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 |
2008.04.16 |
2008.04.16 |
2008.04.16 |
2008.05.21 |
2008.05.21 |
2008.05.21 |
2008.06.18 |
2008.06.18 |
2008.06.18 |
2008.08.04 |
2008.08.04 |
2008.08.04 |
2008.09.04 |
2008.09.04 |
2008.09.04 |
2008.09.17 |
2008.09.17 |
2008.09.17 |
2008.10.08 |
2008.10.08 |
2008.10.08 |
2008.11.12 |
2008.11.12 |
2008.11.12 |
2008.12.10 |
2008.12.10 |
2008.12.10 |
2009.01.07 |
2009.01.07 |
2009.01.07 |
2009.02.04 |
2009.03.04 |
採取時刻 |
1000 |
1050 |
1115 |
0950 |
1035 |
1055 |
0950 |
1040 |
1100 |
1010 |
1055 |
1115 |
0950 |
1035 |
1055 |
1120 |
1158 |
1220 |
1000 |
1047 |
1108 |
0945 |
1027 |
1040 |
0945 |
1024 |
1047 |
0930 |
1020 |
1040 |
1030 |
1005 |
天候 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
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 |
曇り |
曇り |
曇り |
雪 |
曇り |
気温 (℃) |
17 |
18.7 |
19.2 |
13.9 |
14.2 |
14.4 |
18.2 |
19.1 |
19.7 |
24 |
25.1 |
25.5 |
22.5 |
22.7 |
22.9 |
25 |
25.4 |
25.6 |
16.8 |
17.4 |
17.5 |
7.4 |
8.3 |
8.6 |
3.5 |
4.6 |
7 |
-1.0 |
-0.3 |
0.0 |
-0.9 |
0.5 |
水温 (℃) |
9.2 |
8.9 |
8.1 |
12 |
10.4 |
8.8 |
17.4 |
12.4 |
11.7 |
25 |
10.6 |
8 |
21.2 |
15.5 |
8.5 |
21.5 |
16.5 |
15.2 |
16.5 |
14 |
9 |
9.2 |
9.5 |
9 |
5.8 |
5.6 |
5.5 |
1.8 |
2.5 |
2.8 |
2.5 |
2.6 |
流量 (m3/s) |
85.78 |
85.78 |
85.78 |
41.42 |
41.42 |
41.42 |
10.59 |
10.59 |
10.59 |
43.17 |
43.17 |
43.17 |
35.39 |
35.39 |
35.39 |
13.7 |
13.7 |
13.7 |
12.04 |
12.04 |
12.04 |
16.33 |
16.33 |
16.33 |
44.51 |
44.51 |
44.51 |
18.96 |
18.96 |
18.96 |
18.64 |
|
採取水深 (m) |
0.5 |
31.5 |
62 |
0.5 |
30.5 |
60 |
0.5 |
28 |
55 |
0.5 |
25 |
48 |
0.5 |
22.5 |
44 |
0.5 |
21.5 |
42 |
0.5 |
22 |
43 |
0.5 |
23.5 |
46 |
0.5 |
27.5 |
54 |
0.5 |
24.5 |
48 |
0.5 |
0.5 |
全水深 (m) |
63 |
63 |
63 |
61 |
61 |
61 |
56 |
56 |
56 |
49 |
49 |
49 |
45 |
45 |
45 |
43 |
43 |
43 |
44 |
44 |
44 |
47 |
47 |
47 |
55 |
55 |
55 |
49 |
49 |
49 |
1 |
1 |
透明度 (m) |
1.8 |
|
|
2.8 |
|
|
2.8 |
|
|
1.2 |
|
|
1.3 |
|
|
2 |
|
|
2.7 |
|
|
2.7 |
|
|
3 |
|
|
3 |
|
|
2.5 |
2.5 |
外観 |
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 |
白濁 |
白濁 |
茶色 |
茶色 |
茶濁 |
無色澄明 |
茶色 |
茶色 |
無色澄明 |
白濁 |
白濁 |
無色澄明 |
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 |
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 |
7.0 |
7.0 |
6.9 |
7.0 |
7.1 |
7.0 |
