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 |
2007.04.25 |
2007.04.25 |
2007.04.25 |
2007.05.22 |
2007.05.22 |
2007.05.22 |
2007.06.13 |
2007.06.13 |
2007.06.13 |
2007.07.11 |
2007.07.11 |
2007.07.11 |
2007.10.04 |
2007.10.04 |
2007.10.04 |
2007.10.16 |
2007.10.16 |
2007.10.16 |
2007.11.26 |
2007.11.26 |
2007.11.26 |
2007.12.12 |
2007.12.12 |
2007.12.12 |
2008.01.09 |
2008.01.09 |
2008.01.09 |
2008.02.06 |
2008.03.05 |
採取時刻 |
0955 |
1040 |
1056 |
1010 |
1110 |
1130 |
0930 |
1004 |
1024 |
0955 |
1030 |
1050 |
1020 |
1050 |
1115 |
1243 |
1316 |
1340 |
1130 |
1215 |
1235 |
1030 |
1157 |
1230 |
0950 |
1035 |
1055 |
1030 |
1010 |
天候 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
雨 |
雨 |
雨 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
雪 |
雪 |
雪 |
雪 |
晴れ |
気温 (℃) |
8.3 |
8.9 |
9.2 |
19.4 |
20.1 |
20.3 |
24 |
25.4 |
25.7 |
18.3 |
18.8 |
19 |
18.7 |
19.5 |
19.9 |
12.7 |
12.6 |
12.7 |
9.5 |
10.1 |
10.3 |
2.1 |
3.1 |
3.3 |
-2.8 |
-2.7 |
-2.7 |
-2.2 |
1.6 |
水温 (℃) |
6.4 |
5.8 |
5.7 |
11.8 |
8 |
7.5 |
22 |
9.5 |
7.4 |
18 |
9.2 |
7.5 |
16.3 |
15 |
14.7 |
14 |
13 |
12.9 |
5.2 |
4.5 |
4.4 |
1.5 |
1.7 |
1.7 |
0.6 |
1.4 |
1.8 |
0.2 |
1 |
流量 (m3/s) |
124.31 |
124.31 |
124.31 |
57.43 |
57.43 |
57.43 |
15.89 |
15.89 |
15.89 |
21.14 |
21.14 |
21.14 |
18.09 |
18.09 |
18.09 |
13.3 |
13.3 |
13.3 |
94.07 |
94.07 |
94.07 |
31.72 |
31.72 |
31.72 |
18.06 |
18.06 |
18.06 |
37.27 |
6.47 |
採取水深 (m) |
0.5 |
30 |
60 |
0.5 |
33 |
66 |
0.5 |
27 |
53 |
0.5 |
25.5 |
50 |
0.5 |
21.5 |
42 |
0.5 |
21.5 |
42 |
0.5 |
24 |
47 |
0.5 |
29.5 |
58 |
0.5 |
28.5 |
56 |
0.5 |
0.5 |
全水深 (m) |
61 |
61 |
61 |
67 |
67 |
67 |
54 |
54 |
54 |
51 |
51 |
51 |
43 |
43 |
43 |
43 |
43 |
43 |
48 |
48 |
48 |
59 |
59 |
59 |
57 |
57 |
57 |
51 |
|
透明度 (m) |
1.7 |
|
|
2.8 |
|
|
3.2 |
|
|
2 |
|
|
0.8 |
|
|
0.7 |
|
|
2 |
|
|
1.2 |
|
|
2.5 |
|
|
1.1 |
|
外観 |
無色澄明 |
白濁 |
白濁 |
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 |
白濁 |
白濁 |
白濁 |
白濁 |
白濁 |
白濁 |
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 |
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 |
pH |
6.9 |
