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 |
2021.04.14 |
2021.04.14 |
2021.04.14 |
2021.05.19 |
2021.05.19 |
2021.05.19 |
2021.06.02 |
2021.06.02 |
2021.06.02 |
2021.07.14 |
2021.07.14 |
2021.07.14 |
2021.08.25 |
2021.08.25 |
2021.08.25 |
2021.09.08 |
2021.09.08 |
2021.09.08 |
2021.10.13 |
2021.10.13 |
2021.10.13 |
2021.11.17 |
2021.11.17 |
2021.11.17 |
2021.12.08 |
2021.12.08 |
2021.12.08 |
2022.01.05 |
2022.01.05 |
2022.01.05 |
2022.02.02 |
2022.02.02 |
2022.02.02 |
2022.03.02 |
2022.03.02 |
2022.03.02 |
採取時刻 |
0932 |
1004 |
1012 |
0925 |
0953 |
0959 |
0932 |
1004 |
1011 |
0926 |
0956 |
1008 |
0936 |
1002 |
1010 |
0940 |
1010 |
1015 |
0927 |
0952 |
0959 |
0952 |
1032 |
1040 |
0925 |
0953 |
1002 |
0943 |
1006 |
1017 |
0934 |
0947 |
0956 |
0940 |
1007 |
1034 |
天候 |
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 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
気温 (℃) |
11.5 |
13.0 |
13.5 |
17.8 |
18.1 |
18.3 |
19.5 |
20.5 |
20.5 |
27.7 |
28.5 |
28.9 |
22.7 |
22.8 |
22.9 |
19.0 |
19.9 |
19.9 |
17.9 |
18.0 |
18.1 |
9.9 |
11.0 |
11.0 |
7.5 |
7.3 |
7.2 |
-4.0 |
-3.8 |
-3.7 |
-0.8 |
-0.5 |
-0.2 |
2.2 |
2.3 |
2.3 |
水温 (℃) |
11.5 |
5.2 |
4.9 |
18.0 |
11.0 |
5.1 |
19.0 |
7.7 |
6.0 |
22.7 |
18.4 |
6.6 |
22.2 |
19.8 |
6.9 |
19.8 |
18.9 |
6.9 |
17.7 |
17.2 |
6.9 |
13.0 |
12.1 |
6.9 |
10.0 |
8.8 |
6.8 |
4.8 |
5.0 |
5.0 |
2.3 |
7.2 |
8.9 |
2.0 |
3.9 |
3.6 |
流量 (m3/s) |
24.01 |
24.01 |
24.01 |
14.26 |
14.26 |
14.26 |
24.92 |
24.92 |
24.92 |
22.10 |
22.10 |
22.10 |
80.92 |
80.92 |
80.92 |
15.99 |
15.99 |
15.99 |
15.83 |
15.83 |
15.83 |
20.07 |
20.07 |
20.07 |
30.16 |
30.16 |
30.16 |
10.01 |
10.01 |
10.01 |
11.97 |
11.97 |
11.97 |
16.47 |
16.47 |
16.47 |
採取水深 (m) |
0.50 |
25.80 |
50.60 |
0.50 |
24.10 |
47.20 |
0.50 |
24.20 |
47.40 |
0.50 |
22.90 |
44.80 |
0.50 |
23.10 |
45.20 |
0.50 |
23.20 |
45.40 |
0.50 |
24.80 |
48.60 |
0.50 |
30.00 |
59.00 |
0.50 |
29.90 |
58.80 |
0.50 |
21.60 |
42.20 |
0.50 |
22.70 |
44.40 |
0.50 |
19.00 |
37.00 |
全水深 (m) |
51.60 |
51.60 |
51.60 |
48.20 |
48.20 |
48.20 |
48.40 |
48.40 |
48.40 |
45.80 |
45.80 |
45.80 |
46.20 |
46.20 |
46.20 |
46.40 |
46.40 |
46.40 |
49.60 |
49.60 |
49.60 |
60.00 |
60.00 |
60.00 |
59.80 |
59.80 |
59.80 |
43.20 |
43.20 |
43.20 |
45.40 |
45.40 |
45.40 |
38.00 |
38.00 |
38.00 |
透明度 (m) |
3.3 |
|
|
4.9 |
|
|
3.7 |
|
|
4.1 |
|
|
2.8 |
|
|
2.9 |
|
|
4.7 |
|
|
4.9 |
|
|
5.0 |
|
|
7.6 |
|
|
6.3 |
|
|
3.5 |
|
|
前日までの降雨状況 |
前日雨 |
前日雨 |
前日雨 |
前々日雨 |
