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 |
1999.04.21 |
1999.04.21 |
1999.04.21 |
1999.05.19 |
1999.05.19 |
1999.05.19 |
1999.06.09 |
1999.06.09 |
1999.06.09 |
1999.07.21 |
1999.07.21 |
1999.07.21 |
1999.08.18 |
1999.08.18 |
1999.08.18 |
1999.09.08 |
1999.09.08 |
1999.09.08 |
1999.10.13 |
1999.10.13 |
1999.10.13 |
1999.11.17 |
1999.11.17 |
1999.11.17 |
1999.12.08 |
1999.12.08 |
1999.12.08 |
2000.01.12 |
2000.01.12 |
2000.01.12 |
2000.02.09 |
2000.02.09 |
2000.02.09 |
2000.03.08 |
2000.03.08 |
2000.03.08 |
採取時刻 |
1015 |
1133 |
1206 |
0925 |
1037 |
1126 |
1002 |
1104 |
1126 |
1020 |
1100 |
1115 |
1012 |
1040 |
1052 |
1030 |
1104 |
1118 |
0940 |
1000 |
1013 |
1032 |
1118 |
1147 |
1050 |
1132 |
1150 |
0815 |
0848 |
0910 |
0812 |
0835 |
0850 |
0756 |
0841 |
0905 |
天候 |
晴れ |
晴れ |
晴れ |
雨 |
雨 |
雨 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
雨 |
雨 |
雨 |
雨 |
曇り |
雪 |
雪 |
雪 |
雪 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
雪 |
雪 |
雪 |
気温 (℃) |
10.0 |
12.0 |
12.0 |
13.0 |
12.5 |
13.0 |
18.0 |
18.0 |
17.5 |
26.0 |
28.0 |
28.0 |
29.0 |
29.0 |
29.0 |
22.0 |
24.0 |
24.0 |
18.0 |
19.0 |
20.0 |
1.5 |
1.5 |
1.5 |
1.0 |
1.0 |
1.0 |
-1.0 |
0.5 |
0.5 |
1.0 |
0.5 |
1.0 |
0.0 |
0.0 |
0.0 |
水温 (℃) |
6.5 |
5.7 |
5.7 |
10.7 |
6.8 |
6.0 |
15.7 |
7.5 |
6.2 |
17.7 |
14.0 |
6.5 |
24.0 |
18.5 |
7.3 |
19.4 |
15.3 |
7.3 |
14.2 |
12.6 |
7.7 |
7.4 |
7.3 |
6.9 |
2.5 |
2.6 |
2.8 |
0.7 |
0.7 |
0.3 |
0.9 |
2.2 |
2.2 |
0.3 |
0.3 |
0.3 |
流量 (m3/s) |
40.29 |
40.29 |
40.29 |
15.01 |
15.01 |
15.01 |
6.07 |
6.07 |
6.07 |
10.00 |
10.00 |
10.00 |
3.96 |
3.96 |
3.96 |
5.89 |
5.89 |
5.89 |
6.35 |
6.35 |
6.35 |
7.22 |
7.22 |
7.22 |
11.24 |
11.24 |
11.24 |
10.00 |
10.00 |
10.00 |
3.00 |
3.00 |
3.00 |
6.00 |
6.00 |
6.00 |
採取水深 (m) |
0.5 |
15.0 |
30.2 |
0.5 |
15.0 |
30.8 |
0.5 |
15.0 |
24.5 |
0.5 |
10.0 |
24.7 |
0.5 |
10.0 |
23.6 |
0.5 |
10.0 |
20.2 |
0.5 |
8.0 |
16.6 |
0.5 |
8.0 |
17.1 |
0.5 |
10.0 |
20.2 |
0.5 |
15.0 |
28.9 |
0.5 |
10.0 |
23.7 |
0.5 |
6.0 |
10.5 |
全水深 (m) |
31.2 |
31.2 |
31.2 |
31.8 |
31.8 |
31.8 |
25.5 |
25.5 |
25.5 |
25.7 |
25.7 |
25.7 |
24.6 |
24.6 |
24.6 |
21.2 |
21.2 |
21.2 |
17.6 |
17.6 |
17.6 |
18.1 |
18.1 |
18.1 |
21.2 |
21.2 |
21.2 |
29.9 |
29.9 |
29.9 |
24.7 |
24.7 |
24.7 |
11.5 |
11.5 |
11.5 |
透明度 (m) |
0.80 |
|
|
2.00 |
|
|
2.80 |
|
|
1.00 |
|
|
1.70 |
|
|
2.20 |
|
|
1.50 |
|
|
1.30 |
|
|
2.50 |
|
|
1.60 |
|
|
4.20 |
|
|
2.50 |
|
|
外観 |
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 |
微黄濁 |
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 |
微白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
淡灰色 |
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 |
硫化水素( |
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 |
7.2 |
6.9 |
7.3 |
7.2 |
6.6 |
7.2 |
7.2 |
6.7 |
