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 |
1996.04.22 |
1996.04.22 |
1996.04.22 |
1996.05.15 |
1996.05.15 |
1996.05.15 |
1996.06.24 |
1996.06.24 |
1996.06.24 |
1996.07.10 |
1996.07.10 |
1996.07.10 |
1996.08.21 |
1996.08.21 |
1996.08.21 |
1996.09.11 |
1996.09.11 |
1996.09.11 |
1996.10.16 |
1996.10.16 |
1996.10.16 |
1996.11.12 |
1996.11.12 |
1996.11.12 |
1996.12.11 |
1996.12.11 |
1996.12.11 |
1997.01.22 |
1997.01.22 |
1997.01.22 |
1997.02.12 |
1997.02.12 |
1997.02.12 |
1997.03.12 |
1997.03.12 |
1997.03.12 |
採取時刻 |
0940 |
1015 |
1040 |
0940 |
1015 |
1040 |
1030 |
1110 |
1140 |
1020 |
1040 |
1100 |
0940 |
1010 |
1040 |
1020 |
1050 |
1120 |
0930 |
1000 |
1030 |
0950 |
1050 |
1120 |
0930 |
1010 |
1030 |
0920 |
1015 |
1100 |
0940 |
1030 |
1100 |
0900 |
0945 |
1000 |
天候 |
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 |
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 |
晴れ |
晴れ |
晴れ |
気温 (℃) |
8.6 |
8.6 |
8.6 |
13.0 |
13.0 |
13.0 |
17.8 |
17.8 |
17.8 |
24.0 |
24.0 |
24.0 |
26.0 |
26.0 |
26.0 |
24.5 |
24.5 |
24.5 |
13.0 |
13.0 |
13.0 |
12.5 |
12.5 |
12.5 |
5.3 |
5.3 |
5.3 |
-2.5 |
-2.5 |
-2.5 |
1.0 |
1.0 |
1.0 |
1.8 |
1.8 |
1.8 |
水温 (℃) |
7.8 |
7.0 |
6.8 |
11.1 |
9.5 |
9.1 |
16.9 |
15.5 |
14.1 |
16.6 |
15.7 |
14.2 |
25.2 |
22.7 |
16.9 |
18.8 |
15.9 |
15.1 |
12.9 |
11.6 |
10.9 |
8.7 |
7.6 |
7.4 |
4.5 |
4.2 |
4.1 |
2.0 |
1.5 |
2.0 |
2.0 |
1.0 |
2.8 |
2.5 |
3.1 |
3.3 |
流量 (m3/s) |
44.19 |
44.19 |
44.19 |
43.53 |
43.53 |
43.53 |
46.85 |
46.85 |
46.85 |
44.95 |
44.95 |
44.95 |
14.79 |
14.79 |
14.79 |
17.51 |
17.51 |
17.51 |
10.92 |
10.92 |
10.92 |
15.18 |
15.18 |
15.18 |
14.97 |
14.97 |
14.97 |
14.20 |
14.20 |
14.20 |
16.25 |
16.25 |
16.25 |
23.28 |
23.28 |
23.28 |
採取水深 (m) |
0.5 |
10.7 |
20.3 |
0.5 |
12.4 |
23.7 |
0.5 |
9.3 |
17.5 |
0.5 |
6.7 |
12.4 |
0.5 |
7.1 |
13.2 |
0.5 |
7.0 |
13.0 |
0.5 |
7.8 |
14.5 |
0.5 |
10.1 |
19.0 |
0.5 |
11.5 |
22.0 |
0.5 |
12.2 |
23.3 |
0.5 |
12.1 |
23.2 |
0.5 |
12.3 |
23.5 |
全水深 (m) |
21.30 |
21.30 |
21.30 |
24.70 |
24.70 |
24.70 |
18.50 |
18.50 |
18.50 |
13.40 |
13.40 |
13.40 |
14.20 |
14.20 |
14.20 |
14.00 |
14.00 |
14.00 |
15.50 |
15.50 |
15.50 |
20.10 |
20.10 |
20.10 |
23.00 |
23.00 |
23.00 |
24.30 |
24.30 |
24.30 |
24.20 |
24.20 |
24.20 |
24.50 |
24.50 |
24.50 |
透明度 (m) |
1.80 |
1.80 |
1.80 |
1.50 |
1.50 |
1.50 |
1.20 |
1.20 |
1.20 |
1.60 |
1.60 |
1.60 |
|
|
|
1.40 |
1.40 |
1.40 |
2.20 |
2.20 |
2.20 |
3.00 |
3.00 |
3.00 |
3.70 |
3.70 |
3.70 |
3.40 |
3.40 |
3.40 |
2.20 |
2.20 |
2.20 |
2.10 |
2.10 |
2.10 |
外観 |
無色澄明 |
無色澄明 |
