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 |
2003.04.23 |
2003.04.23 |
2003.04.23 |
2003.05.27 |
2003.05.27 |
2003.05.27 |
2003.06.18 |
2003.06.18 |
2003.06.18 |
2003.07.09 |
2003.07.09 |
2003.07.09 |
2003.08.20 |
2003.08.20 |
2003.08.20 |
2003.09.17 |
2003.09.17 |
2003.09.17 |
2003.10.08 |
2003.10.08 |
2003.10.08 |
2003.11.12 |
2003.11.12 |
2003.11.12 |
2003.12.10 |
2003.12.10 |
2003.12.10 |
2004.01.07 |
2004.01.07 |
2004.01.07 |
2004.02.04 |
2004.03.03 |
採取時刻 |
0940 |
1040 |
1100 |
0950 |
1045 |
1105 |
0940 |
1030 |
1050 |
0955 |
1035 |
1055 |
0900 |
0940 |
1000 |
0935 |
1025 |
1045 |
0950 |
1035 |
1055 |
0950 |
1035 |
1100 |
1001 |
1115 |
1140 |
0940 |
1035 |
1055 |
1020 |
0930 |
天候 |
雨 |
雨 |
雨 |
曇り |
曇り |
曇り |
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 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
雪 |
曇り |
気温 (℃) |
5.3 |
5.7 |
5.8 |
14.5 |
16.1 |
16.6 |
23.8 |
24.3 |
24.5 |
15.8 |
16.7 |
17.1 |
19.8 |
20 |
20 |
18.5 |
20.7 |
21.2 |
12.5 |
14.2 |
14.4 |
8 |
8.3 |
8.5 |
0.6 |
0.5 |
0.5 |
-5.5 |
-4 |
-3.2 |
-3 |
-4.5 |
水温 (℃) |
6.8 |
6.2 |
6.1 |
12.8 |
9.2 |
8.5 |
20 |
8.8 |
8 |
16 |
12.8 |
8.3 |
19.5 |
14.8 |
13.3 |
18.8 |
17.5 |
13.2 |
14 |
12.6 |
8.5 |
10.5 |
10.2 |
10 |
4 |
5.2 |
5.2 |
2.3 |
3 |
3.3 |
0.8 |
0.8 |
流量 (m3/s) |
109.98 |
109.98 |
109.98 |
23.81 |
23.81 |
23.81 |
4.9 |
4.9 |
4.9 |
29.76 |
29.76 |
29.76 |
13.6 |
13.6 |
13.6 |
25.31 |
25.31 |
25.31 |
16.94 |
16.94 |
16.94 |
19.15 |
19.15 |
19.15 |
20.03 |
20.03 |
20.03 |
23.81 |
23.81 |
23.81 |
5.41 |
20.93 |
採取水深 (m) |
0.5 |
30 |
60 |
0.5 |
30 |
59 |
0.5 |
25 |
52 |
0.5 |
25 |
46 |
0.5 |
25 |
48 |
0.5 |
20 |
44 |
0.5 |
25 |
45 |
0.5 |
20 |
44 |
0.5 |
25 |
50 |
0.5 |
30 |
58 |
0.5 |
0.5 |
全水深 (m) |
61 |
61 |
61 |
60 |
60 |
60 |
53 |
53 |
53 |
47 |
47 |
47 |
49 |
49 |
49 |
45 |
45 |
45 |
46 |
46 |
46 |
45 |
45 |
45 |
51 |
51 |
51 |
59 |
59 |
59 |
59 |
59 |
透明度 (m) |
0.8 |
|
|
2.5 |
|
|
2.6 |
|
|
1.3 |
|
|
2 |
|
|
2.1 |
|
|
2 |
|
|
3 |
|
|
3 |
|
|
3 |
|
|
|
|
外観 |
微白濁 |
微白濁 |
白濁 |
無色澄明 |
無色澄明 |
微白濁 |
無色澄明 |
無色澄明 |
白濁 |
微白濁 |
白濁 |
白濁 |
無色澄明 |
微白濁 |
微白濁 |
無色澄明 |
微白濁 |
微白濁 |
無色澄明 |
無色澄明 |
微白濁 |
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 |
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 |
pH |
6.8 |
6.7 |
6.7 |
6.8 |
