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 |
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 |
2000.07.19 |
2000.07.19 |
2000.07.19 |
2000.08.09 |
2000.08.09 |
2000.08.09 |
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 |
2000.12.20 |
2000.12.20 |
2000.12.20 |
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 |
0935 |
1036 |
1045 |
0933 |
1021 |
1040 |
1020 |
1059 |
1111 |
1030 |
1058 |
1111 |
1036 |
1113 |
1118 |
0950 |
1040 |
1053 |
1018 |
1047 |
1107 |
0940 |
1016 |
1029 |
1009 |
1049 |
1109 |
0816 |
0859 |
0907 |
0812 |
0912 |
0930 |
0815 |
0850 |
0908 |
天候 |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
雪 |
雪 |
雪 |
晴れ |
晴れ |
晴れ |
雪 |
曇り |
曇り |
気温 (℃) |
16.0 |
18.0 |
20.0 |
15.0 |
17.0 |
13.0 |
23.0 |
21.0 |
23.0 |
27.0 |
27.5 |
28.0 |
25.0 |
26.0 |
26.0 |
24.0 |
23.0 |
22.0 |
26.0 |
24.0 |
23.0 |
11.0 |
13.0 |
13.0 |
8.8 |
6.5 |
6.5 |
-7.0 |
-7.0 |
-7.0 |
-5.0 |
-4.0 |
-4.0 |
-1.0 |
0.0 |
0.0 |
水温 (℃) |
6.4 |
5.0 |
3.7 |
7.4 |
6.8 |
5.9 |
15.4 |
8.7 |
6.1 |
21.6 |
13.4 |
6.4 |
24.2 |
12.1 |
6.5 |
18.1 |
15.5 |
7.0 |
14.0 |
12.3 |
7.5 |
8.2 |
7.7 |
6.9 |
1.8 |
2.0 |
2.1 |
0.1 |
0.6 |
0.5 |
0.3 |
0.6 |
0.5 |
0.9 |
0.5 |
0.6 |
流量 (m3/s) |
41.57 |
41.57 |
41.57 |
32.44 |
32.44 |
32.44 |
11.49 |
11.49 |
11.49 |
18.21 |
18.21 |
18.21 |
5.95 |
5.95 |
5.95 |
11.67 |
11.67 |
11.67 |
4.21 |
4.21 |
4.21 |
11.52 |
11.52 |
11.52 |
15.71 |
15.71 |
15.71 |
2.60 |
2.60 |
2.60 |
3.44 |
3.44 |
3.44 |
7.83 |
7.83 |
7.83 |
採取水深 (m) |
0.5 |
15.4 |
30.8 |
0.5 |
15.5 |
30.9 |
0.5 |
13.5 |
27.0 |
0.5 |
12.5 |
25.0 |
0.5 |
11.5 |
23.0 |
0.5 |
11.4 |
22.8 |
0.5 |
8.5 |
16.9 |
0.5 |
14.2 |
28.4 |
0.5 |
13.7 |
27.4 |
0.5 |
10.0 |
19.8 |
0.5 |
8.6 |
17.2 |
0.5 |
6.1 |
12.3 |
全水深 (m) |
31.8 |
31.8 |
31.8 |
31.9 |
31.9 |
31.9 |
28.0 |
28.0 |
28.0 |
26.0 |
26.0 |
26.0 |
24.0 |
24.0 |
24.0 |
23.8 |
23.8 |
23.8 |
17.9 |
17.9 |
17.9 |
29.4 |
29.4 |
29.4 |
28.4 |
28.4 |
28.4 |
20.8 |
20.8 |
20.8 |
18.2 |
18.2 |
18.2 |
13.3 |
13.3 |
13.3 |
透明度 (m) |
1.00 |
|
|
1.10 |
|
|
3.80 |
|
|
1.80 |
|
|
1.10 |
|
|
1.00 |
|
|
1.20 |
|
|
4.00 |
|
|
3.20 |
|
|
1.80 |
|
|
2.80 |
|
|
2.60 |
|
|
外観 |
無色澄明 |
濃白濁 |
濃白濁 |
無色澄明 |
無色澄明 |
微白濁 |
無色澄明 |
無色澄明 |
濃白濁 |
無色澄明 |
無色澄明 |
微白濁 |
無色澄明 |
無色澄明 |
濃白濁 |
無色澄明 |
無色澄明 |
微白濁 |
無色澄明 |
無色澄明 |
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 |
6.7 |
6.7 |
6.6 |
7.0 |
7.0 |
7.0 |
7.2 |
7.1 |
6.9 |
7.2 |
7.0 |
6.7 |
7.2 |
6.7 |
6.4 |
7.1 |
7.1 |
6.6 |
7.2 |
7.0 |
6.7 |
7.2 |
7.2 |
7.2 |
7.0 |
7.0 |
7.0 |
7.3 |
7.5 |
7.5 |
7.4 |
7.3 |
7.2 |
7.2 |
7.1 |
7.2 |
DO (mg/l) |
12.1 |
12.3 |
12.5 |
