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 |
1998.04.22 |
1998.04.22 |
1998.04.22 |
1998.05.13 |
1998.05.13 |
1998.05.13 |
1998.06.10 |
1998.06.10 |
1998.06.10 |
1998.07.15 |
1998.07.15 |
1998.07.15 |
1998.08.24 |
1998.08.24 |
1998.08.24 |
1998.09.21 |
1998.09.21 |
1998.09.21 |
1998.10.14 |
1998.10.14 |
1998.10.14 |
1998.11.11 |
1998.11.11 |
1998.11.11 |
1998.12.09 |
1998.12.09 |
1998.12.09 |
1999.01.06 |
1999.01.06 |
1999.01.06 |
1999.02.17 |
1999.02.17 |
1999.02.17 |
1999.03.10 |
1999.03.10 |
1999.03.10 |
採取時刻 |
0920 |
0945 |
1000 |
1000 |
1030 |
1100 |
0910 |
0940 |
1010 |
0930 |
0950 |
1010 |
0950 |
1010 |
1030 |
0935 |
0955 |
1025 |
0930 |
1000 |
1020 |
0930 |
1000 |
1030 |
0900 |
0935 |
1005 |
0950 |
1020 |
1050 |
0920 |
0950 |
1020 |
0920 |
0950 |
1020 |
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 |
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 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
気温 (℃) |
21.0 |
21.0 |
21.0 |
15.0 |
15.0 |
15.0 |
20.1 |
20.1 |
20.1 |
23.5 |
23.5 |
23.5 |
26.8 |
26.8 |
26.8 |
22.0 |
22.0 |
22.0 |
15.8 |
15.8 |
15.8 |
7.0 |
7.0 |
7.0 |
3.1 |
3.1 |
3.1 |
4.0 |
4.0 |
4.0 |
1.1 |
1.1 |
1.1 |
3.0 |
3.0 |
3.0 |
水温 (℃) |
12.9 |
10.5 |
8.6 |
15.0 |
12.9 |
9.2 |
18.2 |
14.4 |
9.1 |
20.3 |
19.0 |
17.5 |
22.0 |
20.8 |
19.4 |
19.0 |
17.9 |
17.5 |
15.0 |
13.9 |
13.2 |
9.8 |
9.8 |
8.8 |
3.7 |
3.8 |
4.0 |
2.3 |
3.0 |
3.1 |
1.6 |
2.3 |
2.9 |
3.0 |
4.3 |
4.6 |
採取水深 (m) |
0.5 |
12.4 |
23.8 |
0.5 |
12.1 |
23.1 |
0.5 |
10.1 |
20.4 |
0.5 |
7.2 |
13.4 |
0.5 |
7.3 |
13.6 |
0.5 |
7.3 |
13.6 |
0.5 |
12.5 |
24.0 |
0.5 |
12.4 |
23.8 |
0.5 |
12.4 |
23.8 |
0.5 |
11.7 |
22.3 |
0.5 |
11.7 |
22.3 |
0.5 |
11.8 |
22.5 |
全水深 (m) |
24.8 |
|
|
24.1 |
|
|
21.4 |
|
|
14.4 |
|
|
14.6 |
|
|
14.6 |
|
|
25.0 |
|
|
24.8 |
|
|
24.8 |
|
|
23.3 |
|
|
23.3 |
|
|
23.5 |
|
|
透明度 (m) |
|
|
|
3.50 |
|
|
3.20 |
|
|
2.00 |
|
|
1.60 |
|
|
2.00 |
|
|
1.40 |
|
|
3.10 |
|
|
2.50 |
|
|
3.90 |
|
|
3.90 |
|
|
2.90 |
|
|
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 |
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 |
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 |
7.3 |
7.2 |
7.1 |
7.5 |
7.0 |
6.9 |
7.5 |
7.3 |
7.0 |
7.7 |
7.6 |
7.4 |
8.0 |
7.5 |
7.3 |
7.5 |
7.5 |
7.5 |
7.8 |
7.3 |
7.3 |
7.4 |
7.4 |
7.4 |
7.4 |
7.4 |
7.4 |
7.4 |
7.4 |
7.5 |
7.4 |
7.4 |
7.4 |
7.5 |
7.4 |
7.4 |
DO (mg/l) |
10.8 |
11.4 |
10.4 |
10.7 |
9.5 |
9.5 |
9.5 |
