測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
50301 |
田瀬ダム貯水池 |
L‐5(ダムサイト) |
A |
測定結果
採取年月日 |
2019.04.17 |
2019.04.17 |
2019.04.17 |
2019.05.15 |
2019.05.15 |
2019.05.15 |
2019.06.12 |
2019.06.12 |
2019.06.12 |
2019.07.10 |
2019.07.10 |
2019.07.10 |
2019.08.21 |
2019.08.21 |
2019.08.21 |
2019.09.11 |
2019.09.11 |
2019.09.11 |
2019.10.09 |
2019.10.09 |
2019.10.09 |
2019.11.13 |
2019.11.13 |
2019.11.13 |
2019.12.11 |
2019.12.11 |
2019.12.11 |
2020.01.08 |
2020.01.08 |
2020.01.08 |
2020.02.05 |
2020.02.05 |
2020.02.05 |
2020.03.04 |
2020.03.04 |
2020.03.04 |
採取時刻 |
0940 |
1013 |
1023 |
0934 |
1008 |
1020 |
0944 |
1023 |
1037 |
0926 |
0954 |
1005 |
0957 |
1037 |
1045 |
0923 |
0954 |
1004 |
0926 |
1005 |
1016 |
1000 |
1132 |
1157 |
1015 |
1035 |
1048 |
0933 |
1003 |
1024 |
0910 |
0946 |
1010 |
0905 |
0948 |
1027 |
天候 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
雨 |
雨 |
雨 |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
雪 |
雪 |
雪 |
雪 |
雪 |
雪 |
曇り |
曇り |
曇り |
気温 (℃) |
18.5 |
18.5 |
19.2 |
16.1 |
18.1 |
18.0 |
17.9 |
21.5 |
20.5 |
21.2 |
21.9 |
23.0 |
28.9 |
26.9 |
26.5 |
19.2 |
19.3 |
19.3 |
17.9 |
20.4 |
21.3 |
13.9 |
14.5 |
15.4 |
7.0 |
7.3 |
7.3 |
0.8 |
1.0 |
1.1 |
-0.4 |
-0.9 |
-1.4 |
2.8 |
3.5 |
3.8 |
水温 (℃) |
9.1 |
7.0 |
5.8 |
18.0 |
9.0 |
5.8 |
17.8 |
10.1 |
5.8 |
21.0 |
16.8 |
6.2 |
25.3 |
22.8 |
7.0 |
22.8 |
22.1 |
6.7 |
19.1 |
18.0 |
8.0 |
14.1 |
12.6 |
7.9 |
9.0 |
8.1 |
6.6 |
4.9 |
4.1 |
4.0 |
3.0 |
3.7 |
3.0 |
4.3 |
3.9 |
3.7 |
流量 (m3/s) |
24.59 |
24.59 |
24.59 |
15.22 |
15.22 |
15.22 |
13.13 |
13.13 |
13.13 |
15.18 |
15.18 |
15.18 |
24.16 |
24.16 |
24.16 |
10.17 |
10.17 |
10.17 |
17.46 |
17.46 |
17.46 |
17.67 |
17.67 |
17.67 |
10.06 |
10.06 |
10.06 |
10.61 |
10.61 |
10.61 |
11.60 |
11.60 |
11.60 |
16.10 |
16.10 |
16.10 |
採取水深 (m) |
0.50 |
23.30 |
45.60 |
0.50 |
25.70 |
50.40 |
0.50 |
24.00 |
47.00 |
0.50 |
23.10 |
45.20 |
0.50 |
23.00 |
45.00 |
0.50 |
21.40 |
41.80 |
0.50 |
23.90 |
46.80 |
0.50 |
28.90 |
56.80 |
0.50 |
29.00 |
57.00 |
0.50 |
21.90 |
42.80 |
0.50 |
24.00 |
47.00 |
0.50 |
20.70 |
40.40 |
全水深 (m) |
46.60 |
46.60 |
46.60 |
51.40 |
51.40 |
51.40 |
48.00 |
48.00 |
48.00 |
46.20 |
46.20 |
46.20 |
46.00 |
46.00 |
46.00 |
42.80 |
42.80 |
42.80 |
47.80 |
47.80 |
47.80 |
57.80 |
57.80 |
57.80 |
58.00 |
58.00 |
58.00 |
43.80 |
43.80 |
43.80 |
48.00 |
48.00 |
48.00 |
41.40 |
41.40 |
41.40 |
透明度 (m) |
2.8 |
|
|
2.9 |
|
|
3.9 |
|
|
2.7 |
|
|
4.2 |
|
|
2.6 |
|
|
2.8 |
|
|
2.8 |
|
|
4.9 |
|
|
4.3 |
|
|
4.4 |
|
|
3.5 |
|
|
前日までの降雨状況 |
2日前小雨 |
2日前小雨 |
2日前小雨 |
前日小雨 |
前日小雨 |
前日小雨 |
4日前小雨 |
4日前小雨 |
4日前小雨 |
6日前雨 |
6日前雨 |
6日前雨 |
前日雨 |
前日雨 |
前日雨 |
前日小雨 |
前日小雨 |
前日小雨 |
前日雨 |
前日雨 |
前日雨 |
2日前小雨 |
2日前小雨 |
2日前小雨 |
5日前小雨 |
5日前小雨 |
5日前小雨 |
5日前小雨 |
5日前小雨 |
5日前小雨 |
2日前小雨 |
2日前小雨 |
