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 |
2002.04.24 |
2002.04.24 |
2002.04.24 |
2002.05.22 |
2002.05.22 |
2002.05.22 |
2002.06.12 |
2002.06.12 |
2002.06.12 |
2002.07.23 |
2002.07.23 |
2002.07.23 |
2002.08.30 |
2002.08.30 |
2002.08.30 |
2002.09.18 |
2002.09.18 |
2002.09.18 |
2002.10.09 |
2002.10.09 |
2002.10.09 |
2002.11.13 |
2002.11.13 |
2002.11.13 |
2002.12.11 |
2002.12.11 |
2002.12.11 |
2003.01.08 |
2003.02.05 |
2003.03.05 |
採取時刻 |
1015 |
1110 |
1130 |
1043 |
1145 |
1205 |
1000 |
1036 |
1055 |
1100 |
1150 |
1210 |
1000 |
1050 |
1110 |
1040 |
1125 |
1150 |
1000 |
1040 |
1100 |
1040 |
1126 |
1145 |
1000 |
1040 |
1105 |
1240 |
1130 |
1310 |
天候 |
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 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
雪 |
雪 |
雪 |
雪 |
雪 |
雪 |
晴れ |
晴れ |
雪 |
気温 (℃) |
13.4 |
15.2 |
15.6 |
14.0 |
14.7 |
14.7 |
14.7 |
14.8 |
14.8 |
27.5 |
27.6 |
27.7 |
27.0 |
27.5 |
27.7 |
18.6 |
19.0 |
19.4 |
16.1 |
16.1 |
16.1 |
0.7 |
0.7 |
0.8 |
-4.3 |
-4.1 |
-4.1 |
-0.2 |
-2.8 |
-1.2 |
水温 (℃) |
7.5 |
6.8 |
6.4 |
11.8 |
8.9 |
8.7 |
15.1 |
9.2 |
8.0 |
24.2 |
13.7 |
13.2 |
25.0 |
17.2 |
16.7 |
19.8 |
17.4 |
16.7 |
16.5 |
14.7 |
14.1 |
5.0 |
4.8 |
4.7 |
2.0 |
4.2 |
4.2 |
1.0 |
1.2 |
1.0 |
流量 (m3/s) |
69.73 |
69.73 |
69.73 |
22.97 |
22.97 |
22.97 |
18.33 |
18.33 |
18.33 |
43.41 |
43.41 |
43.41 |
18.91 |
18.91 |
18.91 |
14.05 |
14.05 |
14.05 |
32.19 |
32.19 |
32.19 |
152.57 |
152.57 |
152.57 |
27.53 |
27.53 |
27.53 |
23.77 |
1.66 |
9.73 |
採取水深 (m) |
0.5 |
30.0 |
61.0 |
0.5 |
30.0 |
60.0 |
0.5 |
30.0 |
57.0 |
0.5 |
25.0 |
47.0 |
0.5 |
25.0 |
45.0 |
0.5 |
20.0 |
44.0 |
0.5 |
25.0 |
50.0 |
0.5 |
25.0 |
50.0 |
0.5 |
25.0 |
56.0 |
0.5 |
0.5 |
0.5 |
全水深 (m) |
62.0 |
62.0 |
62.0 |
61.0 |
61.0 |
61.0 |
58.0 |
58.0 |
58.0 |
48.0 |
48.0 |
48.0 |
46.0 |
46.0 |
46.0 |
44.0 |
44.0 |
44.0 |
51.0 |
51.0 |
51.0 |
51.0 |
51.0 |
51.0 |
57.0 |
57.0 |
57.0 |
|
|
|
透明度 (m) |
0.70 |
|
|
2.20 |
|
|
3.00 |
|
|
1.00 |
|
|
1.40 |
|
|
1.50 |
|
|
0.50 |
|
|
1.80 |
|
|
1.50 |
|
|
|
|
|
外観 |
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 |
白濁 |
濃白濁 |
濃白濁 |
白濁 |
濃白濁 |
濃白濁 |
白濁 |
白濁 |
白濁 |
茶濁 |
濃白濁 |
濃白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
白濁 |
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 |
