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 |
2009.04.15 |
2009.04.15 |
2009.04.15 |
2009.05.20 |
2009.05.20 |
2009.05.20 |
2009.06.17 |
2009.06.17 |
2009.06.17 |
2009.07.08 |
2009.07.08 |
2009.07.08 |
2009.08.12 |
2009.08.12 |
2009.08.12 |
2009.09.09 |
2009.09.09 |
2009.09.09 |
2009.10.21 |
2009.10.21 |
2009.10.21 |
2009.11.11 |
2009.11.11 |
2009.11.11 |
2009.12.09 |
2009.12.09 |
2009.12.09 |
2010.01.06 |
2010.01.06 |
2010.01.06 |
2010.02.03 |
2010.03.03 |
採取時刻 |
1150 |
1240 |
1305 |
1150 |
1228 |
1244 |
1050 |
1135 |
1200 |
1020 |
1105 |
1125 |
0935 |
1010 |
1030 |
1045 |
1122 |
1140 |
0940 |
1020 |
1040 |
1115 |
1148 |
1204 |
1030 |
1115 |
1135 |
1010 |
1045 |
1110 |
1100 |
1130 |
天候 |
雨 |
雨 |
雨 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
雨 |
雨 |
雨 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
雨 |
曇り |
曇り |
雨 |
雨 |
雨 |
曇り |
曇り |
曇り |
雪 |
雪 |
雪 |
雪 |
晴れ |
気温 (℃) |
10 |
10 |
10 |
23 |
23.2 |
23.3 |
18.5 |
18.8 |
19 |
22 |
22.2 |
22.4 |
22.8 |
23.9 |
25 |
19.8 |
20.2 |
20.4 |
12 |
12.1 |
12.1 |
9.9 |
9.9 |
9.9 |
3.5 |
3.7 |
3.8 |
-1 |
-0.6 |
-0.4 |
-8 |
3 |
水温 (℃) |
8.2 |
7 |
6.2 |
13.5 |
10.7 |
8.4 |
16.8 |
9.8 |
8.8 |
21.5 |
9 |
8 |
22.5 |
15.8 |
10.1 |
20.4 |
17.5 |
10.2 |
13 |
12.7 |
12.3 |
11.2 |
10 |
9.5 |
6.6 |
6.7 |
6.6 |
1.5 |
1.9 |
2 |
1.2 |
2.8 |
流量 (m3/s) |
190.1 |
190.1 |
190.1 |
40.3 |
40.3 |
40.3 |
49.4 |
49.4 |
49.4 |
10.49 |
10.49 |
10.49 |
17.3 |
17.3 |
17.3 |
5.72 |
5.72 |
5.72 |
39.62 |
39.62 |
39.62 |
50.82 |
50.82 |
50.82 |
30.66 |
30.66 |
30.66 |
15.06 |
15.06 |
15.06 |
15.71 |
29.39 |
採取水深 (m) |
0.5 |
32 |
63 |
0.5 |
30 |
61 |
0.5 |
26.5 |
52 |
0.5 |
25 |
49 |
0.5 |
23.5 |
46 |
0.5 |
25 |
44 |
0.5 |
22.5 |
44 |
0.5 |
27 |
53 |
0.5 |
29 |
57 |
0.5 |
27 |
53 |
0.5 |
0.5 |
全水深 (m) |
64 |
64 |
64 |
62 |
62 |
62 |
53 |
53 |
53 |
50 |
50 |
50 |
47 |
47 |
47 |
45 |
45 |
45 |
45 |
45 |
45 |
54 |
54 |
54 |
58 |
58 |
58 |
54 |
54 |
54 |
|
|
透明度 (m) |
2.8 |
|
|
2.9 |
|
|
2.8 |
|
|
3 |
|
|
2.3 |
|
|
3 |
|
|
1.8 |
|
|
3 |
|
|
2.5 |
|
|
3 |
|
|
2.5 |
2.5 |
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 |
微白濁 |
無色澄明 |
微白濁 |
濃白濁 |
無色澄明 |
無色澄明 |
微白濁 |
無色澄明 |
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 |
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 |
pH |
6.8 |
6.8 |
6.8 |
7.1 |
6.9 |
6.8 |
7.2 |
6.9 |
6.7 |
7.4 |
6.7 |
6.6 |
7.2 |
6.8 |
6.6 |
7.3 |
6.9 |
6.7 |
7.1 |
7.1 |
6.9 |
7.2 |
7.2 |
7.1 |
7.1 |
7.1 |
7.0 |
7.2 |
7.0 |
7.1 |
6.9 |
6.8 |
DO (mg/l) |
11 |
12 |
11 |
10 |
11 |
10 |
9.5 |
9.7 |
8.2 |
8.9 |
8.9 |
6.0 |
9.0 |
9.1 |
1.5 |
9.0 |
7.4 |
1.0 |
9.9 |
9.8 |
8.9 |
11 |
10 |
10 |
11 |
11 |
11 |
13 |
12 |
13 |
13 |
13 |
BOD (mg/l) |
