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 |
2000.04.26 |
2000.04.26 |
2000.04.26 |
2000.05.17 |
2000.05.17 |
2000.05.17 |
2000.06.14 |
2000.06.14 |
2000.06.14 |
2000.07.12 |
2000.07.12 |
2000.07.12 |
2000.08.09 |
2000.08.09 |
2000.08.09 |
2000.09.20 |
2000.09.20 |
2000.09.20 |
2000.10.11 |
2000.10.11 |
2000.10.11 |
2000.11.15 |
2000.11.15 |
2000.11.15 |
2000.12.13 |
2000.12.13 |
2000.12.13 |
2001.01.17 |
2001.01.17 |
2001.01.17 |
2001.02.14 |
2001.02.14 |
2001.02.14 |
2001.03.07 |
2001.03.07 |
2001.03.07 |
採取時刻 |
1340 |
1435 |
1455 |
0940 |
1030 |
1050 |
1015 |
1105 |
1125 |
1130 |
1220 |
1240 |
0940 |
1025 |
1050 |
1020 |
1100 |
1125 |
1000 |
1040 |
1105 |
1007 |
1038 |
1106 |
1200 |
1240 |
1310 |
1005 |
1052 |
1140 |
1110 |
1250 |
1350 |
1000 |
1120 |
1240 |
天候 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
雨 |
雨 |
雨 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
雪 |
雪 |
雪 |
曇り |
曇り |
曇り |
雪 |
雪 |
雪 |
気温 (℃) |
17.0 |
16.8 |
16.2 |
11.3 |
11.9 |
12.3 |
17.3 |
18.0 |
18.2 |
23.0 |
24.1 |
25.0 |
26.3 |
27.1 |
27.4 |
22.2 |
22.2 |
22.2 |
16.5 |
17.6 |
18.4 |
6.9 |
11.1 |
13.6 |
-1.0 |
-0.9 |
-0.8 |
-7.0 |
-7.0 |
-7.0 |
-5.3 |
-5.4 |
-5.4 |
-1.3 |
-0.8 |
-0.6 |
水温 (℃) |
6.5 |
5.8 |
5.4 |
10.5 |
8.3 |
8.0 |
15.0 |
9.0 |
8.5 |
21.8 |
14.2 |
13.2 |
25.0 |
17.0 |
10.0 |
20.8 |
15.1 |
9.0 |
16.0 |
14.6 |
9.0 |
9.0 |
8.5 |
8.0 |
1.4 |
2.1 |
2.4 |
0.5 |
1.0 |
1.0 |
0.5 |
1.0 |
1.0 |
0.5 |
1.0 |
1.0 |
流量 (m3/s) |
170.99 |
170.99 |
170.99 |
58.20 |
58.20 |
58.20 |
19.00 |
19.00 |
19.00 |
29.15 |
29.15 |
29.15 |
24.32 |
24.32 |
24.32 |
13.81 |
13.81 |
13.81 |
13.72 |
13.72 |
13.72 |
14.31 |
14.31 |
14.31 |
34.79 |
34.79 |
34.79 |
15.66 |
15.66 |
15.66 |
11.54 |
11.54 |
11.54 |
15.55 |
15.55 |
15.55 |
採取水深 (m) |
0.5 |
30.0 |
61.0 |
0.5 |
30.0 |
61.0 |
0.5 |
25.0 |
51.0 |
0.5 |
25.0 |
47.0 |
0.5 |
20.0 |
47.0 |
0.5 |
20.0 |
45.0 |
0.5 |
20.0 |
43.0 |
0.5 |
20.0 |
45.0 |
0.5 |
20.0 |
45.0 |
0.5 |
25.0 |
47.0 |
0.5 |
25.0 |
47.0 |
0.5 |
25.0 |
47.0 |
全水深 (m) |
62.0 |
62.0 |
62.0 |
62.0 |
62.0 |
62.0 |
52.0 |
52.0 |
52.0 |
48.0 |
48.0 |
48.0 |
48.0 |
48.0 |
48.0 |
46.0 |
46.0 |
46.0 |
44.0 |
44.0 |
44.0 |
46.0 |
46.0 |
46.0 |
46.0 |
46.0 |
46.0 |
48.0 |
48.0 |
48.0 |
48.0 |
48.0 |
48.0 |
48.0 |
48.0 |
48.0 |
透明度 (m) |
0.30 |
|
|
1.20 |
|
|
1.50 |
|
|
0.80 |
|
|
|
|
|
1.70 |
|
|
2.10 |
|
|
2.00 |
|
|
1.00 |
|
|
0.80 |
|
|
1.00 |
|
|
1.00 |
|
|
外観 |
濃白濁 |
濃白濁 |
濃白濁 |
白濁 |
白濁 |
微白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
茶色 |
茶色 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