無色澄明 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
微白濁 |
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 |
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 |
7.4 |
7.3 |
7.3 |
7.3 |
7.3 |
7.2 |
7.3 |
7.3 |
7.2 |
7.5 |
7.6 |
7.3 |
8.5 |
7.6 |
7.2 |
8.3 |
7.7 |
7.5 |
7.8 |
7.8 |
7.8 |
7.7 |
7.4 |
7.4 |
7.6 |
7.5 |
7.5 |
7.5 |
7.4 |
7.5 |
7.6 |
7.4 |
7.3 |
7.7 |
7.3 |
7.3 |
DO (mg/l) |
10.0 |
10.0 |
10.0 |
10.0 |
10.0 |
9.9 |
9.3 |
8.5 |
8.7 |
8.4 |
8.1 |
8.4 |
9.8 |
7.5 |
5.5 |
11.0 |
8.9 |
7.1 |
12.0 |
10.0 |
10.0 |
10.0 |
10.0 |
10.0 |
12.0 |
11.0 |
11.0 |
12.0 |
11.0 |
11.0 |
13.0 |
12.0 |
11.0 |
13.0 |
10.0 |
11.0 |
BOD (mg/l) |
1.4 |
0.6 |
0.5 |
0.7 |
0.5 |
0.5 |
1.0 |
< 0.5 |
< 0.5 |
0.6 |
0.5 |
0.5 |
1.4 |
0.5 |
0.6 |
1.6 |
0.8 |
1.1 |
1.9 |
0.7 |
0.5 |
1.2 |
0.9 |
0.7 |
1.4 |
0.9 |
0.8 |
1.4 |
0.7 |
0.7 |
1.3 |
< 0.5 |
0.8 |
1.3 |
0.8 |
1.0 |
COD (mg/l) |
1.9 |
1.6 |
1.8 |
1.4 |
1.4 |
1.5 |
2.0 |
1.9 |
1.8 |
1.9 |
1.8 |
1.8 |
2.4 |
1.9 |
1.4 |
2.8 |
1.8 |
2.0 |
1.9 |
1.3 |
1.2 |
1.5 |
1.8 |
1.6 |
1.6 |
1.4 |
1.1 |
1.5 |
1.4 |
1.2 |
2.3 |
1.2 |
1.3 |
2.0 |
2.0 |
2.1 |
SS (mg/l) |
2 |
3 |
3 |
3 |
4 |
4 |
3 |
6 |
5 |
3 |
4 |
7 |
2 |
4 |
2 |
4 |
4 |
5 |
2 |
3 |
2 |
1 |
3 |
3 |
2 |
2 |
2 |
1 |
1 |
1 |
2 |
1 |
1 |
2 |
3 |
3 |
大腸菌群数 (MPN/100ml) |
1.3E+02 |
2.4E+02 |
7.9E+02 |
3.3E+01 |
4.9E+02 |
4.9E+02 |
2.3E+02 |
4.9E+02 |
1.3E+03 |
4.9E+02 |
3.3E+02 |
2.4E+03 |
7.0E+01 |
1.3E+03 |
3.3E+02 |
3.3E+02 |
7.9E+03 |
1.7E+04 |
7.9E+01 |
4.9E+02 |
4.9E+02 |
2.4E+02 |
4.9E+02 |
4.9E+02 |
3.3E+01 |
2.4E+02 |
4.9E+01 |
1.3E+01 |
1.3E+01 |
2.3E+01 |
1.1E+01 |
1.3E+01 |
7.9E+01 |
4.5E+00 |
1.3E+02 |
7.9E+02 |
全窒素 (mg/l) |
|
|
|
1.00 |
1.20 |
1.30 |
|
|
|
1.10 |
1.10 |
1.20 |
|
|
|
1.10 |
1.10 |
1.10 |
|
|
|
0.94 |
0.88 |
0.90 |
|
|
|
1.10 |
1.00 |
1.00 |
|
|
|
0.97 |
1.30 |
1.50 |
全燐 (mg/l) |
|
|
|
0.013 |
0.018 |
0.020 |
|
|
|
0.020 |
0.021 |
0.027 |
|
|
|
0.032 |
0.028 |
0.033 |
|
|
|
0.018 |
0.024 |
0.022 |
|
|
|
0.017 |
0.010 |
0.011 |
|
|
|
0.015 |
0.022 |
0.026 |
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) |
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
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) |
|
|
|
4.2 |
< 0.5 |
< 0.5 |
|
|
|
2.1 |
< 0.5 |
2.2 |
|
|
|
22.7 |
5.0 |
3.0 |
|
|
|
11.0 |
6.8 |
3.6 |
|
|
|
8.6 |
2.2 |
< 0.5 |
|
|
|
14.1 |
2.6 |
2.2 |
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) |
|
|
|
0.65 |
0.79 |
0.85 |
|
|
|
0.98 |
0.99 |
0.91 |
|
|
|
0.80 |
0.84 |
0.85 |
|
|
|
0.77 |
0.69 |
0.73 |
|
|
|
0.92 |
0.82 |
0.89 |
|
|
|
0.70 |
1.10 |
1.20 |