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 |
2010.04.21 |
2010.04.21 |
2010.04.21 |
2010.05.19 |
2010.05.19 |
2010.05.19 |
2010.06.09 |
2010.06.09 |
2010.06.09 |
2010.07.21 |
2010.07.21 |
2010.07.21 |
2010.08.25 |
2010.08.25 |
2010.08.25 |
2010.09.28 |
2010.09.28 |
2010.09.28 |
2010.10.13 |
2010.10.13 |
2010.10.13 |
2010.11.29 |
2010.11.29 |
2010.11.29 |
2010.12.15 |
2010.12.15 |
2010.12.15 |
2011.01.05 |
2011.01.05 |
2011.01.05 |
2011.02.02 |
2011.03.02 |
採取時刻 |
1040 |
1125 |
1150 |
1050 |
1130 |
1150 |
1025 |
1110 |
1130 |
1020 |
1053 |
1105 |
0940 |
1020 |
1040 |
1140 |
1235 |
1255 |
1055 |
1150 |
1210 |
1140 |
1230 |
1250 |
1030 |
1120 |
1040 |
0920 |
1005 |
1025 |
1045 |
1010 |
天候 |
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 |
雨 |
雨 |
雨 |
曇り |
曇り |
曇り |
雪 |
雪 |
雪 |
雪 |
雪 |
雪 |
雪 |
雪 |
雪 |
晴れ |
曇り |
気温 (℃) |
6.1 |
5.9 |
5.8 |
19.5 |
20 |
20.2 |
20.5 |
22.3 |
22.8 |
26.2 |
27.1 |
27.3 |
26 |
26.7 |
27 |
17.8 |
17.9 |
18 |
20.7 |
21.4 |
21.6 |
1 |
1 |
1 |
-2.5 |
-2.8 |
-3 |
-2.5 |
-2.0 |
-1.8 |
0.0 |
-0.5 |
水温 (℃) |
6 |
5.7 |
5.5 |
10 |
7 |
6.9 |
16 |
10.7 |
8.2 |
23 |
15 |
8.1 |
21.5 |
16.8 |
10 |
15.8 |
14.7 |
14 |
17.3 |
15.2 |
13 |
4.3 |
5 |
5.1 |
4.3 |
4 |
4 |
1.5 |
2.0 |
2.0 |
1.0 |
1.0 |
流量 (m3/s) |
116.09 |
116.09 |
116.09 |
57.27 |
57.27 |
57.27 |
14.2 |
14.2 |
14.2 |
21.65 |
21.65 |
21.65 |
31.88 |
31.88 |
31.88 |
25.7 |
25.7 |
25.7 |
28.06 |
28.06 |
28.06 |
34.89 |
34.89 |
34.89 |
61.25 |
61.25 |
61.25 |
19.3 |
19.3 |
19.3 |
12.22 |
20.87 |
採取水深 (m) |
0.5 |
31.5 |
62 |
0.5 |
30.5 |
60 |
0.5 |
29 |
57 |
0.5 |
24 |
47 |
0.5 |
23 |
45 |
0.5 |
22 |
43 |
0.5 |
22 |
43 |
0.5 |
22.5 |
44 |
0.5 |
30 |
59 |
0.5 |
30.5 |
60 |
0.5 |
0.5 |
全水深 (m) |
63 |
63 |
63 |
61 |
61 |
61 |
58 |
58 |
58 |
48 |
48 |
48 |
46 |
46 |
46 |
44 |
44 |
44 |
44 |
44 |
44 |
45 |
45 |
45 |
60 |
60 |
60 |
61 |
61 |
61 |
61 |
61 |
透明度 (m) |
2.9 |
|
|
1.5 |
|
|
2.8 |
|
|
2.1 |
|
|
1.5 |
|
|
2 |
|
|
3 |
|
|
1.2 |
|
|
1 |
|
|
1.8 |
|
|
3 |
|
外観 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
無色澄明 |
微白濁 |
白濁 |
無色澄明 |
無色澄明 |
白濁 |
茶色 |
茶濁 |
茶濁 |
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 |
微白濁 |
微白濁 |
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 |
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 |
6.9 |
6.9 |
6.9 |
7.2 |
7.0 |
6.9 |
7.4 |
7.1 |
7.0 |
7.4 |
7.1 |
6.8 |
7.2 |
7.0 |
7.0 |
7.3 |
7.1 |
6.9 |
7.1 |
7.0 |
6.9 |
6.9 |
6.9 |
6.8 |
7.0 |
6.9 |
6.9 |
7.2 |
6.9 |
DO (mg/l) |
12 |
12 |
12 |
11 |
11 |
11 |
10 |
10 |
8.9 |
