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 |
2017.05.22 |
2017.05.22 |
2017.05.22 |
2017.06.14 |
2017.06.14 |
2017.06.14 |
2017.07.18 |
2017.07.18 |
2017.07.18 |
2017.08.09 |
2017.08.09 |
2017.08.09 |
2017.10.06 |
2017.10.06 |
2017.10.06 |
2017.11.06 |
2017.11.06 |
2017.11.06 |
2017.11.20 |
2017.11.20 |
2017.11.20 |
2017.12.13 |
2017.12.13 |
2017.12.13 |
2018.01.10 |
2018.01.10 |
2018.01.10 |
2018.02.07 |
2018.02.07 |
2018.02.07 |
2018.03.07 |
2018.03.07 |
2018.03.07 |
採取時刻 |
1015 |
1128 |
1205 |
1030 |
1145 |
1230 |
1020 |
1123 |
1157 |
1100 |
1145 |
1205 |
1010 |
1055 |
1115 |
1020 |
1105 |
1130 |
1005 |
1120 |
1205 |
1015 |
1131 |
1210 |
1002 |
1126 |
1207 |
1025 |
1045 |
1130 |
1030 |
1100 |
1140 |
天候 |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
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 |
雪 |
雪 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
気温 (℃) |
22.3 |
23.0 |
24.0 |
19.3 |
20.6 |
20.8 |
24.3 |
24.8 |
25.5 |
23.0 |
23.2 |
23.4 |
13.0 |
13.4 |
13.6 |
10.3 |
10.8 |
11.4 |
-2.0 |
-1.8 |
-1.7 |
-3.1 |
-3.4 |
-3.4 |
-2.0 |
-2.2 |
-2.2 |
-2.8 |
-2.7 |
-2.6 |
-1.5 |
-1.2 |
-1.0 |
水温 (℃) |
14.0 |
9.5 |
9.2 |
15.5 |
10.5 |
8.9 |
24.0 |
15.0 |
10.5 |
22.2 |
15.8 |
15.1 |
14.9 |
13.7 |
13.0 |
11.6 |
11.1 |
10.8 |
6.1 |
6.5 |
6.8 |
2.0 |
2.1 |
2.1 |
0.8 |
0.8 |
0.8 |
1.5 |
1.4 |
1.2 |
1.8 |
1.8 |
1.5 |
流量 (m3/s) |
55.50 |
55.50 |
55.50 |
30.61 |
30.61 |
30.61 |
18.50 |
18.50 |
18.50 |
32.00 |
32.00 |
32.00 |
19.51 |
19.51 |
19.51 |
31.35 |
31.35 |
31.35 |
60.10 |
60.10 |
60.10 |
16.00 |
16.00 |
16.00 |
47.80 |
47.80 |
47.80 |
15.40 |
15.40 |
15.40 |
38.84 |
38.84 |
38.84 |
採取水深 (m) |
0.5 |
30.5 |
60 |
0.5 |
28.5 |
56 |
0.5 |
23.5 |
46 |
0.5 |
23 |
45 |
0.5 |
23 |
45 |
0.5 |
27.5 |
54 |
0.5 |
23.5 |
46 |
0.5 |
28.5 |
56 |
0.5 |
28.5 |
56 |
0.5 |
6.5 |
12 |
0.5 |
4 |
7 |
全水深 (m) |
61.00 |
61.00 |
61.00 |
57.00 |
57.00 |
57.00 |
47.00 |
47.00 |
47.00 |
46.00 |
46.00 |
46.00 |
46.00 |
46.00 |
46.00 |
55.00 |
55.00 |
55.00 |
47.00 |
47.00 |
47.00 |
57.00 |
57.00 |
57.00 |
57.00 |
57.00 |
57.00 |
13.00 |
13.00 |
13.00 |
8.00 |
8.00 |
8.00 |
外観 |
無色澄明 |
微白濁 |
微白濁 |
無色澄明 |
無色澄明 |
白濁 |
無色澄明 |
微白濁 |
微白濁 |
無色澄明 |
白濁 |
濃白濁 |
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 |
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 |
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 |
なし |
pH |
7.2 |
7.0 |
6.8 |
7.6 |
7.2 |
7.0 |
7.5 |
6.8 |
6.6 |
7.6 |
7.4 |
6.9 |
7.2 |
7.2 |
7.1 |
7.3 |
7.3 |
7.2 |
