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 |
1995.04.26 |
1995.04.26 |
1995.04.26 |
1995.05.17 |
1995.05.17 |
1995.05.17 |
1995.06.14 |
1995.06.14 |
1995.06.14 |
1995.07.20 |
1995.07.20 |
1995.07.20 |
1995.08.23 |
1995.08.23 |
1995.08.23 |
1995.09.20 |
1995.09.20 |
1995.09.20 |
1995.10.24 |
1995.10.24 |
1995.10.24 |
1995.11.17 |
1995.11.17 |
1995.11.17 |
1995.12.13 |
1995.12.13 |
1995.12.13 |
1996.01.17 |
1996.01.17 |
1996.01.17 |
1996.02.14 |
1996.02.14 |
1996.02.14 |
1996.03.13 |
1996.03.13 |
1996.03.13 |
採取時刻 |
1035 |
1110 |
1130 |
1040 |
1112 |
1124 |
1005 |
1042 |
1100 |
1010 |
1050 |
1110 |
1000 |
1050 |
1110 |
1100 |
1124 |
1144 |
1002 |
1036 |
1048 |
1020 |
1053 |
1105 |
1020 |
1110 |
1125 |
1000 |
1050 |
1110 |
1000 |
1050 |
1115 |
1020 |
1120 |
1150 |
天候 |
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 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
雪 |
雪 |
雪 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
気温 (℃) |
12.2 |
13.7 |
13.8 |
9.4 |
9.7 |
9.8 |
16.7 |
16.9 |
17.0 |
18.7 |
18.8 |
18.9 |
23.6 |
24.6 |
25.0 |
17.3 |
17.9 |
18.4 |
12.8 |
13.6 |
13.8 |
9.4 |
10.0 |
10.3 |
-1.1 |
-1.1 |
-1.1 |
-3.2 |
-2.9 |
-2.8 |
4.7 |
4.7 |
4.7 |
2.5 |
3.1 |
3.2 |
水温 (℃) |
9.8 |
5.5 |
5.5 |
14.8 |
10.0 |
9.0 |
14.7 |
10.5 |
9.1 |
20.0 |
13.9 |
13.8 |
23.4 |
18.0 |
17.2 |
19.6 |
17.0 |
16.8 |
16.3 |
14.7 |
14.5 |
8.8 |
9.1 |
9.5 |
4.2 |
4.4 |
4.5 |
0.4 |
1.4 |
1.5 |
0.3 |
1.5 |
1.6 |
1.4 |
2.0 |
2.3 |
流量 (m3/s) |
178.74 |
178.74 |
178.74 |
57.02 |
57.02 |
57.02 |
9.73 |
9.73 |
9.73 |
52.54 |
52.54 |
52.54 |
18.83 |
18.83 |
18.83 |
19.60 |
19.60 |
19.60 |
10.84 |
10.84 |
10.84 |
61.40 |
61.40 |
61.40 |
33.51 |
33.51 |
33.51 |
29.21 |
29.21 |
29.21 |
40.76 |
40.76 |
40.76 |
3.65 |
3.65 |
3.65 |
採取水深 (m) |
0.5 |
30.0 |
64.0 |
0.5 |
30.0 |
61.0 |
0.5 |
25.0 |
50.0 |
0.5 |
25.0 |
50.0 |
0.5 |
25.0 |
48.0 |
0.5 |
20.0 |
42.0 |
0.5 |
25.0 |
41.0 |
0.5 |
30.0 |
63.0 |
0.5 |
25.0 |
63.0 |
0.5 |
30.0 |
60.0 |
0.5 |
25.0 |
52.0 |
0.5 |
20.0 |
35.0 |
全水深 (m) |
65.00 |
65.00 |
65.00 |
62.00 |
62.00 |
62.00 |
51.00 |
51.00 |
51.00 |
51.00 |
51.00 |
51.00 |
49.00 |
49.00 |
49.00 |
43.00 |
43.00 |
43.00 |
42.00 |
42.00 |
42.00 |
64.00 |
64.00 |
64.00 |
64.00 |
64.00 |
64.00 |
61.00 |
61.00 |
61.00 |
53.00 |
53.00 |
53.00 |
36.00 |
36.00 |
36.00 |
透明度 (m) |
0.60 |
0.60 |
0.60 |
2.00 |
2.00 |
2.00 |
2.00 |
2.00 |
2.00 |
0.60 |
0.60 |
0.60 |
0.70 |
0.70 |
0.70 |
1.60 |
1.60 |
1.60 |
0.50 |
0.50 |
0.50 |
1.60 |
1.60 |
1.60 |
2.00 |
2.00 |
2.00 |
1.50 |
1.50 |
1.50 |
2.00 |
2.00 |
2.00 |
1.20 |
1.20 |
1.20 |
外観 |
白濁 |
白濁 |
白濁 |
無色澄明 |
微白濁 |
微白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
微白濁 |
微白濁 |
微白濁 |
微茶濁 |
微茶濁 |
微茶濁 |
無色澄明 |
無色澄明 |
無色澄明 |
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 |
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 |
