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 |
2001.04.18 |
2001.04.18 |
2001.04.18 |
2001.05.23 |
2001.05.23 |
2001.05.23 |
2001.06.26 |
2001.06.26 |
2001.06.26 |
2001.07.11 |
2001.07.11 |
2001.07.11 |
2001.08.30 |
2001.08.30 |
2001.08.30 |
2001.09.19 |
2001.09.19 |
2001.09.19 |
2001.10.10 |
2001.10.10 |
2001.10.10 |
2001.11.14 |
2001.11.14 |
2001.11.14 |
2001.12.12 |
2001.12.12 |
2001.12.12 |
2002.01.16 |
2002.02.13 |
2002.03.06 |
採取時刻 |
1005 |
1100 |
1120 |
0950 |
1045 |
1105 |
1000 |
1055 |
1130 |
0930 |
1020 |
1040 |
1005 |
1055 |
1115 |
1004 |
1040 |
1117 |
1020 |
1110 |
1130 |
1015 |
1105 |
1125 |
0950 |
1035 |
1055 |
1030 |
1230 |
1120 |
天候 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
雨 |
雨 |
雨 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
雨 |
雨 |
雨 |
雪 |
雪 |
雪 |
雪 |
雪 |
雪 |
曇り |
晴れ |
雪 |
気温 (℃) |
18.0 |
20.0 |
20.7 |
18.5 |
19.4 |
19.8 |
19.4 |
19.9 |
20.6 |
21.4 |
23.5 |
24.0 |
19.2 |
19.7 |
19.8 |
18.2 |
18.8 |
19.3 |
10.6 |
11.1 |
11.2 |
1.5 |
1.5 |
1.5 |
0.9 |
1.0 |
1.0 |
1.7 |
-1.9 |
0.8 |
水温 (℃) |
8.0 |
9.0 |
8.8 |
12.6 |
9.8 |
8.7 |
18.5 |
10.5 |
9.5 |
20.2 |
16.6 |
14.4 |
22.0 |
16.0 |
12.4 |
17.9 |
14.7 |
11.1 |
13.2 |
12.9 |
12.8 |
5.0 |
5.0 |
4.8 |
2.0 |
2.1 |
1.9 |
0.8 |
1.8 |
2.0 |
流量 (m3/s) |
135.48 |
135.48 |
135.48 |
27.36 |
27.36 |
27.36 |
19.06 |
19.06 |
19.06 |
29.27 |
29.27 |
29.27 |
13.51 |
13.51 |
13.51 |
26.20 |
26.20 |
26.20 |
13.43 |
13.43 |
13.43 |
8.44 |
8.44 |
8.44 |
14.95 |
14.95 |
14.95 |
70.00 |
9.02 |
20.67 |
採取水深 (m) |
0.5 |
30.0 |
61.0 |
0.5 |
30.0 |
60.0 |
0.5 |
25.0 |
52.0 |
0.5 |
25.0 |
48.0 |
0.5 |
25.0 |
46.0 |
0.5 |
20.0 |
47.7 |
0.5 |
25.0 |
46.0 |
0.5 |
25.0 |
46.0 |
0.5 |
20.0 |
40.0 |
0.5 |
0.5 |
0.5 |
全水深 (m) |
62.0 |
62.0 |
62.0 |
61.0 |
61.0 |
61.0 |
53.0 |
53.0 |
53.0 |
49.0 |
49.0 |
49.0 |
47.0 |
47.0 |
47.0 |
48.7 |
48.7 |
48.7 |
47.0 |
47.0 |
47.0 |
47.0 |
47.0 |
47.0 |
41.0 |
41.0 |
41.0 |
|
|
|
透明度 (m) |
0.80 |
|
|
1.50 |
|
|
1.10 |
|
|
1.00 |
|
|
1.00 |
|
|
0.40 |
|
|
1.80 |
|
|
1.30 |
|
|
1.50 |
|
|
|
|
|
外観 |
白濁 |
白濁 |
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 |
茶濁 |
茶濁 |
無色澄明 |
濃白濁 |
濃白濁 |
濃白濁 |
濃白濁 |
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 |
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 |
6.8 |
6.8 |
6.8 |
6.8 |
7.3 |
6.8 |
6.7 |
7.0 |
6.8 |
