池 |
L‐9(ダムサイト) |
A |
測定結果
採取年月日 |
2005.04.26 |
2005.04.26 |
2005.04.26 |
2005.05.18 |
2005.05.18 |
2005.05.18 |
2005.06.08 |
2005.06.08 |
2005.06.08 |
2005.07.26 |
2005.07.26 |
2005.07.26 |
2005.08.29 |
2005.08.29 |
2005.08.29 |
2005.09.14 |
2005.09.14 |
2005.09.14 |
2005.10.12 |
2005.10.12 |
2005.10.12 |
2005.11.21 |
2005.11.21 |
2005.11.21 |
2005.12.14 |
2005.12.14 |
2005.12.14 |
2006.01.11 |
2006.02.01 |
2006.03.02 |
採取時刻 |
1010 |
1125 |
1125 |
0950 |
1040 |
1100 |
1010 |
1100 |
1120 |
0940 |
1010 |
1030 |
0940 |
1032 |
1050 |
0950 |
1026 |
1045 |
0940 |
1027 |
1047 |
0940 |
1025 |
1045 |
1320 |
1354 |
1410 |
1020 |
1040 |
1130 |
天候 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
雨 |
雨 |
雨 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
雪 |
雪 |
雪 |
雪 |
雪 |
曇り |
気温 (℃) |
11.4 |
12 |
12.4 |
9.5 |
10.7 |
11.2 |
15.2 |
15.3 |
15.4 |
21.4 |
21.5 |
21.6 |
24.2 |
24.8 |
25 |
19.8 |
20.5 |
20.9 |
14.7 |
15.4 |
15.5 |
3.8 |
5.2 |
5.7 |
-2.5 |
-2.5 |
-2.5 |
-2.8 |
-8 |
0.6 |
水温 (℃) |
6.2 |
5.6 |
5.5 |
8.5 |
7 |
6.5 |
14 |
8.7 |
8.2 |
18.8 |
13.3 |
12.7 |
22 |
14.1 |
10.7 |
21.2 |
14.5 |
13.6 |
15.5 |
14.3 |
10.9 |
5.8 |
5.4 |
5.2 |
1 |
2 |
2.3 |
0.8 |
0.5 |
1.5 |
流量 (m3/s) |
214.25 |
214.25 |
214.25 |
72.72 |
72.72 |
72.72 |
19.29 |
19.29 |
19.29 |
20.02 |
20.02 |
20.02 |
6.34 |
6.34 |
6.34 |
16.92 |
16.92 |
16.92 |
17.41 |
17.41 |
17.41 |
23.12 |
23.12 |
23.12 |
20.95 |
20.95 |
20.95 |
12.01 |
5.86 |
21.16 |
採取水深 (m) |
0.5 |
30 |
57 |
0.5 |
30 |
60 |
0.5 |
30 |
57 |
0.5 |
20 |
43 |
0.5 |
25 |
47 |
0.5 |
25 |
46 |
0.5 |
25 |
46 |
0.5 |
25 |
48 |
0.5 |
25 |
48 |
0.5 |
0.5 |
0.5 |
全水深 (m) |
58 |
58 |
58 |
61 |
61 |
61 |
58 |
58 |
58 |
44 |
44 |
44 |
48 |
48 |
48 |
47 |
47 |
47 |
47 |
47 |
47 |
49 |
49 |
49 |
49 |
49 |
49 |
|
|
|
透明度 (m) |
1 |
|
|
1.5 |
|
|
3.5 |
|
|
2.5 |
|
|
2 |
|
|
2 |
|
|
2 |
|
|
2 |
|
|
2 |
|
|
|
|
|
外観 |
淡灰色 |
淡灰色 |
淡灰色 |
淡灰色 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
白濁 |
白濁 |
無色澄明 |
淡灰色 |
淡灰色 |
淡灰色 |
淡灰色 |
淡灰色 |
無色澄明 |
淡灰色 |
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 |
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 |
pH |
6.7 |
6.7 |
6.7 |
6.7 |
6.7 |
6.7 |
6.9 |
6.7 |
6.7 |
7.1 |
6.8 |
6.8 |
7.4 |
6.6 |
6.5 |
7.2 |
6.9 |
6.6 |
7.1 |
6.9 |
6.6 |
6.9 |
7 |
6.9 |
7 |
7 |
7 |
6.9 |
6.8 |
6.8 |
DO (mg/l) |
10 |
9.4 |
6.5 |
9.4 |
8.5 |
6.3 |
10 |
10.4 |
10 |
9 |
10 |
9.4 |
8.9 |
8.5 |
3.6 |
9.2 |
7.9 |
7.5 |
10 |
9.1 |
0.9 |
11 |
11 |
11 |
12 |
12 |
11 |
13 |
14 |
13 |
BOD (mg/l) |
0.9 |
0.7 |
0.5 |
0.8 |
0.8 |
0.8 |
0.8 |
0.6 |
0.5 |
0.9 |
1 |
0.9 |
0.9 |
0.5 |
0.6 |
1.6 |
1.4 |
0.7 |
1 |
1 |
1 |
1 |