2日前小雨 |
2日前小雨 |
2日前小雨 |
2日前小雨 |
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 |
無色澄明 |
無色澄明 |
無色澄明 |
茶色 |
無色澄明 |
無色澄明 |
微茶濁 |
無色澄明 |
無色澄明 |
微茶濁 |
無色澄明 |
無色澄明 |
茶色 |
無色澄明 |
無色澄明 |
微茶濁 |
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 |
臭気 |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
下水臭 |
なし |
なし |
下水臭 |
なし |
なし |
下水臭 |
なし |
なし |
強下水臭 |
なし |
なし |
下水臭 |
なし |
なし |
下水臭 |
なし |
なし |
下水臭 |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
pH |
7.8 |
7.4 |
7.2 |
9.1 |
7.5 |
7.0 |
8.2 |
7.3 |
6.9 |
8.0 |
7.4 |
7.0 |
7.7 |
7.3 |
6.9 |
7.5 |
7.2 |
7.0 |
7.5 |
7.4 |
6.9 |
7.4 |
7.3 |
7.0 |
7.5 |
7.3 |
6.9 |
7.4 |
7.4 |
7.4 |
7.4 |
7.4 |
7.4 |
7.5 |
7.4 |
7.4 |
DO (mg/l) |
12 |
10 |
9.6 |
10 |
10 |
6.5 |
10 |
8.3 |
2.4 |
9.6 |
7.3 |
2.1 |
8.9 |
6.6 |
1.8 |
7.9 |
6.2 |
1.5 |
8.3 |
7.7 |
1.2 |
9.3 |
9.0 |
3.1 |
9.8 |
9.0 |
< 0.5 |
11 |
11 |
11 |
11 |
11 |
11 |
12 |
11 |
11 |
BOD (mg/l) |
0.9 |
0.5 |
0.6 |
1.3 |
< 0.5 |
0.9 |
1.0 |
0.5 |
1.4 |
1.0 |
< 0.5 |
1.3 |
0.6 |
0.5 |
0.6 |
1.1 |
0.6 |
0.8 |
0.8 |
0.8 |
1.5 |
0.6 |
< 0.5 |
1.5 |
0.6 |
< 0.5 |
4.6 |
< 0.5 |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.5 |
0.6 |
0.5 |
COD (mg/l) |
1.7 |
1.6 |
1.7 |
2.9 |
1.7 |
2.2 |
2.7 |
2.2 |
3.2 |
3.0 |
3.0 |
4.9 |
2.2 |
1.9 |
5.0 |
2.3 |
1.8 |
5.3 |
2.4 |
3.3 |
6.8 |
2.6 |
2.0 |
5.9 |
2.3 |
1.8 |
9.7 |
2.3 |
2.2 |
2.3 |
1.6 |
1.7 |
1.8 |
1.7 |
1.7 |
1.7 |
SS (mg/l) |
2 |
1 |
2 |
2 |
1 |
2 |
1 |
1 |
4 |
1 |
1 |
2 |
1 |
< 1 |
2 |
3 |
1 |
5 |
2 |
3 |
5 |
1 |
1 |
6 |
< 1 |
< 1 |
6 |
1 |
< 1 |
1 |
< 1 |
< 1 |
< 1 |
< 1 |
1 |
1 |
大腸菌群数 (MPN/100ml) |
2.0E+00 |
0.0E+00 |
0.0E+00 |
7.8E+00 |
3.3E+01 |
1.3E+01 |
4.9E+03 |
3.3E+02 |
2.4E+02 |
7.9E+02 |
2.4E+02 |
2.4E+02 |
4.9E+02 |
1.3E+02 |
2.4E+02 |
4.9E+02 |
2.4E+03 |
4.9E+02 |
4.9E+02 |
3.3E+03 |
1.3E+03 |
3.3E+02 |
2.4E+02 |
1.3E+03 |
2.3E+01 |
2.3E+01 |
2.4E+02 |
3.3E+01 |
4.9E+01 |
4.9E+01 |
1.3E+01 |
2.3E+01 |
1.3E+01 |
2.0E+00 |
2.0E+00 |
1.3E+01 |
全窒素 (mg/l) |
0.46 |
0.48 |
0.70 |
0.36 |
0.50 |
0.93 |
0.50 |
0.62 |
1.3 |
0.55 |
0.63 |
2.3 |
0.39 |
0.48 |
3.3 |
0.58 |
0.57 |
2.7 |
0.50 |
0.66 |
3.3 |
0.55 |
0.54 |
2.5 |
0.48 |
0.56 |
5.6 |
0.51 |
0.47 |
0.49 |
0.48 |
0.47 |
0.50 |
0.53 |
0.57 |
0.55 |
全燐 (mg/l) |
0.008 |
0.008 |
0.013 |
0.010 |
0.009 |
0.016 |
0.013 |
0.013 |
0.033 |
0.019 |
0.022 |
0.024 |
0.009 |
0.011 |
0.026 |
0.019 |
0.013 |
0.048 |
0.015 |
0.031 |
0.079 |
0.007 |
0.010 |
0.042 |
0.007 |
0.009 |
0.10 |
0.006 |
0.006 |
0.008 |
0.006 |
0.005 |
0.007 |
0.009 |
0.007 |
0.008 |
全亜鉛 (mg/l) |
0.003 |
0.001 |
0.002 |
0.002 |
0.001 |
0.002 |
0.002 |
0.003 |
0.002 |
0.001 |
0.002 |
0.005 |
0.001 |
0.003 |
0.004 |
0.002 |
0.002 |
0.003 |
0.002 |
0.002 |
0.003 |
0.002 |
0.001 |
0.005 |
0.001 |
0.001 |
0.004 |
0.003 |
0.001 |
