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 |
1992.05.20 |
1992.05.20 |
1992.05.20 |
1992.07.08 |
1992.07.08 |
1992.07.08 |
1992.09.09 |
1992.09.09 |
1992.09.09 |
1992.11.12 |
1992.11.12 |
1992.11.12 |
1993.01.20 |
1993.03.10 |
採取時刻 |
0920 |
1004 |
1030 |
0930 |
1022 |
1037 |
1012 |
1052 |
1123 |
0949 |
1028 |
1045 |
0940 |
0900 |
天候 |
2 |
2 |
2 |
2 |
2 |
2 |
4 |
4 |
4 |
4 |
4 |
4 |
雪 |
4 |
気温 (℃) |
16.0 |
18.0 |
19.0 |
23.0 |
24.0 |
24.0 |
20.0 |
19.0 |
19.0 |
10.5 |
10.5 |
11.0 |
1.0 |
2.0 |
水温 (℃) |
9.2 |
7.5 |
6.0 |
21.7 |
9.6 |
6.2 |
16.9 |
15.0 |
7.3 |
8.3 |
8.5 |
8.1 |
1.0 |
1.0 |
採取水深 (m) |
0.5 |
15.0 |
30.0 |
0.5 |
15.0 |
24.0 |
0.5 |
10.0 |
20.0 |
0.5 |
15.0 |
29.0 |
0.5 |
0.5 |
全水深 (m) |
31.0 |
31.0 |
31.0 |
25.0 |
25.0 |
25.0 |
21.0 |
21.0 |
21.0 |
30.0 |
30.0 |
30.0 |
28.0 |
18.0 |
透明度 (m) |
1.000 |
|
|
3.000 |
|
|
1.000 |
|
|
2.000 |
|
|
|
|
pH |
7.3 |
7.2 |
7.1 |
7.6 |
7 |
6.7 |
7.5 |
7.4 |
6.7 |
7.3 |
7.3 |
7.2 |
7 |
7.1 |
DO (mg/l) |
11 |
11 |
11 |
8.8 |
8.4 |
7.3 |
8.3 |
8.5 |
1.6 |
10 |
10 |
10 |
12 |
12 |
BOD (mg/l) |
0.5 |
< 0.5 |
< 0.5 |
0.6 |
< 0.5 |
< 0.5 |
0.9 |
0.8 |
0.5 |
< 0.5 |
0.6 |
< 0.5 |
0.7 |
0.4 |
COD (mg/l) |
1.1 |
1.2 |
1.5 |
1.5 |
1.2 |
1.6 |
2.7 |
2 |
2.4 |
1.3 |
1.2 |
1.4 |
0.8 |
0.8 |
SS (mg/l) |
4 |
6 |
11 |
1 |
2 |
4 |
6 |
7 |
10 |
1 |
2 |
3 |
1 |
1 |
大腸菌群数 (MPN/100ml) |
2.00E+00 |
0.00E+00 |
8.00E+00 |
4.90E+01 |
1.10E+01 |
1.30E+01 |
4.90E+02 |
3.30E+02 |
1.30E+02 |
1.30E+01 |
5.00E+00 |
8.00E+00 |
0.00E+00 |
0.00E+00 |
全窒素 (mg/l) |
0.24 |
|
|
0.14 |
|
|
0.26 |
|
|
0.17 |
|
|
0.25 |
0.34 |
全燐 (mg/l) |
0.007 |
|
|
0.005 |
|
|
0.012 |
|
|
0.004 |
|
|
< 0.003 |
0.003 |
カドミウム (mg/l) |
< 0.005 |
|
|
< 0.005 |
|
|
< 0.005 |
|
|
< 0.005 |
|
|
< 0.005 |
< 0.005 |
全シアン (mg/l) |
N |
|
|
N |
|
|
N |
|
|
N |
|
|
N |
N |
|
N |
|
|
N |
|
|
N |
|
|
N |
|
|
N |
N |
鉛 (mg/l) |
< 0.05 |
|
|
< 0.05 |
|
|
< 0.05 |
|
|
< 0.05 |
|
|
< 0.05 |
< 0.05 |
六価クロム (mg/l) |
< 0.02 |
|
|
< 0.02 |
|
|
< 0.02 |
|
|
< 0.02 |
|
|
< 0.02 |
< 0.02 |
砒素 (mg/l) |
< 0.02 |
|
|
< 0.02 |
|
|
< 0.02 |
|
|
< 0.02 |
|
|
< 0.02 |
< 0.02 |
総水銀 (mg/l) |
< 0 |
|
|
< 0 |
|
|
< 0 |
|
|
< 0 |
|
|
< 0 |
< 0 |