8.3 |
8.5 |
9.6 |
9.3 |
7.9 |
10.2 |
8.9 |
8.0 |
9.7 |
9.0 |
9.0 |
10.6 |
9.2 |
9.4 |
10.9 |
10.7 |
10.9 |
12.5 |
12.3 |
12.3 |
13.3 |
12.8 |
13.0 |
13.8 |
13.0 |
12.6 |
13.6 |
12.5 |
12.0 |
BOD (mg/l) |
0.7 |
0.6 |
0.5 |
0.9 |
< 0.5 |
< 0.5 |
1.3 |
1.1 |
0.5 |
0.9 |
< 0.5 |
< 0.5 |
1.5 |
0.7 |
0.6 |
0.9 |
0.5 |
< 0.5 |
1.4 |
< 0.5 |
< 0.5 |
0.5 |
0.5 |
< 0.5 |
0.6 |
0.5 |
< 0.5 |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
COD (mg/l) |
1.6 |
1.6 |
1.3 |
2.0 |
1.1 |
1.3 |
1.3 |
0.9 |
0.8 |
1.1 |
0.9 |
1.3 |
1.5 |
1.1 |
1.3 |
1.8 |
1.5 |
1.4 |
2.8 |
1.7 |
1.4 |
0.9 |
0.8 |
0.6 |
0.7 |
0.7 |
0.7 |
1.2 |
1.0 |
0.9 |
1.6 |
1.0 |
1.0 |
1.5 |
1.4 |
1.8 |
SS (mg/l) |
2 |
2 |
3 |
1 |
1 |
3 |
1 |
1 |
1 |
2 |
3 |
6 |
3 |
3 |
3 |
2 |
3 |
3 |
3 |
4 |
3 |
1 |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
< 1 |
1 |
1 |
1 |
3 |
5 |
大腸菌群数 (MPN/100ml) |
2.3E+01 |
1.1E+02 |
3.3E+01 |
2.3E+01 |
1.1E+02 |
4.9E+01 |
2.3E+01 |
7.9E+02 |
1.7E+02 |
4.9E+02 |
1.7E+03 |
7.9E+02 |
7.9E+03 |
1.3E+04 |
3.3E+03 |
1.3E+04 |
1.7E+04 |
7.9E+03 |
2.4E+03 |
3.3E+03 |
4.9E+03 |
3.3E+02 |
4.9E+02 |
7.9E+02 |
3.3E+02 |
7.9E+01 |
2.4E+02 |
4.5E+01 |
7.9E+01 |
7.0E+01 |
4.9E+01 |
1.3E+02 |
3.3E+02 |
4.9E+01 |
4.9E+02 |
1.7E+03 |
全窒素 (mg/l) |
|
|
|
0.99 |
1.08 |
0.80 |
|
|
|
1.20 |
1.14 |
1.21 |
|
|
|
1.24 |
1.27 |
1.25 |
|
|
|
1.10 |
1.09 |
1.07 |
|
|
|
1.28 |
1.31 |
1.35 |
|
|
|
1.22 |
1.42 |
1.58 |
全燐 (mg/l) |
|
|
|
0.009 |
0.008 |
0.009 |
|
|
|
0.020 |
0.018 |
0.028 |
|
|
|
0.007 |
0.006 |
0.009 |
|
|
|
0.012 |
0.010 |
0.010 |
|
|
|
0.007 |
0.007 |
0.009 |
|
|
|
0.011 |
0.020 |
0.027 |
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 |
|
|
|
|
|
0.006 |
|
|
六価クロム (mg/l) |
|
|
|
< 0.040 |
|
|
|
|
|
< 0.040 |
|
|
|
|
|
< 0.040 |
|
|
|
|
|
< 0.040 |
|
|
|
|
|
< 0.040 |
|
|
|
|
|
< 0.040 |
|
|
砒素 (mg/l) |
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
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 |
クロロフィル-a (ug/l) |
|
|
|
3.5E+00 |
3.6E+00 |
< 2.0E+00 |
|
|
|
3.0E+00 |
< 2.0E+00 |
< 2.0E+00 |
|
|
|
< 2.0E+00 |
< 2.0E+00 |
< 2.0E+00 |
|
|
|
2.2E+00 |
< 2.0E+00 |
< 2.0E+00 |
|
|
|
< 2.0E+00 |
< 2.0E+00 |
< 2.0E+00 |
|
|
|
3.5E+00 |
< 2.0E+00 |
< 2.0E+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) |
|
|
|
0.60 |
0.88 |
0.59 |
|
|
|
1.00 |
1.06 |
0.97 |
|
|
|
1.09 |
1.03 |
1.11 |
|
|
|
0.85 |
0.90 |
0.89 |
|
|
|
0.91 |
0.92 |
0.96 |
|
|
|
1.00 |
1.23 |
1.23 |