測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
50401 |
石淵ダム貯水池 |
L‐11(ダムサイト) |
AA |
測定結果
採取年月日 |
2002.04.24 |
2002.04.24 |
2002.04.24 |
2002.05.23 |
2002.05.23 |
2002.05.23 |
2002.06.12 |
2002.06.12 |
2002.06.12 |
2002.07.23 |
2002.07.23 |
2002.07.23 |
2002.08.30 |
2002.08.30 |
2002.08.30 |
2002.09.18 |
2002.09.18 |
2002.09.18 |
2002.10.23 |
2002.10.23 |
2002.10.23 |
2002.11.13 |
2002.11.13 |
2002.11.13 |
2002.12.11 |
2002.12.11 |
2002.12.11 |
2003.01.08 |
2003.01.08 |
2003.01.08 |
2003.02.05 |
2003.02.05 |
2003.02.05 |
2003.03.05 |
2003.03.05 |
2003.03.05 |
採取時刻 |
1010 |
1105 |
1130 |
1007 |
1055 |
1127 |
0952 |
1016 |
1030 |
0946 |
1022 |
1050 |
1000 |
1045 |
1108 |
0952 |
1033 |
1048 |
1015 |
1057 |
1124 |
1046 |
1127 |
1144 |
1010 |
1036 |
1054 |
0735 |
0807 |
0830 |
0805 |
0832 |
0848 |
0727 |
0756 |
0818 |
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 |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
雨 |
曇り |
雪 |
晴れ |
晴れ |
雪 |
雪 |
雪 |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
雪 |
雪 |
雪 |
気温 (℃) |
15.5 |
18.0 |
18.2 |
18.2 |
23.8 |
25.0 |
17.6 |
16.8 |
16.3 |
26.0 |
28.0 |
29.0 |
31.0 |
32.0 |
33.0 |
18.0 |
18.0 |
18.0 |
12.0 |
9.0 |
11.0 |
1.0 |
2.0 |
4.0 |
-5.0 |
-7.0 |
-7.0 |
-8.0 |
-8.0 |
-7.0 |
-13.0 |
-10.0 |
-9.5 |
-4.5 |
-5.0 |
-5.0 |
水温 (℃) |
8.3 |
5.5 |
5.2 |
10.2 |
6.9 |
5.7 |
17.0 |
9.3 |
5.9 |
21.6 |
12.3 |
7.3 |
21.3 |
13.9 |
9.1 |
17.0 |
13.9 |
9.3 |
10.9 |
10.6 |
10.2 |
4.5 |
4.5 |
4.4 |
2.6 |
3.2 |
3.7 |
0.7 |
0.8 |
0.4 |
0.1 |
1.2 |
1.7 |
0.3 |
1.6 |
1.6 |
流量 (m3/s) |
34.64 |
34.64 |
34.64 |
12.66 |
12.66 |
12.66 |
7.23 |
7.23 |
7.23 |
8.62 |
8.62 |
8.62 |
4.70 |
4.70 |
4.70 |
7.15 |
7.15 |
7.15 |
15.60 |
15.60 |
15.60 |
40.17 |
40.17 |
40.17 |
6.93 |
6.93 |
6.93 |
2.56 |
2.56 |
2.56 |
2.17 |
2.17 |
2.17 |
4.00 |
4.00 |
4.00 |
採取水深 (m) |
0.5 |
15.8 |
30.6 |
0.5 |
16.1 |
31.2 |
0.5 |
14.6 |
28.3 |
0.5 |
12.8 |
24.5 |
0.5 |
10.9 |
20.7 |
0.5 |
10.1 |
19.2 |
0.5 |
10.9 |
20.8 |
0.5 |
15.7 |
30.5 |
0.5 |
15.4 |
29.8 |
0.5 |
11.5 |
22.0 |
0.5 |
10.3 |
19.6 |
0.5 |
6.8 |
12.7 |
全水深 (m) |
31.6 |
31.6 |
31.6 |
32.2 |
32.2 |
32.2 |
29.3 |
29.3 |
29.3 |
25.5 |
25.5 |
25.5 |
21.7 |
21.7 |
21.7 |
20.2 |
20.2 |
20.2 |
21.8 |
21.8 |
21.8 |
31.5 |
31.5 |
31.5 |
30.8 |
30.8 |
30.8 |
23.0 |
23.0 |
23.0 |
20.6 |
20.6 |
20.6 |
13.7 |
13.7 |
13.7 |
透明度 (m) |
1.30 |
|
|
3.20 |
|
|
3.00 |
|
|
1.50 |
|
|
2.70 |
|
|
1.60 |
|
|
0.60 |
|
|
1.70 |
|
|
3.20 |
|
|
2.50 |
|
|
2.50 |
|
|
3.00 |
|
|
外観 |
無色澄明 |
白濁 |
濃白濁 |
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 |
白濁 |
濃白濁 |
無色澄明 |
無色澄明 |
茶濁 |
無色澄明 |
無色澄明 |
濃白濁 |
濃白濁 |
濃白濁 |
濃白濁 |
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 |
7.1 |
7.0 |
7.0 |
7.2 |
7.1 |
6.9 |
7.5 |
7.1 |
6.7 |
7.6 |
7.1 |
6.6 |
7.5 |
7.2 |
6.7 |
7.3 |
6.9 |
6.6 |
7.1 |
7.1 |
7.1 |
7.0 |
7.0 |
7.0 |
7.1 |
7.1 |
7.1 |
7.2 |
7.2 |
7.1 |
7.1 |