7.2 |
7.1 |
7.1 |
7.2 |
7.1 |
7.1 |
7.1 |
7.0 |
7.0 |
7.1 |
7.0 |
6.9 |
6.9 |
6.9 |
6.8 |
DO (mg/l) |
10.9 |
11.0 |
10.0 |
10.6 |
10.0 |
8.5 |
8.8 |
7.3 |
6.3 |
8.2 |
8.2 |
6.3 |
9.2 |
9.3 |
9.6 |
10.1 |
10.2 |
10.2 |
11.3 |
11.2 |
11.3 |
12.8 |
12.7 |
12.7 |
13.3 |
13.3 |
13.0 |
13.2 |
12.7 |
12.6 |
13.3 |
13.4 |
13.2 |
BOD (mg/l) |
0.8 |
0.6 |
0.8 |
0.6 |
< 0.5 |
< 0.5 |
0.9 |
0.5 |
0.7 |
0.6 |
0.5 |
0.8 |
1.0 |
1.0 |
1.0 |
1.2 |
< 0.5 |
0.7 |
0.9 |
0.8 |
0.8 |
0.8 |
< 0.5 |
0.5 |
0.6 |
< 0.5 |
0.6 |
< 0.5 |
< 0.5 |
< 0.5 |
0.5 |
0.7 |
0.6 |
COD (mg/l) |
1.4 |
1.4 |
1.3 |
2.4 |
2.0 |
1.4 |
1.9 |
3.0 |
1.8 |
1.9 |
2.3 |
3.2 |
1.9 |
2.2 |
2.3 |
2.6 |
2.3 |
2.4 |
1.8 |
1.7 |
1.7 |
1.4 |
1.3 |
1.4 |
1.4 |
1.2 |
1.3 |
0.9 |
0.9 |
1.0 |
1.7 |
1.7 |
1.5 |
SS (mg/l) |
1 |
7 |
7 |
2 |
2 |
8 |
1 |
10 |
11 |
3 |
12 |
32 |
3 |
8 |
9 |
3 |
3 |
3 |
3 |
4 |
4 |
1 |
1 |
8 |
1 |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
3 |
2 |
3 |
大腸菌群数 (MPN/100ml) |
2.0E+00 |
7.8E+00 |
2.0E+00 |
2.2E+01 |
7.9E+01 |
1.3E+01 |
1.4E+03 |
4.9E+02 |
2.4E+02 |
1.1E+02 |
3.3E+02 |
1.7E+02 |
1.7E+02 |
2.4E+02 |
1.3E+03 |
3.3E+02 |
7.0E+01 |
2.4E+02 |
1.7E+02 |
4.9E+02 |
3.3E+02 |
3.3E+01 |
1.1E+02 |
7.9E+01 |
7.9E+02 |
1.4E+03 |
3.3E+03 |
3.3E+01 |
4.9E+01 |
4.9E+01 |
4.9E+01 |
4.9E+01 |
2.3E+01 |
全窒素 (mg/l) |
0.25 |
0.23 |
0.33 |
0.30 |
0.23 |
0.29 |
0.21 |
0.38 |
0.34 |
0.29 |
0.39 |
0.56 |
0.23 |
0.26 |
0.23 |
0.33 |
0.36 |
0.25 |
0.25 |
0.25 |
0.23 |
0.21 |
0.23 |
0.26 |
0.28 |
0.22 |
0.23 |
0.28 |
0.26 |
0.25 |
0.44 |
0.40 |
0.40 |
全燐 (mg/l) |
0.012 |
0.014 |
0.014 |
0.012 |
0.009 |
0.014 |
0.011 |
0.027 |
0.018 |
0.013 |
0.027 |
0.045 |
0.013 |
0.017 |
0.016 |
0.023 |
0.016 |
0.014 |
0.011 |
0.013 |
0.015 |
0.008 |
0.007 |
0.014 |
0.008 |
0.007 |
0.007 |
0.008 |
0.008 |
0.007 |
0.012 |
0.012 |
0.012 |
全亜鉛 (mg/l) |
0.007 |
0.009 |
0.009 |
0.007 |
0.007 |
0.007 |
0.006 |
0.011 |
0.008 |
0.006 |
0.009 |
0.014 |
0.006 |
0.008 |
0.009 |
0.009 |
0.008 |
0.009 |
0.014 |
0.010 |
0.010 |
0.013 |
0.011 |
0.013 |
0.014 |
0.012 |
0.012 |
0.016 |
0.013 |
0.015 |
0.018 |
0.017 |
0.018 |
ノニルフェノール (mg/l) |
< 0.00006 |
|
|
< 0.00006 |
|
|
< 0.00006 |
|
|
< 0.00006 |
|
|
< 0.00006 |
|
|
< 0.00006 |
|
|
< 0.00006 |
|
|
< 0.00006 |
|
|
< 0.00006 |
|
|
< 0.00006 |
|
|
< 0.00006 |
|
|
カドミウム (mg/l) |
< 0.0003 |
|
|
|
|
|
< 0.0003 |
|
|
|
|
|
< 0.0003 |
|
|
|
|
|
< 0.0003 |
|
|
|
|
|
< 0.0003 |
|
|
|
|
|
< 0.0003 |
|
|
全シアン (mg/l) |
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
