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 |
1997.04.30 |
1997.04.30 |
1997.04.30 |
1997.05.28 |
1997.05.28 |
1997.05.28 |
1997.06.11 |
1997.06.11 |
1997.06.11 |
1997.07.15 |
1997.07.15 |
1997.07.15 |
1997.08.06 |
1997.08.06 |
1997.08.06 |
1997.09.10 |
1997.09.10 |
1997.09.10 |
1997.10.15 |
1997.10.15 |
1997.10.15 |
1997.11.12 |
1997.11.12 |
1997.11.12 |
1997.12.10 |
1997.12.10 |
1997.12.10 |
1998.01.12 |
1998.01.12 |
1998.01.12 |
1998.02.18 |
1998.02.18 |
1998.02.18 |
1998.03.11 |
1998.03.11 |
1998.03.11 |
採取時刻 |
1015 |
1055 |
1122 |
1003 |
1044 |
1121 |
0951 |
1017 |
1029 |
1001 |
1038 |
1050 |
1002 |
1024 |
1042 |
1008 |
1038 |
1056 |
1001 |
1023 |
1038 |
1040 |
1113 |
1130 |
1030 |
1106 |
1125 |
1055 |
1130 |
1150 |
0930 |
1014 |
1032 |
0920 |
0952 |
1010 |
天候 |
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 |
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 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
気温 (℃) |
16.0 |
16.5 |
17.0 |
22.0 |
22.3 |
23.0 |
26.5 |
27.0 |
25.8 |
26.0 |
28.0 |
28.0 |
29.0 |
28.0 |
30.2 |
27.5 |
27.5 |
27.8 |
13.2 |
14.5 |
14.5 |
12.0 |
14.0 |
15.0 |
9.0 |
8.5 |
9.0 |
0.5 |
0.2 |
0.3 |
-0.5 |
-0.5 |
-0.5 |
2.0 |
2.0 |
2.0 |
水温 (℃) |
13.0 |
5.5 |
4.6 |
15.6 |
5.7 |
4.8 |
17.8 |
5.9 |
4.8 |
25.6 |
6.4 |
4.9 |
27.2 |
7.9 |
4.9 |
24.7 |
8.0 |
5.0 |
15.5 |
13.2 |
5.5 |
10.6 |
8.5 |
5.2 |
7.5 |
5.7 |
5.2 |
2.1 |
3.7 |
4.1 |
0.1 |
2.2 |
3.0 |
3.0 |
3.0 |
3.0 |
採取水深 (m) |
0.5 |
20.8 |
40.5 |
0.5 |
22.0 |
43.0 |
0.5 |
20.3 |
39.5 |
0.5 |
22.9 |
44.8 |
0.5 |
20.8 |
40.6 |
0.5 |
22.9 |
44.7 |
0.5 |
20.3 |
39.6 |
0.5 |
20.6 |
40.2 |
0.5 |
19.8 |
38.6 |
0.5 |
20.3 |
39.6 |
0.5 |
17.2 |
33.4 |
0.5 |
17.5 |
33.9 |
全水深 (m) |
41.5 |
|
|
44.0 |
|
|
40.5 |
|
|
45.8 |
|
|
41.6 |
|
|
45.7 |
|
|
40.6 |
|
|
41.2 |
|
|
39.6 |
|
|
40.6 |
|
|
34.4 |
|
|
34.9 |
|
|
透明度 (m) |
2.20 |
|
|
2.70 |
|
|
2.90 |
|
|
2.30 |
|
|
5.40 |
|
|
5.10 |
|
|
3.20 |
|
|
4.00 |
|
|
2.20 |
|
|
2.70 |
|
|
2.60 |
|
|
3.00 |
|
|
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 |
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 |
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 |
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 |
なし |
なし |
なし |
pH |
8.5 |
7.2 |
7.0 |
7.8 |
7.3 |
7.2 |
8.0 |
7.2 |
7.1 |
9.5 |
6.9 |
6.8 |
9.5 |
7.1 |
6.9 |
9.0 |
6.9 |
6.9 |
7.6 |
7.3 |
6.9 |
7.4 |
7.2 |
7.0 |
7.2 |
7.0 |
6.9 |
7.4 |
7.4 |
7.2 |
7.4 |
7.3 |
7.1 |
7.3 |
7.2 |
7.2 |
DO (mg/l) |
11.6 |
9.6 |
6.5 |
11.1 |
8.6 |
6.4 |
9.9 |
8.3 |
6.2 |
9.6 |
7.2 |
2.1 |
8.2 |
6.5 |
4.9 |
9.3 |
5.8 |
3.0 |
9.0 |
6.8 |
2.5 |
9.4 |
6.3 |
0.8 |
10.1 |
6.8 |
4.6 |
12.3 |
11.0 |
10.6 |
13.1 |
11.4 |
9.2 |
10.9 |
9.5 |
9.3 |
BOD (mg/l) |
1.3 |
1.1 |
< 0.5 |
1.4 |
< 0.5 |
< 0.5 |
1.1 |
< 0.5 |
< 0.5 |