6.7 |
6.8 |
6.8 |
6.9 |
6.9 |
6.8 |
7.0 |
6.7 |
6.7 |
7.0 |
6.8 |
6.9 |
7.1 |
6.8 |
6.6 |
6.8 |
6.8 |
6.7 |
7.0 |
6.8 |
6.5 |
8.0 |
6.9 |
6.9 |
6.9 |
6.8 |
6.5 |
7.0 |
6.8 |
6.8 |
7.1 |
7.0 |
7.1 |
6.8 |
6.8 |
6.8 |
DO (mg/l) |
11.0 |
11.0 |
11.0 |
10.0 |
10.0 |
10.0 |
9.7 |
8.9 |
8.2 |
9.2 |
9.2 |
8.7 |
8.5 |
8.2 |
8.3 |
8.0 |
7.6 |
7.5 |
8.4 |
7.0 |
4.2 |
11.0 |
10.0 |
10.0 |
11.0 |
11.0 |
11.0 |
13.0 |
12.0 |
11.0 |
13.0 |
11.0 |
12.0 |
11.0 |
11.0 |
11.0 |
BOD (mg/l) |
< 0.5 |
0.5 |
0.7 |
< 0.5 |
< 0.5 |
< 0.5 |
1.0 |
< 0.5 |
< 0.5 |
0.7 |
< 0.5 |
< 0.5 |
0.8 |
< 0.5 |
0.5 |
0.7 |
< 0.5 |
< 0.5 |
0.7 |
0.6 |
0.6 |
1.2 |
0.9 |
0.8 |
< 0.5 |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.6 |
< 0.5 |
< 0.5 |
< 0.5 |
0.9 |
0.5 |
0.5 |
COD (mg/l) |
0.7 |
1.6 |
1.6 |
1.5 |
1.5 |
1.7 |
2.0 |
1.3 |
1.2 |
2.9 |
2.9 |
2.3 |
2.4 |
3.4 |
3.8 |
1.5 |
2.2 |
2.5 |
2.4 |
2.7 |
2.4 |
2.3 |
1.9 |
1.8 |
1.5 |
1.3 |
1.2 |
1.4 |
1.0 |
1.1 |
1.7 |
1.5 |
1.2 |
1.5 |
1.1 |
1.3 |
SS (mg/l) |
13 |
62 |
56 |
2 |
13 |
21 |
2 |
2 |
4 |
12 |
12 |
8 |
11 |
49 |
67 |
3 |
12 |
12 |
13 |
24 |
29 |
6 |
4 |
5 |
2 |
4 |
4 |
1 |
1 |
1 |
1 |
1 |
1 |
3 |
3 |
4 |
大腸菌群数 (MPN/100ml) |
7.9E+01 |
1.7E+02 |
7.9E+02 |
7.8E+00 |
3.3E+01 |
1.3E+01 |
2.3E+01 |
4.5E+00 |
2.0E+00 |
1.1E+02 |
4.9E+03 |
4.9E+02 |
7.9E+02 |
4.9E+01 |
3.3E+01 |
3.3E+01 |
2.4E+02 |
4.9E+02 |
7.9E+02 |
1.1E+02 |
4.9E+01 |
7.9E+01 |
1.3E+02 |
1.3E+01 |
4.5E+00 |
4.5E+00 |
1.1E+01 |
2.0E+00 |
0.0E+00 |
4.5E+00 |
4.5E+00 |
4.5E+00 |
7.8E+00 |
3.3E+01 |
3.3E+01 |
4.9E+01 |
全窒素 (mg/l) |
|
|
|
0.85 |
|
|
|
|
|
0.33 |
0.32 |
0.24 |
|
|
|
0.30 |
0.32 |
0.28 |
|
|
|
1.10 |
1.10 |
1.10 |
|
|
|
0.43 |
0.43 |
0.44 |
|
|
|
0.45 |
0.33 |
0.41 |
全燐 (mg/l) |
|
|
|
0.014 |
|
|
|
|
|
0.027 |
0.025 |
0.024 |
|
|
|
0.010 |
0.018 |
0.013 |
|
|
|
0.017 |
0.014 |
0.014 |
|
|
|
0.011 |
0.009 |
0.009 |
|
|
|
0.011 |
0.009 |
0.010 |
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 |
|
|
|
|
|
|
|
|
|
|
|
< 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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
セレン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
< 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 |
クロロフィル-a (ug/l) |
|
|
|
< 1 |
< 1 |
< 1 |
|
|
|
9 |
< 1 |
< 1 |
|
|
|
< 1 |
< 1 |
< 1 |
|
|
|
< 1 |
< 1 |
< 1 |
|
|
|
< 1 |
< 1 |
< 1 |
|
|
|
< 1 |
< 1 |
< 1 |
透視度 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
29.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
12.0 |
9.0 |
> 30.0 |
> 30.0 |
> 30.0 |
30.0 |
19.0 |
22.0 |
> 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 |
クロルニトロフェン (mg/l) |
|
|
|
< 0.0001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.15 |
0.14 |
0.14 |
|
|
|
0.15 |
0.15 |
0.16 |
|
|
|
0.10 |
0.09 |
0.08 |
|
|
|
0.16 |
0.16 |
0.15 |
|
|
|
0.16 |
0.17 |
0.16 |
|
|
|
0.29 |
0.29 |
0.24 |