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 |
1999.04.21 |
1999.04.21 |
1999.04.21 |
1999.05.19 |
1999.05.19 |
1999.05.19 |
1999.06.09 |
1999.06.09 |
1999.06.09 |
1999.07.14 |
1999.07.14 |
1999.07.14 |
1999.08.18 |
1999.08.18 |
1999.08.18 |
1999.09.08 |
1999.09.08 |
1999.09.08 |
1999.10.13 |
1999.10.13 |
1999.10.13 |
1999.11.17 |
1999.11.17 |
1999.11.17 |
1999.12.08 |
1999.12.08 |
1999.12.08 |
2000.01.12 |
2000.01.12 |
2000.01.12 |
2000.02.09 |
2000.02.09 |
2000.02.09 |
2000.03.08 |
2000.03.08 |
2000.03.08 |
採取時刻 |
1010 |
1105 |
1130 |
1100 |
1155 |
1215 |
1003 |
1100 |
1120 |
0950 |
1040 |
1100 |
0940 |
1025 |
1050 |
1140 |
1230 |
1250 |
0900 |
0945 |
1005 |
1210 |
1300 |
1320 |
0900 |
0950 |
1010 |
0930 |
1020 |
1040 |
1040 |
1130 |
1150 |
0950 |
1040 |
1110 |
天候 |
晴れ |
晴れ |
晴れ |
雨 |
雨 |
雨 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
雨 |
雨 |
雨 |
雨 |
雨 |
雨 |
雪 |
雪 |
雪 |
雪 |
雪 |
雪 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
雪 |
雪 |
雪 |
気温 (℃) |
11.8 |
13.0 |
13.2 |
14.6 |
14.6 |
14.6 |
17.8 |
17.9 |
18.2 |
22.6 |
22.7 |
22.7 |
29.9 |
30.3 |
30.9 |
23.5 |
23.5 |
23.3 |
17.0 |
17.1 |
17.2 |
0.4 |
0.4 |
0.4 |
0.2 |
0.8 |
1.2 |
-2.7 |
-1.6 |
-1.0 |
-0.1 |
-0.1 |
-0.1 |
-2.4 |
-2.4 |
-2.4 |
水温 (℃) |
6.8 |
6.1 |
5.5 |
11.0 |
8.6 |
8.0 |
16.2 |
10.0 |
8.2 |
20.4 |
12.8 |
9.5 |
27.0 |
12.9 |
9.6 |
21.5 |
14.2 |
13.2 |
16.2 |
13.9 |
13.5 |
6.3 |
6.2 |
6.1 |
1.9 |
2.8 |
3.5 |
1.6 |
2.3 |
2.4 |
1.8 |
2.3 |
2.4 |
1.9 |
2.2 |
2.4 |
流量 (m3/s) |
170.67 |
170.67 |
170.67 |
40.12 |
40.12 |
40.12 |
15.54 |
15.54 |
15.54 |
49.05 |
49.05 |
49.05 |
5.87 |
12.09 |
12.09 |
18.49 |
18.48 |
18.48 |
25.21 |
25.21 |
30.13 |
34.75 |
37.38 |
37.38 |
40.41 |
40.40 |
40.40 |
36.45 |
36.39 |
36.39 |
15.03 |
15.03 |
15.03 |
14.75 |
17.89 |
17.89 |
採取水深 (m) |
0.5 |
30.0 |
63.0 |
0.5 |
30.0 |
60.0 |
0.5 |
30.0 |
60.0 |
0.5 |
25.0 |
50.0 |
0.5 |
20.0 |
45.0 |
0.5 |
25.0 |
44.0 |
0.5 |
20.0 |
40.0 |
0.5 |
25.0 |
46.0 |
0.5 |
25.0 |
44.0 |
0.5 |
25.0 |
45.0 |
0.5 |
25.0 |
46.0 |
0.5 |
20.0 |
43.0 |
全水深 (m) |
64.0 |
64.0 |
64.0 |
61.0 |
61.0 |
61.0 |
61.0 |
61.0 |
61.0 |
51.0 |
51.0 |
51.0 |
46.0 |
46.0 |
46.0 |
45.0 |
45.0 |
45.0 |
41.0 |
41.0 |
41.0 |
47.0 |
47.0 |
47.0 |
45.0 |
45.0 |
45.0 |
46.0 |
46.0 |
46.0 |
47.0 |
47.0 |
47.0 |
44.0 |
44.0 |
44.0 |
透明度 (m) |
1.50 |
|
|
1.00 |
|
|
2.50 |
|
|
2.00 |
|
|
1.80 |
|
|
1.00 |
|
|
1.50 |
|
|
1.20 |
|
|
1.00 |
|
|
0.80 |
|
|
1.20 |
|
|
1.50 |
|
|
外観 |
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 |
微白濁 |
微白濁 |
微白濁 |
無色澄明 |
無色澄明 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
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 |
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 |
6.8 |
6.8 |
6.8 |
7.1 |
6.9 |
7.0 |
6.9 |
6.8 |
6.5 |
7.2 |
6.7 |
6.6 |
7.4 |
6.6 |
6.6 |
6.9 |
6.6 |
6.4 |
7.0 |
6.9 |
