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 |
2000.04.26 |
2000.04.26 |
2000.04.26 |
2000.05.17 |
2000.05.17 |
2000.05.17 |
2000.06.14 |
2000.06.14 |
2000.06.14 |
2000.07.12 |
2000.07.12 |
2000.07.12 |
2000.08.17 |
2000.08.17 |
2000.08.17 |
2000.09.20 |
2000.09.20 |
2000.09.20 |
2000.10.11 |
2000.10.11 |
2000.10.11 |
2000.11.15 |
2000.11.15 |
2000.11.15 |
2000.12.13 |
2000.12.13 |
2000.12.13 |
2001.01.17 |
2001.01.17 |
2001.01.17 |
2001.02.14 |
2001.02.14 |
2001.02.14 |
2001.03.07 |
2001.03.07 |
2001.03.07 |
採取時刻 |
1015 |
1045 |
1100 |
0920 |
0950 |
1010 |
1040 |
1120 |
1140 |
0950 |
1010 |
1050 |
0925 |
0950 |
1020 |
0940 |
1000 |
1020 |
1000 |
1020 |
1040 |
0930 |
1000 |
1020 |
0920 |
0950 |
1010 |
0940 |
1030 |
1100 |
0930 |
1000 |
1030 |
0940 |
1010 |
1040 |
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 |
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 |
雪 |
雪 |
雪 |
気温 (℃) |
16.5 |
16.5 |
16.5 |
15.8 |
15.8 |
15.8 |
23.0 |
23.0 |
23.0 |
23.0 |
23.0 |
23.0 |
23.3 |
23.3 |
23.3 |
25.1 |
25.1 |
25.1 |
19.8 |
19.8 |
19.8 |
8.5 |
8.5 |
8.5 |
0.3 |
0.3 |
0.3 |
-10.5 |
-10.5 |
-10.5 |
-5.8 |
-5.8 |
-5.8 |
-0.5 |
-0.5 |
-0.5 |
水温 (℃) |
10.0 |
8.4 |
8.4 |
15.4 |
12.8 |
12.0 |
20.3 |
16.9 |
15.6 |
21.8 |
20.4 |
17.5 |
22.7 |
22.2 |
20.8 |
19.6 |
18.8 |
18.3 |
15.9 |
15.7 |
14.8 |
9.3 |
8.8 |
8.1 |
2.8 |
3.1 |
3.3 |
0.8 |
1.6 |
2.3 |
0.7 |
1.8 |
2.1 |
0.9 |
3.4 |
3.6 |
流量 (m3/s) |
90.61 |
90.61 |
90.61 |
99.11 |
99.11 |
99.11 |
30.08 |
30.08 |
30.08 |
36.48 |
36.48 |
36.48 |
35.90 |
35.90 |
35.90 |
50.32 |
50.32 |
50.32 |
28.92 |
28.92 |
28.92 |
38.02 |
38.02 |
38.02 |
43.89 |
43.89 |
43.89 |
36.94 |
36.94 |
36.94 |
19.53 |
19.53 |
19.53 |
44.26 |
44.26 |
44.26 |
採取水深 (m) |
0.5 |
12.7 |
24.3 |
0.5 |
12.8 |
24.5 |
0.5 |
10.2 |
19.4 |
0.5 |
7.0 |
13.1 |
0.5 |
7.3 |
13.6 |
0.5 |
7.2 |
13.4 |
0.5 |
7.0 |
13.0 |
0.5 |
11.4 |
21.7 |
0.5 |
11.8 |
22.6 |
0.5 |
12.5 |
24.0 |
0.5 |
12.2 |
23.3 |
0.5 |
12.1 |
23.2 |
全水深 (m) |
25.3 |
25.3 |
25.3 |
25.5 |
25.5 |
25.5 |
20.4 |
20.4 |
20.4 |
14.1 |
14.1 |
14.1 |
14.6 |
14.6 |
14.6 |
14.4 |
14.4 |
14.4 |
14.0 |
14.0 |
14.0 |
22.7 |
22.7 |
22.7 |
23.6 |
23.6 |
23.6 |
25.0 |
25.0 |
25.0 |
24.3 |
24.3 |
24.3 |
24.2 |
24.2 |
24.2 |
透明度 (m) |
0.50 |
|
|
1.60 |
|
|
3.60 |
|
|
1.10 |
|
|
2.00 |
|
|
0.90 |
|
|
2.30 |
|
|
3.00 |
|
|
3.30 |
|
|
4.50 |
|
|
3.20 |
|
|
2.40 |
|
|
外観 |
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 |
茶濁 |
茶濁 |
茶濁 |
白濁 |
無色澄明 |
無色澄明 |
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 |
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 |