11.7 |
11.7 |
11.8 |
10.0 |
10.5 |
8.4 |
9.0 |
8.2 |
4.6 |
8.4 |
6.7 |
2.9 |
9.0 |
9.1 |
0.7 |
9.0 |
7.4 |
3.1 |
10.9 |
10.8 |
11.1 |
12.2 |
12.4 |
12.3 |
13.7 |
16.1 |
16.7 |
|
|
|
|
|
|
BOD (mg/l) |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.6 |
< 0.5 |
< 0.5 |
0.5 |
< 0.5 |
< 0.5 |
0.8 |
< 0.5 |
0.5 |
1.2 |
0.6 |
0.7 |
< 0.5 |
< 0.5 |
0.6 |
< 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 |
< 0.5 |
COD (mg/l) |
1.1 |
1.2 |
2.7 |
1.0 |
0.9 |
1.1 |
0.9 |
0.8 |
3.9 |
1.6 |
2.7 |
1.3 |
2.1 |
2.2 |
3.0 |
3.3 |
2.1 |
3.3 |
1.3 |
1.3 |
3.5 |
1.5 |
1.6 |
1.6 |
1.1 |
1.0 |
1.1 |
0.8 |
0.5 |
0.5 |
0.8 |
0.6 |
0.8 |
1.1 |
0.8 |
0.9 |
SS (mg/l) |
6 |
20 |
33 |
5 |
7 |
9 |
< 1 |
1 |
25 |
2 |
6 |
17 |
5 |
6 |
120 |
6 |
5 |
13 |
3 |
5 |
16 |
1 |
1 |
1 |
1 |
2 |
3 |
< 1 |
2 |
2 |
< 1 |
< 1 |
1 |
2 |
2 |
3 |
大腸菌群数 (MPN/100ml) |
2.0E+00 |
7.8E+00 |
2.3E+01 |
2.0E+00 |
1.3E+01 |
2.3E+01 |
2.0E+00 |
2.0E+00 |
1.7E+01 |
1.3E+02 |
1.3E+02 |
1.3E+02 |
3.3E+02 |
1.7E+03 |
3.3E+02 |
7.9E+03 |
7.9E+03 |
7.9E+02 |
3.3E+01 |
7.9E+01 |
3.3E+02 |
1.7E+02 |
1.3E+02 |
1.3E+02 |
3.3E+01 |
4.9E+01 |
2.3E+01 |
3.3E+01 |
4.5E+00 |
1.1E+01 |
2.0E+00 |
1.3E+01 |
4.5E+00 |
1.7E+01 |
3.3E+01 |
7.8E+00 |
全窒素 (mg/l) |
0.24 |
0.30 |
0.44 |
0.24 |
0.22 |
0.25 |
0.12 |
0.14 |
0.49 |
0.21 |
0.30 |
0.42 |
0.28 |
0.24 |
0.58 |
0.40 |
0.24 |
0.71 |
0.22 |
0.21 |
0.80 |
0.16 |
0.13 |
0.35 |
0.28 |
0.34 |
0.25 |
0.21 |
0.20 |
0.18 |
0.25 |
0.21 |
0.19 |
0.41 |
0.31 |
0.30 |
全燐 (mg/l) |
0.007 |
0.020 |
0.052 |
0.009 |
0.011 |
0.013 |
0.010 |
0.011 |
0.020 |
0.004 |
0.007 |
0.012 |
0.008 |
0.006 |
0.026 |
0.013 |
0.008 |
0.024 |
0.006 |
0.005 |
0.027 |
0.007 |
0.008 |
0.008 |
0.004 |
0.004 |
0.006 |
0.003 |
0.006 |
0.006 |
0.003 |
0.004 |
0.005 |
0.003 |
0.004 |
0.005 |
カドミウム (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
全シアン (mg/l) |
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
鉛 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
アンモニア性窒素 (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
< 0.1 |
< 0.1 |
|
|
|
|
|
|
クロロフィル-a (ug/l) |
|
|
|
< 2 |
|
|
|
|
|
< 2 |
|
|
|
|
|
< 2 |
|
|
|
|
|
< 2 |
|
|
|
|
|
< 2 |
|
|
|
|
|
< 2 |
|
|
透視度 |
> 30.0 |
21.0 |
8.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
12.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
24.0 |
> 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) |
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.14 |
0.15 |
0.13 |
|
|
|
0.10 |
0.13 |
0.09 |
|
|
|
0.20 |
0.18 |
0.18 |
|
|
|
0.11 |
0.11 |
0.11 |
|
|
|
0.17 |
0.15 |
0.15 |
|
|
|
0.33 |
0.20 |
0.20 |