前々日雨 |
前々日雨 |
6日前雨 |
6日前雨 |
6日前雨 |
前日雨 |
前日雨 |
前日雨 |
前日雨 |
前日雨 |
前日雨 |
4日前雨 |
4日前雨 |
4日前雨 |
前々日雨 |
前々日雨 |
前々日雨 |
5日前雨 |
5日前雨 |
5日前雨 |
4日前雨 |
4日前雨 |
4日前雨 |
3日前雪 |
3日前雪 |
3日前雪 |
なし |
なし |
なし |
前日雨 |
前日雨 |
前日雨 |
外観 |
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 |
微茶濁 |
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 |
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 |
下水臭 |
なし |
なし |
なし |
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 |
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 |
7.0 |
7.6 |
7.2 |
6.9 |
8.0 |
7.2 |
6.9 |
7.7 |
7.2 |
6.8 |
7.8 |
7.4 |
7.1 |
7.3 |
7.2 |
6.9 |
7.4 |
7.3 |
7.0 |
7.7 |
7.4 |
7.1 |
7.4 |
7.3 |
7.1 |
7.4 |
7.4 |
7.4 |
7.4 |
7.4 |
7.3 |
7.6 |
7.3 |
7.1 |
DO (mg/l) |
11 |
11 |
7.2 |
9.9 |
10 |
4.7 |
10 |
9.7 |
2.5 |
9.1 |
7.5 |
1.3 |
9.0 |
7.4 |
2.4 |
9.0 |
7.6 |
3.0 |
9.0 |
8.5 |
3.0 |
10 |
8.9 |
1.3 |
9.8 |
9.9 |
0.7 |
11 |
11 |
11 |
12 |
11 |
10 |
13 |
11 |
8.7 |
BOD (mg/l) |
1.6 |
0.9 |
3.3 |
1.0 |
0.8 |
1.2 |
1.5 |
< 0.5 |
1.1 |
0.6 |
0.5 |
1.0 |
0.9 |
< 0.5 |
0.7 |
1.1 |
0.7 |
0.5 |
0.7 |
< 0.5 |
0.5 |
0.8 |
0.7 |
0.7 |
0.5 |
< 0.5 |
0.8 |
0.6 |
0.5 |
0.5 |
< 0.5 |
< 0.5 |
0.5 |
1.4 |
< 0.5 |
0.5 |
COD (mg/l) |
2.3 |
1.9 |
3.8 |
2.4 |
1.7 |
2.5 |
2.7 |
1.6 |
2.3 |
2.4 |
2.1 |
4.6 |
3.1 |
2.9 |
3.2 |
2.8 |
2.2 |
2.9 |
2.5 |
2.3 |
3.2 |
2.3 |
2.0 |
5.8 |
2.3 |
3.1 |
8.2 |
1.9 |
1.9 |
2.2 |
1.6 |
1.8 |
2.1 |
1.8 |
1.6 |
1.7 |
SS (mg/l) |
1 |
1 |
5 |
1 |
< 1 |
2 |
1 |
< 1 |
1 |
< 1 |
1 |
5 |
2 |
2 |
4 |
3 |
2 |
4 |
1 |
1 |
4 |
2 |
1 |
5 |
< 1 |
2 |
6 |
< 1 |
< 1 |
3 |
< 1 |
< 1 |
1 |
1 |
< 1 |
< 1 |
大腸菌群数 (MPN/100ml) |
17 |
7.8 |
46 |
280 |
23 |
23 |
79 |
23 |
13 |
49 |
490 |
490 |
1300 |
1700 |
1100 |
4900 |
1300 |
240 |
1100 |
790 |
330 |
130 |
330 |
330 |
79 |
490 |
330 |
49 |
49 |
240 |
23 |
33 |
49 |
7.8 |
4.5 |
23 |
全窒素 (mg/l) |
0.47 |
0.66 |
1.3 |
0.43 |
0.58 |
1.0 |
0.45 |
0.65 |
1.1 |
0.45 |
0.57 |
1.8 |
0.50 |
0.62 |
1.6 |
0.54 |
0.56 |
1.6 |
0.53 |
0.54 |
1.6 |
0.36 |
0.59 |
3.5 |
0.57 |
0.67 |
5.2 |
0.52 |
0.51 |
0.57 |
0.54 |
0.53 |
0.58 |
0.49 |
0.51 |
0.60 |
全燐 (mg/l) |
0.014 |
0.013 |
0.049 |
0.011 |
0.009 |
0.014 |
0.028 |
0.010 |
0.016 |
0.009 |
0.015 |
0.026 |
0.016 |
0.021 |
0.028 |
0.019 |
0.023 |
0.028 |
0.017 |
0.016 |
0.035 |
0.006 |
0.010 |
0.096 |
0.010 |
0.029 |
0.064 |
0.010 |
0.010 |
0.014 |
0.010 |
0.010 |
0.013 |
0.010 |
0.009 |
0.010 |
全亜鉛 (mg/l) |
0.001 |
0.001 |
0.003 |
0.001 |
0.003 |
0.001 |
< 0.001 |