6.7 |
7.0 |
6.6 |
6.5 |
7.2 |
7.0 |
6.6 |
7.2 |
7.2 |
7.0 |
7.0 |
7.1 |
7.0 |
7.0 |
7.0 |
7.1 |
6.9 |
6.9 |
6.8 |
DO (mg/l) |
11.8 |
11.6 |
11.9 |
11.1 |
11.1 |
10.0 |
9.8 |
9.4 |
7.9 |
9.2 |
8.6 |
7.3 |
7.6 |
7.4 |
2.1 |
8.6 |
8.3 |
1.2 |
9.2 |
9.3 |
8.5 |
10.9 |
11.0 |
10.9 |
12.5 |
12.3 |
12.3 |
12.7 |
12.9 |
12.5 |
BOD (mg/l) |
< 0.5 |
0.5 |
< 0.5 |
0.6 |
< 0.5 |
< 0.5 |
0.9 |
< 0.5 |
< 0.5 |
0.7 |
< 0.5 |
< 0.5 |
0.9 |
0.7 |
1.6 |
0.7 |
< 0.5 |
0.9 |
0.6 |
0.5 |
0.5 |
0.6 |
0.5 |
0.5 |
0.5 |
< 0.5 |
< 0.5 |
0.8 |
0.5 |
0.6 |
COD (mg/l) |
1.7 |
1.9 |
1.9 |
1.3 |
0.9 |
0.9 |
3.4 |
1.5 |
1.5 |
2.8 |
3.8 |
3.4 |
2.4 |
2.8 |
3.9 |
3.4 |
2.9 |
3.7 |
1.8 |
1.9 |
2.4 |
2.1 |
2.2 |
2.0 |
1.4 |
1.3 |
1.3 |
1.7 |
1.8 |
1.3 |
SS (mg/l) |
9 |
6 |
11 |
2 |
2 |
2 |
3 |
4 |
1 |
6 |
15 |
12 |
5 |
13 |
65 |
20 |
15 |
50 |
4 |
4 |
12 |
15 |
4 |
5 |
3 |
3 |
3 |
2 |
3 |
4 |
大腸菌群数 (MPN/100ml) |
3.3E+01 |
1.3E+02 |
4.9E+01 |
1.3E+01 |
7.8E+00 |
4.5E+00 |
7.9E+01 |
4.9E+01 |
1.3E+02 |
4.9E+02 |
3.3E+02 |
3.3E+02 |
7.9E+02 |
4.9E+02 |
1.3E+03 |
7.9E+02 |
4.9E+02 |
2.2E+02 |
3.3E+02 |
4.9E+02 |
2.4E+02 |
1.7E+02 |
1.7E+02 |
3.3E+02 |
7.9E+01 |
4.9E+02 |
1.3E+02 |
2.4E+03 |
7.9E+02 |
1.7E+02 |
全窒素 (mg/l) |
|
|
|
0.31 |
0.27 |
0.32 |
|
|
|
0.46 |
0.49 |
0.48 |
|
|
|
0.35 |
0.44 |
0.38 |
|
|
|
0.30 |
0.26 |
0.25 |
|
|
|
0.51 |
|
0.51 |
全燐 (mg/l) |
|
|
|
0.008 |
0.004 |
0.006 |
|
|
|
0.016 |
0.025 |
0.022 |
|
|
|
0.039 |
0.025 |
0.056 |
|
|
|
0.018 |
0.008 |
0.009 |
|
|
|
0.010 |
|
0.009 |
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 |
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チウラム (mg/l) |
|
|
|
< 0.0006 |
|
|
|
|
|
< 0.0006 |
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
シマジン (mg/l) |
|
|
|
< 0.0003 |
|
|
|
|
|
< 0.0003 |
|
|
< 0.0003 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チオベンカルブ (mg/l) |
|
|
|
< 0.002 |
|
|
|
|
|
< 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 |
|
|
|
7 |
< 2 |
< 2 |
|
|
|
< 2 |
< 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 |
20.0 |
20.0 |
> 30.0 |
17.0 |
13.0 |
17.0 |
27.0 |
10.0 |
> 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) |
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.19 |
0.21 |
0.22 |
|
|
|
0.22 |
0.25 |
0.22 |
|
|
|
0.21 |
0.21 |
0.15 |
|
|
|
0.14 |
0.10 |
0.12 |
|
|
|
0.18 |
|
0.27 |