0.001 |
0.002 |
0.002 |
0.001 |
0.006 |
0.007 |
0.004 |
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 |
|
|
< 0.00006 |
|
|
カドミウム (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0003 |
|
|
|
|
|
|
|
|
|
|
|
< 0.0003 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
全シアン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
鉛 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
六価クロム (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
砒素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
総水銀 (mg/l) |
|
|
|
|
|
|
|
|
|
< 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) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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) |
0.003 |
0.002 |
0.001 |
0.003 |
0.002 |
0.001 |
0.004 |
0.003 |
0.010 |
0.004 |
0.002 |
< 0.001 |
0.007 |
< 0.001 |
< 0.001 |
0.007 |
0.009 |
< 0.001 |
0.003 |
0.006 |
< 0.001 |
0.004 |
0.007 |
0.002 |
0.004 |
0.005 |
< 0.001 |
0.002 |
0.002 |
0.002 |
0.001 |
0.001 |
0.001 |
0.001 |
0.001 |
0.001 |
ふっ素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.05 |
|
|
|
|
|
|
|
|
|
|
|
< 0.05 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
アンモニア性窒素 (mg/l) |
< 0.05 |
< 0.05 |
0.11 |
< 0.05 |
< 0.05 |
0.36 |
< 0.05 |
0.06 |
0.75 |
< 0.05 |
< 0.05 |
1.3 |
< 0.05 |
< 0.05 |
1.3 |
< 0.05 |
< 0.05 |
0.72 |
< 0.05 |
< 0.05 |
2.0 |
< 0.05 |
< 0.05 |
1.7 |
< 0.05 |
< 0.05 |
3.4 |
< 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 |
2 |
< 2 |
5 |
< 2 |
< 2 |
6 |
< 2 |
< 2 |
4 |
< 2 |
< 2 |
5 |
< 2 |
< 2 |
9 |
< 2 |
< 2 |
10 |
4 |
< 2 |
< 2 |
< 2 |
< 2 |
2 |
< 2 |
< 2 |
< 2 |
< 2 |
< 2 |
< 2 |
< 2 |
< 2 |
2 |
< 2 |
< 2 |
透視度 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
80 |
> 100 |
> 100 |
65 |
> 100 |
> 100 |
55 |
> 100 |
> 100 |
76 |
> 100 |
> 100 |
65 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
塩化物イオン (mg/l) |
|
|
|
4.2 |
4.5 |
4.7 |
|
|
|
|
|
|
4.2 |
4.2 |
4.8 |
|
|
|
|
|
|
3.9 |
3.9 |
4.6 |
|
|
|
|
|
|
4.4 |
4.3 |
4.3 |
|
|
|
ほう素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
|
|
|
|
|
|
0.28 |
|
|
|
|
|
|
|
|
|
|
|
0.44 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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 |
6 |
2 |
< 2 |
< 2 |
< 2 |
12 |
12 |
4 |
< 2 |
< 2 |
< 2 |
220 |
< 2 |
18 |
36 |
210 |
42 |
4 |
6 |
88 |
< 2 |
< 2 |
26 |
< 2 |
< 2 |
2 |
< 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 |
|
|
< 0.0006 |
|
|
オルトリン酸態リン (mg/l) |
< 0.003 |
< 0.003 |
0.004 |
< 0.003 |
< 0.003 |
< 0.003 |
< 0.003 |
0.007 |
0.008 |
< 0.003 |
0.008 |
< 0.003 |
< 0.003 |
0.003 |
0.005 |
0.003 |
0.005 |
0.022 |
0.004 |
0.009 |
0.043 |
< 0.003 |
0.003 |
0.019 |
< 0.003 |
< 0.003 |
0.065 |
< 0.003 |
< 0.003 |
< 0.003 |
< 0.003 |
< 0.003 |
< 0.003 |
< 0.003 |
< 0.003 |
0.003 |