0.7 |
0.9 |
0.8 |
0.8 |
0.8 |
1 |
1.9 |
0.8 |
COD (mg/l) |
1.6 |
1.5 |
1.5 |
1.4 |
1.4 |
1.4 |
1.8 |
1.5 |
1.2 |
1.9 |
2.3 |
2.1 |
2.6 |
2.1 |
2.2 |
3 |
2.8 |
2.2 |
2.7 |
2.6 |
2.5 |
2 |
1.6 |
1.8 |
1.3 |
1.3 |
1.3 |
2.3 |
3.3 |
2.2 |
SS (mg/l) |
4 |
6 |
6 |
3 |
3 |
3 |
1 |
1 |
2 |
1 |
7 |
8 |
2 |
5 |
9 |
2 |
6 |
3 |
2 |
4 |
11 |
2 |
2 |
2 |
1 |
1 |
1 |
2 |
5 |
1 |
大腸菌群数 (MPN/100ml) |
3.3E+01 |
4.9E+02 |
4.9E+01 |
3.3E+01 |
1.3E+01 |
1.3E+01 |
< 1.8E+00 |
1.3E+01 |
4.5E+00 |
4.9E+01 |
1.1E+02 |
1.1E+02 |
4.9E+01 |
1.7E+01 |
4.9E+01 |
7.9E+02 |
4.9E+02 |
4.9E+02 |
7.9E+02 |
7.9E+02 |
4.9E+01 |
2.4E+02 |
1.3E+02 |
3.3E+02 |
3.3E+01 |
2.3E+01 |
3.3E+01 |
7.8E+00 |
4.5E+00 |
4.9E+02 |
全窒素 (mg/l) |
0.43 |
0.37 |
0.41 |
0.27 |
0.31 |
0.27 |
0.33 |
0.28 |
0.31 |
0.34 |
0.34 |
0.33 |
0.4 |
0.37 |
0.44 |
0.4 |
0.37 |
0.38 |
0.37 |
0.38 |
0.48 |
0.38 |
0.3 |
0.31 |
0.29 |
0.29 |
0.32 |
0.59 |
1.02 |
0.61 |
全燐 (mg/l) |
0.012 |
0.012 |
0.01 |
0.008 |
0.01 |
0.01 |
0.006 |
0.006 |
0.006 |
0.007 |
0.013 |
0.012 |
0.012 |
0.013 |
0.02 |
0.016 |
0.013 |
0.012 |
0.012 |
0.015 |
0.016 |
0.008 |
0.007 |
0.01 |
0.008 |
0.007 |
0.008 |
0.01 |
0.011 |
0.007 |
全亜鉛 (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.01 |
|
< 0.01 |
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) |
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
< 0.02 |
砒素 (mg/l) |
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
0.001 |
|
|
|
|
|
< 0.001 |
|
< 0.001 |
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 |
|
|
|
|
|
|
|
|
|
|
|
< 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) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
|
|
|
亜硝酸性窒素 (mg/l) |
|
|
|
< 0.01 |
> 0.01 |
< 0.01 |
|
|
|
< 0.01 |
< 0.01 |
< 0.01 |
|
|
|
< 0.01 |
< 0.01 |
< 0.01 |
|
|
|
< 0.01 |
< 0.01 |
< 0.01 |
|
|
|
< 0.01 |
|
< 0.01 |
銅 (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.08 |
|
< 0.05 |
亜鉛 (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.01 |
|
< 0.01 |
鉄(溶解性) (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.2 |
|
0.4 |
ふっ素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
クロロフィル-a (ug/l) |
|
|
|
< 2 |
|
< 2 |
|
|
|
2 |
|
< 2 |
|
|
|
5 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
|
|
|
透視度 |
85 |
70 |
65 |
90 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
40 |
35 |
> 100 |
80 |
60 |
80 |
73 |
70 |
> 100 |
73 |
48 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
ほう素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.23 |
0.21 |
0.24 |
|
|
|
0.26 |
0.28 |
0.28 |
|
|
|
0.19 |
0.24 |
0.26 |
|
|
|
0.24 |
0.22 |
0.22 |
|
|
|
0.30 |
|
0.45 |