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 |
2001.04.18 |
2001.04.18 |
2001.04.18 |
2001.05.23 |
2001.05.23 |
2001.05.23 |
2001.06.26 |
2001.06.26 |
2001.06.26 |
2001.07.11 |
2001.07.11 |
2001.07.11 |
2001.08.29 |
2001.08.29 |
2001.08.29 |
2001.09.19 |
2001.09.19 |
2001.09.19 |
2001.10.10 |
2001.10.10 |
2001.10.10 |
2001.11.14 |
2001.11.14 |
2001.11.14 |
2001.12.12 |
2001.12.12 |
2001.12.12 |
2002.01.16 |
2002.01.16 |
2002.01.16 |
2002.02.13 |
2002.02.13 |
2002.02.13 |
2002.03.06 |
2002.03.06 |
2002.03.06 |
採取時刻 |
0950 |
1020 |
1040 |
0920 |
0950 |
1005 |
0910 |
0935 |
0950 |
0920 |
0950 |
1020 |
1010 |
1030 |
1050 |
0940 |
1000 |
1030 |
0940 |
1000 |
1015 |
0930 |
1020 |
1050 |
0940 |
1010 |
1030 |
1000 |
1030 |
1050 |
0940 |
1010 |
1030 |
0940 |
1010 |
1030 |
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 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
雨 |
雨 |
雨 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
雪 |
雪 |
雪 |
気温 (℃) |
16.0 |
16.0 |
16.0 |
19.5 |
19.5 |
19.5 |
25.0 |
25.0 |
25.0 |
27.0 |
27.0 |
27.0 |
24.1 |
24.1 |
24.1 |
18.2 |
18.2 |
18.2 |
12.0 |
12.0 |
12.0 |
3.5 |
3.5 |
3.5 |
2.3 |
2.3 |
2.3 |
2.6 |
2.6 |
2.6 |
-2.5 |
-2.5 |
-2.5 |
0.1 |
0.1 |
0.1 |
水温 (℃) |
12.5 |
9.5 |
8.5 |
18.0 |
14.2 |
12.5 |
20.6 |
19.0 |
14.2 |
22.4 |
21.2 |
18.7 |
21.8 |
20.9 |
20.2 |
18.4 |
17.1 |
17.0 |
14.3 |
14.2 |
13.7 |
8.7 |
7.9 |
7.6 |
3.6 |
3.8 |
3.8 |
1.1 |
2.1 |
2.6 |
1.2 |
3.2 |
3.8 |
2.2 |
3.8 |
3.9 |
流量 (m3/s) |
54.49 |
54.49 |
54.49 |
39.00 |
39.00 |
39.00 |
23.29 |
23.29 |
23.29 |
22.51 |
22.51 |
22.51 |
38.73 |
38.73 |
38.73 |
46.32 |
46.32 |
46.32 |
25.03 |
25.03 |
25.03 |
21.53 |
21.53 |
21.53 |
32.02 |
32.02 |
32.02 |
38.51 |
38.51 |
38.51 |
20.64 |
20.64 |
20.64 |
32.29 |
32.29 |
32.29 |
採取水深 (m) |
0.5 |
12.5 |
24.0 |
0.5 |
12.1 |
23.2 |
0.5 |
8.2 |
15.4 |
0.5 |
7.0 |
13.0 |
0.5 |
7.0 |
13.0 |
0.5 |
7.1 |
13.2 |
0.5 |
7.0 |
12.9 |
0.5 |
12.0 |
23.0 |
0.5 |
12.1 |
23.1 |
0.5 |
12.3 |
23.6 |
0.5 |
12.2 |
23.4 |
0.5 |
11.7 |
22.4 |
全水深 (m) |
25.0 |
25.0 |
25.0 |
24.2 |
24.2 |
24.2 |
16.4 |
16.4 |
16.4 |
14.0 |
14.0 |
14.0 |
14.0 |
14.0 |
14.0 |
14.2 |
14.2 |
14.2 |
13.9 |
13.9 |
13.9 |
24.0 |
24.0 |
24.0 |
24.1 |
24.1 |
24.1 |
24.6 |
24.6 |
24.6 |
24.4 |
24.4 |
24.4 |
23.4 |
23.4 |
23.4 |
透明度 (m) |
2.00 |
|
|
3.00 |
|
|
1.50 |
|
|
1.50 |
|
|
1.80 |
|
|
1.00 |
|
|
1.60 |
|
|
2.40 |
|
|
3.60 |
|
|
3.20 |
|
|
3.40 |
|
|
3.30 |
|
|
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 |
微茶濁 |
微茶濁 |
微茶濁 |
無色澄明 |
無色澄明 |
無色澄明 |
微茶濁 |
微茶濁 |
微茶濁 |
白濁 |
白濁 |
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 |
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 |
7.2 |
7.1 |
7.7 |
7.1 |
7.0 |
7.9 |
7.5 |
7.3 |
8.0 |
7.5 |
7.3 |
7.7 |
7.6 |
7.5 |
7.6 |
7.4 |
7.5 |
7.6 |
7.5 |
7.4 |
7.5 |
7.5 |
7.5 |
7.5 |
7.5 |
7.5 |
7.5 |
7.4 |
7.3 |
7.5 |
7.4 |
7.3 |
7.8 |
7.4 |
7.3 |
DO (mg/l) |
10.9 |