6.8 |
6.9 |
6.9 |
7.2 |
7.0 |
7.1 |
7.4 |
7.3 |
7.3 |
7.5 |
7.5 |
7.4 |
7.6 |
7.6 |
7.5 |
7.4 |
7.4 |
7.4 |
7.5 |
7.5 |
7.5 |
7.4 |
7.3 |
7.4 |
7.4 |
7.5 |
7.5 |
7.4 |
7.2 |
7.4 |
7.3 |
7.3 |
7.3 |
7.4 |
7.4 |
7.5 |
DO (mg/l) |
11.3 |
11.1 |
11.1 |
11.7 |
10.3 |
10.2 |
9.7 |
8.7 |
8.8 |
9.0 |
8.6 |
8.4 |
8.0 |
7.9 |
7.3 |
8.9 |
8.8 |
9.0 |
10.3 |
9.8 |
9.4 |
10.4 |
10.2 |
10.5 |
12.5 |
12.3 |
12.0 |
13.5 |
12.6 |
11.4 |
15.6 |
12.7 |
12.5 |
13.3 |
11.9 |
11.3 |
BOD (mg/l) |
0.9 |
< 0.5 |
< 0.5 |
0.8 |
0.5 |
0.5 |
0.9 |
0.6 |
0.5 |
1.1 |
0.6 |
0.9 |
1.4 |
1.0 |
0.5 |
1.1 |
0.6 |
< 0.5 |
0.8 |
0.5 |
< 0.5 |
0.8 |
0.9 |
0.9 |
0.5 |
< 0.5 |
< 0.5 |
0.8 |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.5 |
1.0 |
0.9 |
0.9 |
COD (mg/l) |
1.8 |
1.5 |
1.4 |
1.8 |
2.3 |
1.8 |
1.6 |
1.3 |
1.2 |
1.7 |
1.7 |
2.6 |
3.9 |
3.7 |
3.0 |
2.5 |
1.7 |
1.8 |
1.6 |
1.4 |
1.2 |
2.0 |
1.8 |
1.7 |
1.2 |
1.8 |
1.2 |
1.2 |
1.0 |
0.8 |
1.2 |
1.2 |
1.3 |
1.6 |
2.0 |
2.2 |
SS (mg/l) |
7 |
8 |
8 |
3 |
6 |
7 |
1 |
2 |
3 |
4 |
6 |
11 |
14 |
14 |
13 |
6 |
5 |
6 |
2 |
3 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
< 1 |
1 |
2 |
1 |
5 |
5 |
大腸菌群数 (MPN/100ml) |
7.9E+02 |
1.3E+03 |
1.7E+03 |
7.9E+01 |
2.4E+03 |
2.4E+03 |
7.9E+01 |
2.4E+03 |
3.3E+03 |
1.7E+03 |
1.3E+04 |
1.1E+04 |
9.2E+04 |
3.5E+04 |
1.3E+04 |
5.4E+04 |
9.2E+04 |
9.2E+04 |
7.9E+03 |
1.7E+04 |
1.7E+04 |
2.4E+03 |
1.1E+04 |
1.7E+04 |
7.9E+01 |
7.0E+01 |
1.1E+02 |
7.9E+02 |
1.7E+02 |
7.9E+01 |
3.3E+01 |
1.1E+03 |
1.3E+03 |
3.3E+01 |
4.9E+02 |
3.3E+03 |
全窒素 (mg/l) |
|
|
|
1.11 |
1.19 |
1.19 |
|
|
|
1.06 |
1.26 |
1.20 |
|
|
|
1.71 |
1.29 |
1.33 |
|
|
|
1.23 |
0.1 |
1.32 |
|
|
|
1.10 |
1.09 |
1.24 |
|
|
|
1.08 |
1.30 |
1.29 |
全燐 (mg/l) |
|
|
|
0.024 |
0.029 |
0.032 |
|
|
|
0.028 |
0.023 |
0.037 |
|
|
|
0.039 |
0.025 |
0.029 |
|
|
|
0.015 |
1.12 |
0.018 |
|
|
|
0.015 |
0.011 |
0.010 |
|
|
|
0.013 |
0.033 |
0.036 |
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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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) |
|
|
|
4 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
2 |
< 2 |
< 2 |
|
|
|
2 |
< 2 |
< 2 |
|
|
|
2 |
< 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 |
23.0 |
23.0 |
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 |
ほう素 (mg/l) |
|
|
|
|
|
|
|
|
|
0.06 |
|
|
|
|
|
|
|
|
|
|
|
0.07 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.85 |
1.03 |
1.03 |
|
|
|
0.92 |
1.21 |
1.06 |
|
|
|
1.16 |
1.16 |
1.15 |
|
|
|
0.87 |
0.85 |
0.98 |
|
|
|
1.00 |
1.08 |
1.19 |
|
|
|
0.99 |
1.07 |
1.19 |