6.9 |
6.9 |
6.9 |
6.9 |
6.8 |
7.2 |
6.9 |
6.7 |
7.3 |
6.6 |
6.6 |
7.2 |
6.9 |
6.9 |
7.2 |
7.1 |
7.1 |
7 |
7 |
7 |
7.2 |
7.2 |
7.1 |
7.1 |
7.1 |
7 |
7.1 |
6.9 |
DO (mg/l) |
12 |
12 |
12 |
11 |
11 |
10 |
9.5 |
10 |
8.5 |
9.6 |
7.7 |
5.3 |
9.3 |
8.8 |
7.9 |
9.4 |
9.5 |
9.8 |
12 |
13 |
12 |
12 |
12 |
12 |
13 |
13 |
12 |
13 |
12 |
BOD (mg/l) |
0.6 |
0.7 |
0.7 |
0.9 |
0.6 |
0.7 |
1.0 |
0.7 |
0.8 |
1.1 |
0.9 |
0.9 |
1.0 |
1.2 |
1.4 |
0.8 |
0.8 |
0.9 |
0.6 |
0.7 |
0.8 |
0.7 |
0.5 |
0.5 |
0.9 |
0.9 |
0.7 |
0.6 |
0.5 |
COD (mg/l) |
1.6 |
2.0 |
2.1 |
2.1 |
1.3 |
1.8 |
2.2 |
1.5 |
1.8 |
3.0 |
1.8 |
2.2 |
2.1 |
3.3 |
3.7 |
2.1 |
2.0 |
2.2 |
1.8 |
1.9 |
2.1 |
1.7 |
1.5 |
1.5 |
1.9 |
1.8 |
1.5 |
1.5 |
1.1 |
SS (mg/l) |
3 |
11 |
12 |
2 |
2 |
7 |
1 |
1 |
9 |
2 |
2 |
15 |
8 |
30 |
52 |
6 |
13 |
10 |
4 |
7 |
4 |
3 |
3 |
3 |
2 |
1 |
2 |
1 |
1 |
大腸菌群数 (MPN/100ml) |
7.8 |
33 |
49 |
79 |
17 |
0 |
13 |
2 |
2 |
79 |
49 |
33 |
220 |
130 |
490 |
240 |
490 |
240 |
330 |
490 |
330 |
33 |
49 |
49 |
49 |
13 |
49 |
4.5 |
23 |
全窒素 (mg/l) |
0.38 |
0.38 |
0.39 |
0.45 |
0.34 |
0.41 |
0.24 |
0.29 |
0.41 |
0.38 |
0.32 |
0.51 |
0.33 |
0.55 |
0.64 |
0.26 |
0.27 |
0.26 |
0.32 |
0.29 |
0.34 |
0.35 |
0.29 |
0.30 |
0.31 |
0.38 |
0.32 |
0.27 |
0.31 |
全燐 (mg/l) |
0.009 |
0.014 |
0.016 |
0.007 |
0.005 |
0.009 |
0.013 |
0.009 |
0.016 |
0.015 |
0.008 |
0.019 |
0.013 |
0.036 |
0.057 |
0.012 |
0.014 |
0.013 |
0.010 |
0.010 |
0.011 |
0.007 |
0.008 |
0.008 |
0.008 |
0.008 |
0.008 |
0.004 |
0.008 |
全亜鉛 (mg/l) |
0.012 |
|
|
0.010 |
|
|
0.007 |
|
|
0.010 |
|
|
0.017 |
|
|
0.011 |
|
|
0.023 |
|
|
0.010 |
|
|
0.019 |
|
|
0.017 |
0.023 |
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 |
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
< 2 |
透視度 |
> 100 |
45 |
40 |
> 100 |
> 100 |
73 |
> 100 |
> 100 |
60 |
> 100 |
> 100 |
45 |
50 |
25 |
20 |
44 |
45 |
48 |
50 |
46 |
45 |
90 |
85 |
85 |
> 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) |
|
|
|
0.23 |
0.22 |
0.24 |
|
|
|
0.18 |
0.21 |
0.26 |
0.20 |
0.23 |
0.24 |
|
|
|
0.19 |
0.19 |
0.18 |
|
|
|
0.18 |
0.18 |
0.17 |
|
0.21 |