測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
50901 |
四十四田ダム貯水池 |
L‐22(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 |
1998.01.07 |
1998.01.07 |
1998.01.07 |
1998.02.18 |
1998.02.18 |
1998.02.18 |
1998.03.11 |
1998.03.11 |
1998.03.11 |
採取時刻 |
0920 |
1000 |
1030 |
0930 |
1000 |
1020 |
0920 |
0950 |
1010 |
0950 |
1020 |
1050 |
0930 |
0950 |
1005 |
0920 |
0950 |
1020 |
0930 |
0955 |
1020 |
0940 |
1020 |
1100 |
0940 |
1010 |
1030 |
0940 |
1010 |
1040 |
0920 |
0950 |
1020 |
0940 |
1020 |
1050 |
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 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
雪 |
雪 |
雪 |
雪 |
晴れ |
晴れ |
雪 |
晴れ |
晴れ |
気温 (℃) |
16.5 |
16.5 |
16.5 |
17.5 |
17.5 |
17.5 |
24.4 |
24.4 |
24.4 |
25.5 |
25.5 |
25.5 |
26.0 |
26.0 |
26.0 |
24.2 |
24.2 |
24.2 |
15.3 |
15.3 |
15.3 |
8.7 |
8.7 |
8.7 |
6.5 |
6.5 |
6.5 |
-3.7 |
-3.7 |
-3.7 |
-1.5 |
-1.5 |
-1.5 |
3.0 |
3.0 |
3.0 |
水温 (℃) |
12.6 |
10.5 |
7.9 |
14.3 |
12.1 |
10.1 |
16.5 |
14.1 |
10.8 |
22.9 |
20.5 |
17.0 |
23.1 |
21.4 |
17.1 |
21.7 |
19.1 |
17.7 |
13.1 |
11.7 |
11.1 |
9.8 |
9.1 |
8.6 |
6.8 |
6.3 |
5.7 |
3.1 |
3.5 |
3.6 |
1.5 |
2.6 |
2.9 |
4.7 |
4.4 |
4.3 |
流量 (m3/s) |
43.81 |
|
|
42.90 |
|
|
45.60 |
|
|
24.34 |
|
|
33.63 |
|
|
24.19 |
|
|
44.79 |
|
|
18.38 |
|
|
63.54 |
|
|
28.88 |
|
|
29.64 |
|
|
34.54 |
|
|
採取水深 (m) |
0.5 |
11.0 |
21.0 |
0.5 |
12.4 |
23.8 |
0.5 |
10.2 |
20.3 |
0.5 |
7.0 |
13.0 |
0.5 |
7.0 |
12.9 |
0.5 |
7.2 |
13.4 |
0.5 |
9.5 |
18.0 |
0.5 |
11.9 |
22.8 |
0.5 |
12.6 |
24.1 |
0.5 |
11.8 |
22.5 |
0.5 |
12.3 |
23.6 |
0.5 |
11.7 |
22.4 |
全水深 (m) |
22.0 |
|
|
24.8 |
|
|
21.3 |
|
|
14.0 |
|
|
13.9 |
|
|
14.4 |
|
|
19.0 |
|
|
23.8 |
|
|
25.1 |
|
|
23.5 |
|
|
24.6 |
|
|
23.4 |
|
|
透明度 (m) |
3.00 |
|
|
3.50 |
|
|
2.20 |
|
|
1.50 |
|
|
|
|
|
1.60 |
|
|
2.70 |
|
|
3.50 |
|
|
1.10 |
|
|
3.00 |
|
|
3.50 |
|
|
2.40 |
|
|
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 |
茶褐色 |
茶褐色 |
茶褐色 |
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 |
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 |
7.5 |
7.5 |
7.3 |
7.4 |
7.4 |
7.3 |
8.2 |
7.5 |
7.3 |
7.7 |
7.5 |
7.2 |
7.4 |
7.3 |
7.2 |
7.8 |
7.6 |
7.4 |
7.8 |
7.6 |
7.5 |
7.5 |
7.3 |
7.4 |
7.3 |
7.3 |
7.3 |
7.5 |
7.5 |
7.5 |
7.5 |
7.4 |