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 |
白濁 |
白濁 |
白濁 |
白濁 |
白濁 |
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 |
6.7 |
6.6 |
6.6 |
7.1 |
7.0 |
7.0 |
6.9 |
6.6 |
6.5 |
7.1 |
6.8 |
6.7 |
7.2 |
6.6 |
6.6 |
7.1 |
6.5 |
6.4 |
7.1 |
6.9 |
6.6 |
7.0 |
7.0 |
7.0 |
6.8 |
6.7 |
6.8 |
6.9 |
6.9 |
7.0 |
7.0 |
6.9 |
7.0 |
6.9 |
6.8 |
6.8 |
DO (mg/l) |
11.8 |
11.0 |
11.6 |
10.8 |
11.3 |
11.2 |
9.5 |
10.4 |
8.5 |
8.7 |
7.9 |
7.9 |
8.2 |
6.7 |
5.1 |
9.3 |
4.6 |
1.1 |
9.0 |
6.7 |
< 0.5 |
10.4 |
10.4 |
10.5 |
12.7 |
12.4 |
12.5 |
13.4 |
13.6 |
10.1 |
13.5 |
13.0 |
9.7 |
12.3 |
12.2 |
13.2 |
BOD (mg/l) |
0.6 |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.7 |
0.6 |
< 0.5 |
0.5 |
0.5 |
< 0.5 |
0.8 |
0.5 |
0.5 |
0.7 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.5 |
0.6 |
< 0.5 |
0.5 |
< 0.5 |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
COD (mg/l) |
2.2 |
2.1 |
2.1 |
1.4 |
1.5 |
1.3 |
1.9 |
1.0 |
1.0 |
3.0 |
2.4 |
1.1 |
1.8 |
2.0 |
1.6 |
2.4 |
2.2 |
2.0 |
1.9 |
1.9 |
2.0 |
2.0 |
1.8 |
1.8 |
2.1 |
2.0 |
1.9 |
1.2 |
1.1 |
1.4 |
1.2 |
0.9 |
1.1 |
1.2 |
1.1 |
1.0 |
SS (mg/l) |
34 |
39 |
33 |
3 |
5 |
10 |
3 |
2 |
6 |
7 |
17 |
8 |
1 |
3 |
9 |
2 |
3 |
16 |
2 |
4 |
13 |
3 |
4 |
4 |
5 |
5 |
6 |
1 |
2 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
大腸菌群数 (MPN/100ml) |
7.9E+02 |
4.9E+02 |
3.3E+02 |
4.9E+01 |
3.3E+01 |
1.1E+02 |
7.9E+01 |
7.8E+00 |
2.0E+00 |
3.3E+02 |
1.1E+03 |
4.9E+01 |
4.9E+02 |
1.1E+02 |
1.3E+02 |
2.4E+02 |
3.3E+02 |
4.9E+02 |
7.9E+01 |
1.7E+02 |
1.1E+02 |
1.3E+02 |
1.3E+02 |
1.7E+02 |
1.1E+03 |
4.9E+03 |
1.3E+03 |
2.4E+03 |
1.7E+03 |
4.9E+03 |
1.7E+03 |
4.9E+02 |
4.9E+02 |
1.7E+03 |
1.1E+03 |
4.9E+02 |
全窒素 (mg/l) |
|
|
|
0.33 |
0.35 |
0.28 |
|
|
|
0.41 |
0.36 |
0.32 |
|
|
|
0.31 |
0.31 |
0.52 |
|
|
|
0.29 |
0.26 |
0.25 |
|
|
|
0.36 |
0.34 |
0.34 |
|
|
|
0.41 |
0.40 |
0.40 |
全燐 (mg/l) |
|
|
|
0.010 |
0.014 |
0.014 |
|
|
|
0.018 |
0.017 |
0.010 |
|
|
|
0.009 |
0.013 |
0.016 |
|
|
|
0.013 |
0.014 |
0.015 |
|
|
|
0.008 |
0.008 |
0.008 |
|
|
|
0.005 |
0.005 |
0.004 |
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 |
< 0.1 |
|
|
|
< 0.1 |
< 0.1 |
< 0.1 |
クロロフィル-a (ug/l) |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
3 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
透視度 |
14.0 |
14.0 |
12.0 |
> 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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.21 |
0.21 |
0.18 |
|
|
|
0.20 |
0.26 |
0.19 |
|
|
|
0.30 |
0.30 |
0.25 |
|
|
|
0.22 |
0.22 |
0.20 |
|
|
|
0.25 |
0.25 |
0.23 |
|
|
|
0.28 |
0.28 |
0.29 |