鉛 (mg/l) |
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
0.002 |
|
|
六価クロム (mg/l) |
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
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 |
|
|
PCB (mg/l) |
|
|
|
|
|
|
< 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) |
|
|
|
|
|
|
< 0.01 |
|
|
|
|
|
|
|
|
|
|
|
< 0.01 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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) |
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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) |
|
|
|
|
|
|
< 0.003 |
|
|
|
|
|
|
|
|
|
|
|
< 0.003 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
テトラクロロエチレン (mg/l) |
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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) |
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
亜硝酸性窒素 (mg/l) |
< 0.001 |
0.001 |
< 0.001 |
< 0.001 |
< 0.001 |
< 0.001 |
0.002 |
0.002 |
< 0.001 |
< 0.001 |
< 0.001 |
0.002 |
0.001 |
< 0.001 |
< 0.001 |
0.001 |
< 0.001 |
< 0.001 |
< 0.001 |
< 0.001 |
< 0.001 |
0.001 |
0.002 |
0.001 |
0.001 |
0.001 |
< 0.001 |
0.004 |
0.003 |
0.003 |
0.002 |
0.002 |
0.002 |
ふっ素 (mg/l) |
|
|
|
|
|
|
< 0.05 |
|
|
|
|
|
|
|
|
|
|
|
< 0.05 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
アンモニア性窒素 (mg/l) |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
クロロフィル-a (ug/l) |
2.3 |
< 2.0 |
< 2.0 |
5.2 |
< 2.0 |
< 2.0 |
3.2 |
< 2.0 |
< 2.0 |
3.7 |
< 2.0 |
< 2.0 |
2.3 |
< 2.0 |
< 2.0 |
5.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
< 2.0 |
ほう素 (mg/l) |
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
|
|
|
0.05 |
|
|
|
|
|
|
|
|
|
|
|
0.12 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,4-ジオキサン (mg/l) |
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ふん便性大腸菌群数 (個/100mL) |
< 2 |
< 2 |
< 2 |
< 2 |
22 |
< 2 |
4 |
14 |
18 |
12 |
130 |
110 |
71 |
170 |
230 |
14 |
20 |
26 |
8 |
12 |
16 |
< 2 |
< 2 |
< 2 |
3 |
6 |
4 |
< 2 |
< 2 |
< 2 |
< 2 |
< 2 |
< 2 |
直鎖アルキルベンゼンスルホン酸及びその塩 (mg/l) |
< 0.0006 |
|
|
< 0.0006 |
|
|
< 0.0006 |
|
|
< 0.0006 |
|
|
< 0.0006 |
|
|
< 0.0006 |
|
|
< 0.0006 |
|
|
< 0.0006 |
|
|
< 0.0006 |
|
|
< 0.0006 |
|
|
< 0.0006 |
|
|
オルトリン酸態リン (mg/l) |
< 0.003 |
0.005 |
0.004 |
< 0.003 |
0.003 |
0.006 |
< 0.003 |
0.011 |
0.007 |
< 0.003 |
0.005 |
0.007 |
< 0.003 |
0.004 |
0.005 |
0.003 |
< 0.003 |
0.007 |
< 0.003 |
0.003 |
0.005 |
0.003 |
0.003 |
0.006 |
0.003 |
0.004 |
0.004 |
0.005 |
0.003 |
0.003 |
0.003 |
0.004 |
0.004 |