7.4 |
7.5 |
7.5 |
7.5 |
DO (mg/l) |
10.5 |
11.1 |
10.7 |
10.1 |
9.9 |
9.6 |
11.3 |
9.9 |
9.6 |
8.9 |
8.1 |
7.7 |
7.2 |
7.4 |
5.5 |
9.5 |
8.8 |
8.3 |
10.8 |
10.1 |
10.6 |
10.6 |
10.2 |
10.6 |
11.1 |
11.5 |
11.5 |
13.2 |
12.7 |
12.5 |
13.9 |
12.7 |
12.4 |
12.2 |
12.2 |
11.9 |
BOD (mg/l) |
1.1 |
0.6 |
0.9 |
1.1 |
0.7 |
0.5 |
1.1 |
0.5 |
0.5 |
1.3 |
0.7 |
< 0.5 |
1.4 |
1.2 |
1.0 |
1.2 |
0.6 |
< 0.5 |
1.2 |
0.6 |
0.5 |
0.7 |
< 0.5 |
0.5 |
0.7 |
0.8 |
0.5 |
0.9 |
0.6 |
0.7 |
1.0 |
1.5 |
0.7 |
1.6 |
1.1 |
0.7 |
COD (mg/l) |
1.5 |
1.3 |
1.2 |
2.1 |
1.6 |
1.7 |
1.9 |
1.4 |
1.6 |
2.0 |
1.7 |
1.7 |
3.9 |
3.6 |
4.2 |
2.4 |
1.9 |
2.1 |
1.9 |
1.4 |
1.5 |
1.6 |
1.5 |
1.5 |
2.0 |
1.4 |
1.1 |
1.1 |
0.8 |
0.7 |
1.2 |
1.0 |
1.0 |
1.8 |
1.6 |
1.7 |
SS (mg/l) |
1 |
1 |
1 |
1 |
3 |
3 |
1 |
3 |
4 |
4 |
5 |
4 |
10 |
14 |
17 |
3 |
3 |
4 |
1 |
2 |
2 |
1 |
1 |
2 |
3 |
3 |
3 |
1 |
1 |
1 |
1 |
1 |
2 |
1 |
2 |
2 |
大腸菌群数 (MPN/100ml) |
1.3E+01 |
3.3E+01 |
1.1E+02 |
3.3E+03 |
1.3E+03 |
1.3E+01 |
7.8E+00 |
3.3E+02 |
3.3E+02 |
4.9E+02 |
3.3E+03 |
3.3E+02 |
2.4E+03 |
1.7E+03 |
4.9E+03 |
7.9E+03 |
3.3E+03 |
3.3E+03 |
2.4E+02 |
3.3E+02 |
4.9E+02 |
3.3E+01 |
4.9E+01 |
1.3E+02 |
4.9E+02 |
4.9E+02 |
4.9E+02 |
7.9E+01 |
7.9E+01 |
7.9E+01 |
< 1.8E+00 |
1.3E+02 |
3.3E+01 |
3.3E+01 |
7.9E+01 |
1.4E+02 |
全窒素 (mg/l) |
|
|
|
1.14 |
1.22 |
1.29 |
|
|
|
1.02 |
1.00 |
1.00 |
|
|
|
1.11 |
1.12 |
1.32 |
|
|
|
0.82 |
0.81 |
0.82 |
|
|
|
1.25 |
1.22 |
1.33 |
|
|
|
1.29 |
1.62 |
1.53 |
全燐 (mg/l) |
|
|
|
0.012 |
0.017 |
0.021 |
|
|
|
0.025 |
0.024 |
0.018 |
|
|
|
0.024 |
0.022 |
0.024 |
|
|
|
0.008 |
0.010 |
0.012 |
|
|
|
0.011 |
0.009 |
0.008 |
|
|
|
0.015 |
0.021 |
0.019 |
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 |
< 0.1 |
クロロフィル-a (ug/l) |
|
|
|
6.0E+00 |
2.0E+00 |
< 1.0E+00 |
|
|
|
1.2E+01 |
3.0E+00 |
< 1.0E+00 |
|
|
|
1.2E+01 |
4.0E+00 |
< 1.0E+00 |
|
|
|
6.0E+00 |
3.0E+00 |
4.0E+00 |
|
|
|
2.0E+00 |
2.0E+00 |
< 1.0E+00 |
|
|
|
4.0E+00 |
3.0E+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 |
26.0 |
> 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) |
|
|
|
0.96 |
1.07 |
1.05 |
|
|
|
0.79 |
0.79 |
0.78 |
|
|
|
0.95 |
1.03 |
1.24 |
|
|
|
0.75 |
0.74 |
0.76 |
|
|
|
1.04 |
1.13 |
1.12 |
|
|
|
1.01 |
1.44 |
1.31 |