< 0.001 |
0.001 |
0.003 |
0.001 |
0.001 |
0.003 |
0.007 |
0.001 |
0.001 |
< 0.001 |
< 0.001 |
0.003 |
0.004 |
0.003 |
0.001 |
0.006 |
0.002 |
< 0.001 |
0.001 |
0.002 |
0.001 |
0.001 |
0.001 |
0.001 |
< 0.001 |
< 0.001 |
0.001 |
< 0.001 |
< 0.001 |
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 |
0.008 |
0.003 |
< 0.001 |
< 0.001 |
0.004 |
< 0.001 |
0.013 |
0.004 |
0.005 |
0.007 |
0.002 |
0.001 |
0.005 |
0.003 |
0.005 |
0.014 |
0.004 |
0.002 |
< 0.001 |
< 0.001 |
0.005 |
< 0.001 |
0.007 |
0.005 |
< 0.001 |
0.002 |
0.002 |
0.002 |
0.001 |
0.002 |
< 0.001 |
0.002 |
< 0.001 |
0.001 |
ふっ素 (mg/l) |
|
|
|
|
|
|
|
|
|
0.06 |
|
|
|
|
|
|
|
|
|
|
|
0.05 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
アンモニア性窒素 (mg/l) |
< 0.05 |
< 0.05 |
0.40 |
< 0.05 |
< 0.05 |
0.33 |
< 0.05 |
< 0.05 |
0.40 |
< 0.05 |
< 0.05 |
1.2 |
< 0.05 |
< 0.05 |
1.2 |
< 0.05 |
< 0.05 |
1.1 |
< 0.05 |
< 0.05 |
1.0 |
< 0.05 |
< 0.05 |
2.1 |
< 0.05 |
< 0.05 |
2.9 |
< 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) |
4 |
< 2 |
< 2 |
4 |
< 2 |
< 2 |
3 |
< 2 |
< 2 |
2 |
< 2 |
< 2 |
10 |
2 |
< 2 |
6 |
< 2 |
< 2 |
4 |
2 |
< 2 |
3 |
< 2 |
< 2 |
2 |
< 2 |
< 2 |
< 2 |
< 2 |
< 2 |
< 2 |
< 2 |
< 2 |
2 |
< 2 |
< 2 |
透視度 |
> 100 |
> 100 |
45 |
> 100 |
> 100 |
78 |
> 100 |
> 100 |
66 |
> 100 |
> 100 |
68 |
> 100 |
> 100 |
65 |
> 100 |
> 100 |
63 |
> 100 |
> 100 |
45 |
> 100 |
> 100 |
76 |
> 100 |
> 100 |
73 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
塩化物イオン (mg/l) |
|
|
|
4.0 |
4.9 |
5.3 |
|
|
|
|
|
|
3.8 |
3.8 |
5.3 |
|
|
|
|
|
|
3.9 |
4.0 |
5.3 |
|
|
|
|
|
|
4.5 |
4.3 |
4.4 |
|
|
|
ほう素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
|
|
|
|
|
|
0.31 |
|
|
|
|
|
|
|
|
|
|
|
0.27 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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 |
4 |
< 2 |
< 2 |
2 |
< 2 |
2 |
8 |
12 |
84 |
69 |
18 |
27 |
70 |
33 |
10 |
38 |
38 |
24 |
55 |
61 |
< 2 |
55 |
16 |
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 |
|
|
底層溶存酸素量 (mg/L) |
|
|
7.2 |
|
|
4.7 |
|
|
2.5 |
|
|
1.3 |
|
|
2.4 |
|
|
3.0 |
|
|
3.0 |
|
|
1.3 |
|
|
0.7 |
|
|
11 |
|
|
10 |
|
|
8.7 |
オルトリン酸態リン (mg/l) |
< 0.003 |
0.006 |
0.014 |
< 0.003 |
< 0.003 |
< 0.003 |
< 0.003 |
< 0.003 |
0.003 |
< 0.003 |
0.007 |
0.004 |
< 0.003 |
0.008 |
0.006 |
0.003 |
0.010 |
0.008 |
0.003 |
0.003 |
0.013 |
< 0.003 |
< 0.003 |
0.069 |
< 0.003 |
0.013 |
0.019 |
0.005 |
0.005 |
0.006 |
0.003 |
0.004 |
0.006 |
< 0.003 |
0.005 |
0.006 |