7.5 |
6.9 |
6.8 |
7.9 |
6.7 |
6.6 |
7.2 |
6.8 |
6.5 |
7.5 |
6.8 |
6.6 |
7.4 |
7.0 |
6.6 |
7.2 |
7.2 |
7.1 |
7.0 |
7.0 |
6.9 |
7.2 |
7.2 |
7.1 |
7.1 |
6.9 |
DO (mg/l) |
12 |
12 |
11 |
10 |
10 |
10 |
10 |
9.8 |
9.7 |
10 |
7.7 |
4.5 |
9.2 |
9.0 |
2.7 |
9.0 |
6.1 |
2.1 |
9.6 |
7.8 |
1.2 |
10 |
10 |
11 |
12 |
12 |
12 |
13 |
13 |
13 |
13 |
13 |
BOD (mg/l) |
0.6 |
0.6 |
0.6 |
1.0 |
0.7 |
0.7 |
1.3 |
0.7 |
0.7 |
1.4 |
0.6 |
0.7 |
0.8 |
0.9 |
0.6 |
0.8 |
0.7 |
0.7 |
1.1 |
1.1 |
1.0 |
0.6 |
0.7 |
0.7 |
0.5 |
0.5 |
0.6 |
0.9 |
0.8 |
0.7 |
0.6 |
0.5 |
COD (mg/l) |
1.5 |
1.6 |
1.6 |
2.1 |
1.5 |
1.6 |
2.8 |
1.8 |
1.8 |
3.4 |
1.3 |
1.8 |
3.4 |
3.4 |
1.8 |
2.6 |
2.6 |
2.8 |
2.5 |
2.6 |
2.6 |
2.3 |
2.5 |
2.5 |
1.5 |
1.7 |
1.9 |
1.8 |
1.9 |
1.9 |
1.4 |
1.3 |
SS (mg/l) |
4 |
4 |
4 |
4 |
3 |
4 |
3 |
3 |
10 |
5 |
4 |
8 |
4 |
8 |
10 |
6 |
4 |
5 |
2 |
4 |
14 |
1 |
1 |
2 |
1 |
1 |
2 |
1 |
2 |
2 |
1 |
2 |
大腸菌群数 (MPN/100ml) |
4.5E+00 |
4.5E+00 |
< 1.8E+00 |
7.8E+00 |
1.7E+01 |
< 1.8E+00 |
1.3E+01 |
1.3E+01 |
4.5E+00 |
7.9E+01 |
2.3E+01 |
7.9E+01 |
3.3E+02 |
2.4E+02 |
1.3E+02 |
7.8E+00 |
4.5E+00 |
4.5E+00 |
2.4E+02 |
2.4E+02 |
4.9E+02 |
2.4E+02 |
1.3E+02 |
4.9E+02 |
2.2E+02 |
7.9E+01 |
7.9E+01 |
1.7E+01 |
2.3E+01 |
4.5E+00 |
1.3E+01 |
7.8E+00 |
全窒素 (mg/l) |
0.36 |
0.32 |
0.37 |
0.51 |
0.35 |
0.32 |
0.30 |
0.22 |
0.27 |
0.41 |
0.28 |
0.42 |
0.57 |
0.38 |
0.38 |
0.18 |
0.29 |
0.33 |
0.22 |
0.24 |
0.45 |
0.24 |
0.26 |
0.24 |
0.27 |
0.26 |
0.28 |
0.30 |
0.28 |
0.29 |
0.29 |
0.38 |
全燐 (mg/l) |
0.009 |
0.008 |
0.008 |
0.006 |
0.005 |
0.006 |
0.009 |
0.012 |
0.013 |
0.012 |
0.008 |
0.025 |
0.016 |
0.013 |
0.013 |
0.009 |
0.014 |
0.015 |
0.008 |
0.010 |
0.015 |
0.009 |
0.008 |
0.011 |
0.009 |
0.010 |
0.009 |
0.008 |
0.008 |
0.008 |
0.006 |
0.007 |
全亜鉛 (mg/l) |
0.016 |
|
|
0.018 |
|
|
0.005 |
|
|
0.013 |
|
|
0.007 |
|
|
< 0.005 |
|
|
0.007 |
|
|
0.012 |
|
|
0.017 |
|
|
0.024 |
|
|
0.020 |
0.019 |
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 |
|
|
|
7 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
< 2 |
透視度 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
> 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) |
|
|
|
0.13 |
0.14 |
0.15 |
|
|
|
0.03 |
0.20 |
0.25 |
|
|
|
0.05 |
0.15 |
0.15 |
|
|
|
0.15 |
0.15 |
0.16 |
|
|
|
0.17 |
0.17 |
0.17 |
|
0.29 |