6.8 |
6.9 |
6.9 |
7.0 |
6.8 |
6.8 |
6.8 |
6.7 |
6.8 |
6.8 |
6.9 |
6.8 |
6.8 |
6.6 |
6.7 |
6.8 |
DO (mg/l) |
12.3 |
12.3 |
12.2 |
10.9 |
10.9 |
11.0 |
10.1 |
10.0 |
10.1 |
9.8 |
8.4 |
7.7 |
8.4 |
6.5 |
5.5 |
8.4 |
7.3 |
5.3 |
9.1 |
9.0 |
8.8 |
10.6 |
10.7 |
9.9 |
12.1 |
12.1 |
12.1 |
12.7 |
12.5 |
10.4 |
12.9 |
12.0 |
12.3 |
13.5 |
12.8 |
13.5 |
BOD (mg/l) |
0.8 |
0.7 |
0.7 |
0.9 |
0.5 |
0.6 |
0.9 |
< 0.5 |
< 0.5 |
1.1 |
0.5 |
0.5 |
1.2 |
< 0.5 |
< 0.5 |
1.2 |
0.7 |
0.6 |
0.8 |
0.5 |
0.7 |
< 0.5 |
0.5 |
< 0.5 |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.6 |
0.6 |
0.6 |
< 0.5 |
< 0.5 |
0.8 |
< 0.5 |
< 0.5 |
COD (mg/l) |
0.8 |
0.9 |
1.0 |
0.7 |
0.6 |
0.6 |
2.3 |
1.1 |
1.3 |
1.7 |
1.6 |
1.3 |
2.5 |
1.3 |
1.2 |
2.4 |
3.3 |
2.5 |
2.2 |
2.0 |
2.0 |
1.3 |
1.3 |
1.4 |
1.9 |
1.9 |
1.9 |
1.9 |
1.8 |
1.6 |
0.8 |
1.0 |
0.9 |
1.8 |
1.0 |
1.0 |
SS (mg/l) |
6 |
6 |
10 |
3 |
5 |
6 |
2 |
1 |
3 |
3 |
3 |
3 |
4 |
2 |
2 |
9 |
10 |
9 |
6 |
7 |
10 |
5 |
7 |
7 |
21 |
19 |
23 |
14 |
16 |
16 |
1 |
3 |
3 |
1 |
3 |
3 |
大腸菌群数 (MPN/100ml) |
1.7E+01 |
1.3E+01 |
3.3E+01 |
2.3E+01 |
2.3E+01 |
3.3E+01 |
4.5E+00 |
7.8E+00 |
2.0E+00 |
3.3E+01 |
2.3E+01 |
2.0E+00 |
9.2E+04 |
1.3E+03 |
1.1E+03 |
4.9E+02 |
2.4E+03 |
4.9E+03 |
3.3E+02 |
7.9E+02 |
7.9E+02 |
7.9E+01 |
1.1E+02 |
2.4E+02 |
3.3E+02 |
4.9E+02 |
7.9E+02 |
7.9E+02 |
1.1E+02 |
1.3E+02 |
2.0E+00 |
4.9E+01 |
3.3E+01 |
1.3E+01 |
3.3E+02 |
4.9E+01 |
全窒素 (mg/l) |
|
|
|
0.35 |
0.31 |
0.34 |
|
|
|
0.31 |
0.31 |
0.31 |
|
|
|
0.43 |
0.43 |
0.39 |
|
|
|
0.25 |
0.27 |
0.27 |
|
|
|
0.43 |
0.45 |
0.44 |
|
|
|
0.63 |
0.35 |
0.34 |
全燐 (mg/l) |
|
|
|
0.012 |
0.010 |
0.012 |
|
|
|
0.010 |
0.009 |
0.008 |
|
|
|
0.023 |
0.019 |
0.019 |
|
|
|
0.011 |
0.012 |
0.011 |
|
|
|
0.026 |
0.026 |
0.027 |
|
|
|
0.006 |
0.010 |
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) |
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
|
砒素 (mg/l) |
|
|
|
0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
0.003 |
|
|
|
|
|
< 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) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ふっ素 (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 |
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) |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
8 |
< 2 |
< 2 |
|
|
|
2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 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 |
> 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 |
< 0.02 |
|
|
|
< 0.02 |
< 0.02 |
< 0.02 |
|
|
|
< 0.02 |
< 0.02 |
< 0.02 |
|
|
|
< 0.02 |
< 0.02 |
< 0.02 |
|
|
|
< 0.02 |
< 0.02 |
< 0.02 |
|
|
|
< 0.02 |
0.02 |
0.02 |
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.18 |
0.17 |
0.17 |
|
|
|
0.10 |
0.20 |
0.19 |
|
|
|
0.21 |
0.21 |
0.20 |
|
|
|
0.14 |
0.14 |
0.13 |
|
|
|
0.24 |
0.21 |
0.22 |
|
|
|
0.33 |
0.21 |
0.22 |