0.7 |
0.7 |
0.6 |
0.6 |
0.5 |
< 0.5 |
0.9 |
0.5 |
0.5 |
0.7 |
0.5 |
0.7 |
0.6 |
0.7 |
0.7 |
1.2 |
1.0 |
0.9 |
1.0 |
1.0 |
1.0 |
0.7 |
0.7 |
0.9 |
0.6 |
0.7 |
0.9 |
0.5 |
0.5 |
0.6 |
0.5 |
0.7 |
COD (mg/l) |
1.8 |
1.7 |
1.4 |
1.8 |
1.3 |
1.1 |
2.5 |
1.2 |
1.5 |
1.9 |
1.3 |
1.8 |
1.8 |
2.1 |
2.5 |
3.1 |
2.9 |
2.3 |
2.7 |
2.7 |
2.3 |
1.9 |
1.8 |
2.0 |
1.7 |
1.9 |
2.0 |
1.2 |
1.4 |
1.5 |
1.4 |
1.8 |
SS (mg/l) |
2 |
2 |
4 |
1 |
2 |
4 |
2 |
2 |
9 |
1 |
1 |
8 |
2 |
4 |
26 |
2 |
4 |
19 |
3 |
4 |
8 |
1 |
2 |
2 |
1 |
2 |
2 |
1 |
1 |
1 |
1 |
3 |
大腸菌群数 (MPN/100ml) |
4.0E+00 |
2.0E+00 |
< 1.8E+00 |
7.8E+00 |
4.5E+00 |
2.0E+00 |
4.9E+02 |
2.3E+01 |
1.7E+01 |
2.3E+01 |
7.9E+01 |
4.5E+00 |
3.3E+02 |
3.3E+02 |
4.9E+02 |
1.3E+02 |
4.9E+02 |
1.7E+02 |
2.3E+01 |
3.3E+01 |
3.3E+01 |
1.3E+02 |
1.3E+02 |
3.3E+01 |
3.3E+01 |
4.9E+01 |
4.9E+01 |
1.3E+01 |
2.3E+01 |
2.3E+01 |
7.8E+00 |
1.3E+01 |
全窒素 (mg/l) |
0.31 |
0.25 |
0.29 |
0.29 |
0.21 |
0.23 |
0.34 |
0.23 |
0.35 |
0.26 |
0.26 |
0.37 |
0.23 |
0.32 |
0.48 |
0.26 |
0.24 |
0.38 |
0.41 |
0.37 |
0.32 |
0.25 |
0.23 |
0.29 |
0.29 |
0.22 |
0.22 |
0.24 |
0.24 |
0.24 |
0.32 |
0.39 |
全燐 (mg/l) |
0.008 |
0.006 |
0.009 |
0.009 |
0.008 |
0.009 |
0.008 |
0.004 |
0.011 |
0.007 |
0.004 |
0.012 |
0.009 |
0.012 |
0.045 |
0.010 |
0.010 |
0.017 |
0.013 |
0.013 |
0.015 |
0.007 |
0.006 |
0.008 |
0.007 |
0.007 |
0.007 |
0.003 |
0.004 |
0.005 |
0.009 |
0.010 |
全亜鉛 (mg/l) |
0.013 |
|
|
0.010 |
|
|
0.013 |
|
|
0.008 |
|
|
0.009 |
|
|
0.006 |
|
|
0.006 |
|
|
0.008 |
|
|
0.013 |
0.016 |
0.016 |
0.016 |
0.016 |
0.011 |
0.013 |
0.017 |
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 |
|
|
|
|
|
|
|
|
|
|
亜硝酸性窒素 (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 |
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 |
クロロフィル-a (ug/l) |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
5 |
< 2 |
< 2 |
|
|
|
4 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
< 2 |
透視度 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
55 |
> 100 |
> 100 |
60 |
> 100 |
55 |
24 |
> 100 |
> 100 |
55 |
> 100 |
88 |
60 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
ほう素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.11 |
0.14 |
0.15 |
|
|
|
0.08 |
0.16 |
0.15 |
|
|
|
0.07 |
0.12 |
0.02 |
|
|
|
0.11 |
0.09 |
0.08 |
|
|
|
0.09 |
0.10 |
0.12 |
|
0.24 |
ふん便性大腸菌群数 (個/100mL) |
0.0E+00 |
0.0E+00 |
0.0E+00 |
0.0E+00 |
0.0E+00 |
0.0E+00 |
5.0E+00 |
1.0E+00 |
0.0E+00 |
2.0E+00 |
0.0E+00 |
0.0E+00 |
7.0E+00 |
4.0E+00 |
3.1E+01 |
1.0E+00 |
2.1E+01 |
6.2E+01 |
8.0E+00 |
1.0E+01 |
1.3E+01 |
4.2E+01 |
7.0E+00 |
1.9E+01 |
0.0E+00 |
1.0E+00 |
1.0E+00 |
0.0E+00 |
0.0E+00 |
0.0E+00 |
2.0E+00 |
1.1E+01 |