10.6 |
10.5 |
10.2 |
9.3 |
8.9 |
10.2 |
7.8 |
6.9 |
9.4 |
8.2 |
7.8 |
9.9 |
8.3 |
7.9 |
8.7 |
8.8 |
9.0 |
9.9 |
9.7 |
9.5 |
11.9 |
10.9 |
11.0 |
12.0 |
11.8 |
11.9 |
13.4 |
12.0 |
11.0 |
14.0 |
11.9 |
12.0 |
14.9 |
12.0 |
11.6 |
BOD (mg/l) |
1.1 |
0.6 |
0.8 |
0.9 |
0.5 |
0.5 |
2.2 |
1.0 |
0.9 |
2.4 |
0.6 |
0.7 |
0.5 |
0.6 |
0.6 |
0.9 |
0.5 |
0.5 |
0.7 |
< 0.5 |
< 0.5 |
1.0 |
0.5 |
5.0 |
0.7 |
0.7 |
0.7 |
1.3 |
0.5 |
< 0.5 |
1.7 |
0.9 |
0.9 |
0.9 |
0.7 |
0.9 |
COD (mg/l) |
1.8 |
1.5 |
1.5 |
1.7 |
1.2 |
1.3 |
3.5 |
2.5 |
3.4 |
3.2 |
2.3 |
2.5 |
2.2 |
1.9 |
1.9 |
1.9 |
1.9 |
2.2 |
1.6 |
1.6 |
1.5 |
1.6 |
1.7 |
1.7 |
1.5 |
1.4 |
1.6 |
1.7 |
0.9 |
1.0 |
2.1 |
1.3 |
1.3 |
1.6 |
1.5 |
1.5 |
SS (mg/l) |
2 |
3 |
3 |
1 |
2 |
2 |
3 |
5 |
5 |
6 |
5 |
5 |
8 |
5 |
6 |
4 |
6 |
13 |
4 |
4 |
7 |
2 |
2 |
2 |
1 |
2 |
2 |
1 |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
大腸菌群数 (MPN/100ml) |
4.9E+01 |
7.9E+02 |
3.3E+02 |
2.3E+01 |
1.3E+02 |
1.3E+02 |
7.9E+01 |
1.3E+03 |
4.9E+02 |
4.9E+02 |
1.3E+03 |
1.3E+03 |
4.9E+03 |
3.5E+04 |
1.3E+04 |
4.9E+03 |
7.9E+03 |
7.9E+03 |
2.2E+03 |
4.9E+03 |
2.4E+03 |
4.9E+01 |
2.2E+03 |
2.4E+03 |
1.7E+02 |
1.3E+02 |
1.1E+02 |
1.7E+01 |
2.4E+02 |
1.7E+02 |
2.0E+00 |
1.7E+02 |
3.3E+02 |
< 1.8E+00 |
4.9E+02 |
1.3E+02 |
全窒素 (mg/l) |
|
|
|
1.00 |
1.10 |
1.10 |
|
|
|
1.40 |
1.20 |
1.20 |
|
|
|
1.30 |
1.30 |
1.30 |
|
|
|
0.92 |
0.93 |
0.94 |
|
|
|
1.10 |
0.99 |
1.00 |
|
|
|
1.10 |
1.20 |
1.20 |
全燐 (mg/l) |
|
|
|
0.007 |
0.012 |
0.014 |
|
|
|
0.028 |
0.024 |
0.023 |
|
|
|
0.023 |
0.025 |
0.033 |
|
|
|
0.018 |
0.015 |
0.014 |
|
|
|
0.020 |
0.012 |
0.014 |
|
|
|
0.011 |
0.014 |
0.015 |
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) |
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
|
|
|
|
< 0.02 |
|
|
砒素 (mg/l) |
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
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 |
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チウラム (mg/l) |
|
|
|
< 0.0006 |
|
|
|
|
|
< 0.0006 |
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
シマジン (mg/l) |
|
|
|
< 0.0003 |
|
|
|
|
|
< 0.0003 |
|
|
< 0.0003 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チオベンカルブ (mg/l) |
|
|
|
< 0.002 |
|
|
|
|
|
< 0.002 |
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ベンゼン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
セレン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ふっ素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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) |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
22 |
2 |
4 |
|
|
|
2 |
< 2 |
< 2 |
|
|
|
7 |
3 |
< 2 |
|
|
|
11 |
< 2 |
< 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 |
ほう素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.84 |
0.93 |
0.81 |
|
|
|
1.09 |
1.20 |
1.11 |
|
|
|
1.24 |
1.13 |
1.19 |
|
|
|
0.75 |
0.75 |
0.75 |
|
|
|
0.98 |
0.91 |
0.87 |
|
|
|
1.01 |
1.20 |
1.01 |