9.2 |
9.4 |
5.3 |
9.3 |
9.0 |
1.3 |
9.2 |
9.4 |
9.5 |
9.0 |
8.1 |
2.8 |
11 |
10 |
11 |
11 |
11 |
11 |
12 |
12 |
12 |
13 |
12 |
BOD (mg/l) |
0.8 |
0.8 |
0.6 |
< 0.5 |
< 0.5 |
< 0.5 |
0.7 |
< 0.5 |
0.8 |
1.2 |
0.6 |
0.5 |
1.1 |
0.5 |
0.6 |
< 0.5 |
< 0.5 |
< 0.5 |
0.6 |
< 0.5 |
< 0.5 |
< 0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.7 |
0.6 |
< 0.5 |
0.6 |
0.5 |
< 0.5 |
COD (mg/l) |
1.9 |
1.8 |
1.9 |
1.1 |
1.3 |
1.2 |
1.1 |
1.4 |
1.6 |
3.7 |
3.1 |
2.5 |
2.5 |
3.8 |
2.9 |
2.7 |
2.3 |
2.3 |
1.9 |
1.9 |
2.6 |
1.5 |
1.6 |
1.7 |
2.5 |
2.6 |
2.9 |
1.4 |
1.5 |
1.6 |
1.4 |
1.1 |
SS (mg/l) |
6 |
5 |
6 |
4 |
6 |
6 |
1 |
6 |
12 |
2 |
4 |
6 |
5 |
23 |
33 |
8 |
6 |
6 |
1 |
3 |
12 |
6 |
6 |
7 |
8 |
8 |
17 |
1 |
1 |
2 |
1 |
< 1 |
大腸菌群数 (MPN/100ml) |
1.7E+03 |
4.9E+01 |
4.9E+01 |
1.7E+01 |
1.3E+02 |
3.3E+02 |
4.9E+01 |
3.3E+01 |
2.3E+01 |
2.8E+03 |
7.9E+02 |
1.7E+02 |
4.9E+02 |
2.4E+03 |
4.9E+03 |
7.9E+02 |
7.9E+02 |
7.9E+02 |
1.7E+02 |
2.2E+02 |
4.9E+01 |
7.9E+01 |
3.3E+01 |
4.9E+01 |
3.3E+02 |
3.3E+02 |
2.4E+02 |
1.4E+02 |
4.9E+01 |
3.1E+01 |
1.3E+01 |
7.8E+00 |
全窒素 (mg/l) |
0.36 |
0.36 |
0.34 |
0.23 |
0.23 |
0.23 |
0.22 |
0.28 |
0.39 |
0.27 |
0.29 |
0.32 |
0.35 |
0.51 |
0.49 |
0.49 |
0.49 |
0.40 |
0.26 |
0.24 |
0.42 |
0.31 |
0.42 |
0.42 |
0.37 |
0.34 |
0.38 |
0.29 |
0.33 |
0.33 |
0.39 |
0.33 |
全燐 (mg/l) |
0.012 |
0.012 |
0.012 |
0.011 |
0.013 |
0.010 |
0.009 |
0.010 |
0.016 |
0.013 |
0.014 |
0.010 |
0.014 |
0.044 |
0.031 |
0.016 |
0.015 |
0.014 |
0.044 |
0.011 |
0.022 |
0.011 |
0.013 |
0.011 |
0.017 |
0.018 |
0.023 |
0.008 |
0.009 |
0.009 |
0.008 |
0.007 |
全亜鉛 (mg/l) |
0.017 |
0.024 |
0.020 |
0.010 |
0.010 |
0.012 |
0.010 |
0.010 |
0.018 |
0.009 |
0.011 |
0.015 |
0.010 |
0.021 |
0.018 |
0.019 |
0.015 |
0.014 |
0.007 |
0.008 |
0.009 |
0.007 |
0.015 |
0.010 |
0.014 |
0.010 |
0.016 |
0.013 |
0.011 |
0.010 |
0.017 |
0.021 |
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 |
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 |
|
|
|
3 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
< 2 |
透視度 |
75 |
73 |
75 |
82 |
70 |
70 |
> 100 |
75 |
41 |
> 100 |
95 |
60 |
65 |
23 |
27 |
> 100 |
90 |
88 |
> 100 |
> 100 |
40 |
> 100 |
85 |
85 |
40 |
35 |
35 |
> 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) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.22 |
0.22 |
0.22 |
|
0.20 |
ふん便性大腸菌群数 (個/100mL) |
1 |
0 |
0 |
12 |
40 |
41 |
0 |
2 |
0 |
8 |
35 |
41 |
2 |
280 |
92 |
160 |
160 |
130 |
4 |
34 |
5 |
10 |
2 |
4 |
33 |
24 |
60 |
8 |
5 |
3 |
5 |
2 |