1.4 |
< 0.5 |
< 0.5 |
0.9 |
0.5 |
0.5 |
0.7 |
< 0.5 |
0.5 |
0.9 |
0.6 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.9 |
0.5 |
0.7 |
0.7 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.7 |
0.5 |
0.6 |
COD (mg/l) |
2.2 |
2.5 |
1.4 |
2.1 |
1.1 |
1.2 |
2.1 |
1.2 |
1.2 |
3.3 |
1.6 |
1.4 |
2.8 |
2.0 |
1.0 |
2.1 |
1.6 |
2.1 |
2.2 |
1.6 |
1.6 |
1.7 |
1.7 |
2.4 |
2.4 |
2.0 |
2.1 |
1.2 |
1.3 |
1.5 |
1.0 |
1.1 |
1.2 |
1.4 |
1.4 |
1.4 |
SS (mg/l) |
3 |
1 |
1 |
1 |
1 |
5 |
1 |
1 |
1 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
4 |
1 |
2 |
5 |
1 |
2 |
4 |
1 |
1 |
4 |
1 |
1 |
1 |
1 |
2 |
2 |
大腸菌群数 (MPN/100ml) |
< 1.8E+00 |
1.7E+01 |
2.0E+00 |
2.3E+01 |
4.9E+01 |
3.3E+01 |
1.3E+01 |
1.3E+01 |
1.3E+01 |
4.5E+00 |
1.3E+01 |
2.3E+01 |
4.5E+00 |
1.3E+01 |
1.3E+01 |
7.0E+02 |
1.3E+02 |
7.9E+03 |
4.9E+02 |
4.9E+02 |
7.9E+01 |
7.8E+00 |
7.8E+00 |
4.9E+01 |
1.3E+01 |
2.3E+01 |
3.3E+01 |
2.3E+01 |
4.5E+00 |
1.1E+01 |
4.5E+00 |
1.3E+01 |
< 1.8E+00 |
7.8E+00 |
7.8E+00 |
2.0E+00 |
全窒素 (mg/l) |
0.72 |
0.78 |
0.82 |
0.60 |
0.73 |
0.75 |
0.71 |
0.73 |
0.69 |
0.51 |
0.76 |
0.92 |
0.39 |
0.80 |
0.75 |
0.39 |
0.72 |
1.06 |
0.56 |
0.62 |
0.72 |
0.53 |
0.62 |
1.13 |
0.79 |
0.78 |
0.92 |
0.75 |
0.72 |
0.79 |
0.67 |
0.69 |
0.77 |
0.82 |
0.76 |
0.75 |
全燐 (mg/l) |
0.014 |
0.006 |
0.008 |
0.016 |
0.005 |
0.010 |
0.010 |
0.005 |
0.003 |
0.013 |
0.013 |
0.018 |
0.007 |
0.005 |
0.004 |
0.008 |
0.003 |
0.016 |
0.011 |
0.017 |
0.021 |
0.008 |
0.016 |
0.021 |
0.016 |
0.014 |
0.025 |
0.011 |
0.010 |
0.017 |
0.011 |
0.012 |
0.012 |
0.010 |
0.013 |
0.014 |
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) |
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
六価クロム (mg/l) |
|
|
|
< 0.04 |
|
|
|
|
|
< 0.04 |
|
|
|
|
|
< 0.04 |
|
|
|
|
|
< 0.04 |
|
|
|
|
|
< 0.04 |
|
|
|
|
|
< 0.04 |
|
|
砒素 (mg/l) |
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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 |
< 0.1 |
0.3 |
< 0.1 |
< 0.1 |
< 0.1 |
< 0.1 |
< 0.1 |
0.5 |
0.5 |
< 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) |
1.0E+01 |
< 1.0E+00 |
< 1.0E+00 |
5.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
4.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
1.4E+01 |
< 1.0E+00 |
< 1.0E+00 |
1.0E+01 |
2.0E+00 |
< 1.0E+00 |
5.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
4.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
2.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
< 1.0E+00 |
透視度 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
0.40 |
0.53 |
0.58 |
0.38 |
0.64 |
0.62 |
0.43 |
0.43 |
0.62 |
0.30 |
0.61 |
0.56 |
0.08 |
0.63 |
0.60 |
0.23 |
0.63 |
0.33 |
0.44 |
0.49 |
0.60 |
0.35 |
0.37 |
0.35 |
0.57 |
0.47 |
0.44 |
0.56 |
0.65 |
0.61 |
0.53 |
0.58 |
0.63 |
0.65 |
0.07 |
0.61 |