6.7 |
6.6 |
7.1 |
6.7 |
6.6 |
6.9 |
6.8 |
6.8 |
7.1 |
6.7 |
6.6 |
7 |
6.7 |
6.5 |
7 |
7 |
6.9 |
6.8 |
6.8 |
6.8 |
7 |
6.8 |
6.9 |
6.9 |
6.9 |
6.8 |
6.9 |
6.8 |
DO (mg/l) |
11.7 |
11.7 |
11.8 |
10.7 |
10.6 |
10.4 |
9.8 |
10.1 |
9.1 |
9.6 |
8.6 |
8.1 |
8.8 |
7.9 |
3.8 |
9.2 |
9.1 |
5.1 |
9.5 |
8.9 |
7.5 |
10.2 |
10.2 |
10.1 |
11.6 |
11.7 |
11.4 |
13.2 |
11.9 |
10.4 |
12.1 |
11.8 |
BOD (mg/l) |
0.8 |
< 0.5 |
< 0.5 |
1 |
0.6 |
< 0.5 |
1.9 |
< 0.5 |
< 0.5 |
0.8 |
0.9 |
< 0.5 |
0.6 |
0.5 |
0.5 |
0.9 |
0.7 |
0.5 |
0.7 |
1 |
0.9 |
1.8 |
0.8 |
0.8 |
0.6 |
0.5 |
0.5 |
1.1 |
1 |
0.7 |
1.1 |
< 0.5 |
COD (mg/l) |
1.8 |
1.6 |
1.8 |
1.8 |
1.3 |
1.4 |
2.6 |
0.8 |
1 |
2.5 |
3.2 |
2 |
2.6 |
2.3 |
1.7 |
2.4 |
2.7 |
2 |
1.7 |
2 |
2 |
2.4 |
1.9 |
1.9 |
1.8 |
1.7 |
1.6 |
1.7 |
1.6 |
1.4 |
2.1 |
1.6 |
SS (mg/l) |
7 |
10 |
10 |
1 |
2 |
3 |
2 |
1 |
4 |
4 |
8 |
4 |
2 |
4 |
6 |
3 |
5 |
6 |
2 |
4 |
6 |
3 |
3 |
5 |
2 |
3 |
2 |
1 |
1 |
1 |
1 |
3 |
大腸菌群数 (MPN/100ml) |
2.3E+01 |
7.0E+01 |
7.9E+00 |
1.3E+01 |
1.3E+02 |
3.3E+01 |
1.7E+01 |
4.5E+00 |
2.0E+00 |
1.7E+02 |
7.9E+02 |
2.3E+01 |
7.9E+01 |
4.5E+00 |
1.1E+01 |
7.9E+02 |
7.9E+02 |
2.2E+02 |
4.9E+02 |
2.2E+02 |
1.4E+02 |
4.9E+01 |
1.1E+02 |
4.9E+01 |
1.3E+02 |
7.9E+01 |
7.9E+01 |
3.3E+01 |
1.3E+01 |
4.9E+01 |
1.7E+01 |
3.3E+02 |
全窒素 (mg/l) |
|
|
|
0.44 |
0.37 |
0.39 |
0.46 |
0.28 |
0.32 |
0.4 |
0.45 |
0.33 |
0.26 |
0.32 |
0.38 |
0.34 |
0.41 |
0.45 |
0.25 |
0.28 |
0.32 |
0.4 |
0.23 |
0.24 |
0.56 |
0.34 |
0.29 |
0.31 |
0.27 |
0.26 |
0.5 |
0.43 |
全燐 (mg/l) |
|
|
|
0.009 |
0.008 |
0.009 |
0.01 |
0.006 |
0.011 |
0.015 |
0.021 |
0.014 |
0.012 |
0.013 |
0.015 |
0.014 |
0.015 |
0.014 |
0.01 |
0.013 |
0.015 |
0.011 |
0.01 |
0.012 |
0.014 |
0.013 |
0.015 |
0.011 |
0.011 |
0.012 |
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) |
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
|
< 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 |
< 0.1 |
< 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 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
< 2 |
透視度 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
ほう素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.21 |
0.21 |
0.22 |
|
|
|
0.19 |
0.2 |
0.21 |
|
|
|
0.14 |
0.16 |
0.25 |
|
|
|
0.1 |
0.12 |
0.11 |
|
|
|
0.2 |
0.2 |
0.2 |
|
0.32 |