7.5 |
7.2 |
6.6 |
7.6 |
7.0 |
6.5 |
7.1 |
7.0 |
6.7 |
7.1 |
7.0 |
7.0 |
7.2 |
7.1 |
7.2 |
7.3 |
7.3 |
7.3 |
7.3 |
7.4 |
7.5 |
7.3 |
7.3 |
7.3 |
DO (mg/l) |
11.6 |
11.9 |
12.3 |
10.9 |
11.7 |
11.2 |
8.5 |
9.8 |
8.5 |
9.3 |
9.4 |
3.0 |
8.1 |
7.9 |
1.9 |
8.4 |
8.2 |
1.2 |
8.5 |
8.1 |
0.7 |
10.1 |
10.0 |
10.6 |
12.5 |
12.2 |
12.2 |
14.5 |
15.0 |
16.0 |
13.3 |
15.5 |
15.9 |
14.4 |
15.9 |
11.6 |
BOD (mg/l) |
< 0.5 |
< 0.5 |
0.5 |
< 0.5 |
< 0.5 |
0.5 |
< 0.5 |
< 0.5 |
0.5 |
0.8 |
0.5 |
0.5 |
0.6 |
< 0.5 |
0.7 |
1.3 |
< 0.5 |
0.6 |
< 0.5 |
< 0.5 |
0.9 |
< 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) |
0.9 |
0.9 |
0.8 |
0.5 |
< 0.5 |
0.9 |
0.9 |
1.1 |
1.1 |
1.8 |
1.3 |
2.3 |
3.6 |
2.1 |
2.0 |
2.0 |
2.0 |
2.4 |
1.2 |
1.6 |
4.0 |
1.2 |
1.1 |
1.3 |
0.9 |
0.7 |
5.8 |
0.8 |
0.9 |
0.8 |
0.7 |
0.5 |
0.5 |
0.8 |
0.9 |
0.9 |
SS (mg/l) |
9 |
8 |
8 |
2 |
3 |
12 |
2 |
6 |
10 |
3 |
6 |
28 |
3 |
5 |
12 |
2 |
3 |
18 |
4 |
8 |
20 |
10 |
10 |
17 |
2 |
3 |
61 |
3 |
3 |
4 |
1 |
1 |
1 |
2 |
2 |
2 |
大腸菌群数 (MPN/100ml) |
4.5E+00 |
4.5E+00 |
7.8E+00 |
2.0E+00 |
1.3E+01 |
3.3E+01 |
3.3E+01 |
1.3E+01 |
4.5E+00 |
4.9E+02 |
4.9E+02 |
3.3E+02 |
2.4E+03 |
3.3E+03 |
3.3E+02 |
3.3E+02 |
7.9E+02 |
2.4E+03 |
3.3E+02 |
3.3E+01 |
7.9E+02 |
3.3E+02 |
1.7E+02 |
4.9E+02 |
7.9E+01 |
7.9E+01 |
7.9E+01 |
1.7E+01 |
1.1E+01 |
1.3E+01 |
2.0E+00 |
7.8E+00 |
2.0E+00 |
2.0E+00 |
4.5E+00 |
2.0E+00 |
全窒素 (mg/l) |
0.33 |
0.31 |
0.35 |
0.19 |
0.19 |
0.31 |
0.10 |
0.11 |
0.27 |
0.41 |
0.21 |
0.59 |
0.29 |
0.28 |
0.39 |
0.21 |
0.19 |
0.75 |
0.24 |
0.24 |
0.81 |
0.24 |
0.20 |
0.24 |
0.17 |
0.14 |
0.48 |
0.21 |
0.19 |
0.22 |
0.16 |
0.09 |
0.07 |
0.21 |
0.28 |
0.23 |
全燐 (mg/l) |
0.011 |
0.009 |
0.009 |
0.004 |
0.005 |
0.015 |
0.005 |
0.009 |
0.015 |
0.010 |
0.008 |
0.037 |
0.009 |
0.009 |
0.016 |
0.004 |
0.005 |
0.017 |
0.004 |
0.008 |
0.031 |
0.007 |
0.009 |
0.014 |
< 0.003 |
< 0.003 |
0.070 |
0.005 |
0.005 |
0.007 |
0.004 |
0.004 |
0.007 |
0.005 |
0.006 |
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) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ふっ素 (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 |
|
|
|
|
|
3 |
|
|
|
|
|
4 |
|
|
|
|
|
< 2 |
|
|
|
|
|
< 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 |
14.0 |
> 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 |
19.0 |
> 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 |
< 0.02 |
|
|
|
< 0.02 |
< 0.02 |
< 0.02 |
|
|
|
< 0.02 |
< 0.02 |
< 0.02 |
|
|
|
< 0.02 |
< 0.02 |
< 0.02 |
|
|
|
< 0.02 |
< 0.02 |
< 0.02 |
|
|
|
< 0.02 |
< 0.02 |
< 0.02 |
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.12 |
0.14 |
0.10 |
|
|
|
0.10 |
0.12 |
0.07 |
|
|
|
0.06 |
0.13 |
< 0.02 |
|
|
|
0.08 |
0.06 |
0.07 |
|
|
|
0.07 |
0.07 |
0.08 |
|
|
|
0.13 |
0.13 |
0.14 |