7.1 |
7.1 |
7.1 |
7.0 |
7.0 |
DO (mg/l) |
11.8 |
12.2 |
12.1 |
11.0 |
11.3 |
10.6 |
9.4 |
9.6 |
10.1 |
9.4 |
9.6 |
5.4 |
9.0 |
8.8 |
1.2 |
8.1 |
6.3 |
0.9 |
9.6 |
9.6 |
10.0 |
12.0 |
12.0 |
12.0 |
12.6 |
12.5 |
12.1 |
13.3 |
13.2 |
13.6 |
13.4 |
12.3 |
11.8 |
12.0 |
11.5 |
11.4 |
BOD (mg/l) |
< 0.5 |
< 0.5 |
0.5 |
0.5 |
< 0.5 |
0.5 |
0.8 |
< 0.5 |
< 0.5 |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.7 |
0.5 |
0.7 |
0.9 |
0.7 |
0.5 |
0.6 |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.5 |
0.6 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
COD (mg/l) |
1.1 |
1.5 |
1.2 |
1.1 |
1.0 |
1.1 |
1.4 |
1.2 |
1.6 |
1.6 |
1.8 |
2.8 |
1.1 |
1.5 |
3.5 |
1.6 |
1.9 |
4.6 |
2.9 |
2.8 |
2.7 |
1.8 |
1.8 |
1.6 |
0.8 |
0.9 |
1.5 |
1.2 |
1.2 |
1.0 |
1.3 |
1.0 |
1.1 |
< 0.5 |
0.5 |
0.5 |
SS (mg/l) |
5 |
10 |
8 |
1 |
2 |
4 |
1 |
2 |
8 |
2 |
6 |
26 |
2 |
5 |
30 |
3 |
6 |
20 |
15 |
16 |
20 |
3 |
3 |
3 |
1 |
1 |
8 |
1 |
2 |
2 |
< 1 |
1 |
2 |
< 1 |
1 |
1 |
大腸菌群数 (MPN/100ml) |
2.0E+00 |
1.7E+01 |
4.5E+00 |
< 1.8E+00 |
4.5E+00 |
2.0E+00 |
2.0E+00 |
< 1.8E+00 |
4.5E+00 |
1.7E+01 |
4.9E+01 |
2.2E+02 |
4.9E+01 |
3.3E+01 |
7.9E+02 |
1.3E+02 |
7.9E+02 |
3.3E+02 |
3.3E+02 |
2.4E+02 |
2.4E+02 |
4.9E+01 |
4.9E+01 |
7.9E+01 |
1.7E+01 |
7.8E+00 |
1.3E+01 |
2.0E+00 |
7.8E+00 |
7.8E+00 |
4.5E+00 |
< 1.8E+00 |
4.5E+00 |
4.5E+00 |
7.8E+00 |
2.0E+00 |
全窒素 (mg/l) |
0.23 |
0.27 |
0.29 |
0.35 |
0.21 |
0.19 |
0.20 |
0.21 |
0.38 |
0.18 |
0.24 |
0.48 |
0.15 |
0.19 |
0.75 |
0.22 |
0.22 |
0.91 |
0.32 |
0.34 |
0.29 |
0.16 |
0.14 |
0.14 |
0.15 |
0.13 |
0.21 |
0.19 |
0.19 |
0.21 |
0.20 |
0.17 |
0.14 |
0.17 |
0.21 |
0.18 |
全燐 (mg/l) |
0.006 |
0.007 |
0.008 |
0.004 |
0.005 |
0.006 |
0.004 |
< 0.003 |
0.010 |
0.006 |
0.011 |
0.031 |
0.003 |
0.004 |
0.029 |
0.006 |
0.009 |
0.030 |
0.014 |
0.015 |
0.016 |
0.007 |
0.006 |
0.005 |
< 0.003 |
< 0.003 |
0.010 |
0.004 |
0.004 |
0.006 |
< 0.003 |
< 0.003 |
0.003 |
< 0.003 |
< 0.003 |
0.003 |
カドミウム (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
全シアン (mg/l) |
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
鉛 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
六価クロム (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
砒素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
総水銀 (mg/l) |
|
|
|
|
|
|
|
|
|
< 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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
クロロフィル-a (ug/l) |
|
|
|
< 2 |
|
|
|
|
|
< 2 |
|
|
|
|
|
< 2 |
|
|
|
|
|
< 2 |
|
|
|
|
|
< 2 |
|
|
|
|
|
< 2 |
|
|
透視度 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
7.6 |
> 30.0 |
19.0 |
> 30.0 |
> 30.0 |
22.0 |
> 30.0 |
> 30.0 |
22.0 |
> 30.0 |
28.0 |
> 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) |
|
|
|
0.10 |
0.12 |
0.12 |
|
|
|
0.06 |
0.13 |
0.08 |
|
|
|
0.10 |
0.03 |
0.03 |
|
|
|
0.11 |
0.11 |
0.10 |
|
|
|
0.14 |
0.13 |
0.14 |
|
|
|
0.12 |
0.11 |
0.12 |