6.8 |
6.7 |
6.8 |
7.0 |
6.9 |
6.8 |
7.1 |
6.8 |
6.7 |
7.1 |
6.9 |
6.8 |
7.0 |
6.8 |
6.8 |
6.9 |
6.8 |
6.6 |
6.7 |
6.9 |
6.9 |
6.7 |
6.7 |
6.8 |
6.9 |
6.9 |
6.9 |
6.8 |
6.9 |
6.6 |
DO (mg/l) |
11.6 |
11.5 |
11.5 |
10.8 |
10.5 |
10.7 |
9.5 |
9.7 |
9.1 |
9.1 |
9.8 |
8.6 |
8.3 |
9.4 |
8.4 |
8.2 |
5.7 |
4.8 |
9.1 |
9.0 |
8.8 |
12.0 |
12.0 |
11.9 |
12.4 |
12.9 |
12.4 |
11.9 |
13.6 |
11.1 |
BOD (mg/l) |
< 0.5 |
0.9 |
0.5 |
1.0 |
0.5 |
< 0.5 |
1.2 |
0.5 |
0.5 |
0.6 |
< 0.5 |
< 0.5 |
0.7 |
0.6 |
0.5 |
0.9 |
1.0 |
0.8 |
0.8 |
0.6 |
0.6 |
0.7 |
0.6 |
0.7 |
0.6 |
0.5 |
0.5 |
0.8 |
0.9 |
1.1 |
COD (mg/l) |
1.4 |
2.3 |
3.7 |
2.0 |
1.3 |
1.3 |
2.0 |
1.5 |
2.6 |
1.7 |
2.4 |
2.7 |
1.6 |
2.4 |
2.2 |
2.1 |
2.7 |
2.2 |
4.0 |
2.6 |
2.5 |
1.9 |
1.7 |
1.8 |
1.3 |
1.4 |
1.2 |
2.2 |
1.8 |
1.8 |
SS (mg/l) |
11 |
12 |
57 |
2 |
2 |
3 |
1 |
1 |
35 |
4 |
25 |
40 |
5 |
22 |
16 |
9 |
10 |
13 |
22 |
15 |
16 |
3 |
3 |
3 |
3 |
3 |
3 |
1 |
1 |
3 |
大腸菌群数 (MPN/100ml) |
1.7E+02 |
7.9E+01 |
1.7E+02 |
2.3E+01 |
4.5E+00 |
2.7E+01 |
2.0E+00 |
< 1.8E+00 |
4.5E+00 |
4.9E+01 |
1.7E+03 |
7.9E+02 |
7.9E+01 |
3.3E+02 |
7.9E+02 |
2.4E+02 |
1.3E+02 |
3.3E+01 |
7.9E+02 |
1.3E+03 |
1.3E+03 |
4.9E+02 |
1.3E+03 |
2.4E+03 |
3.3E+02 |
2.4E+02 |
2.4E+02 |
3.3E+01 |
< 1.8E+00 |
1.7E+01 |
全窒素 (mg/l) |
|
|
|
0.31 |
0.29 |
0.27 |
|
|
|
0.34 |
0.46 |
0.37 |
|
|
|
0.28 |
0.38 |
0.39 |
|
|
|
0.32 |
0.31 |
0.32 |
|
|
|
0.31 |
|
0.36 |
全燐 (mg/l) |
|
|
|
0.014 |
0.007 |
0.007 |
|
|
|
0.015 |
0.028 |
0.033 |
|
|
|
0.017 |
0.025 |
0.017 |
|
|
|
0.026 |
0.011 |
0.011 |
|
|
|
0.009 |
|
0.014 |
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) |
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
< 0.002 |
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) |
|
|
|
7 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
4 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
|
< 2 |
透視度 |
30.0 |
25.0 |
19.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
18.0 |
17.0 |
> 30.0 |
26.0 |
25.0 |
> 30.0 |
> 30.0 |
> 30.0 |
12.0 |
24.0 |
25.0 |
> 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) |
|
|
|
0.20 |
0.20 |
0.22 |
|
|
|
0.15 |
0.14 |
0.14 |
|
|
|
0.11 |
0.17 |
0.15 |
|
|
|
0.17 |
0.19 |
0.24 |
|
|
|
0.18 |
|
0.32 |