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 |
1993.05.12 |
1993.05.12 |
1993.05.12 |
1993.07.14 |
1993.07.14 |
1993.07.14 |
1993.09.08 |
1993.09.08 |
1993.09.08 |
1993.11.17 |
1993.11.17 |
1993.11.17 |
1994.01.19 |
1994.03.09 |
採取時刻 |
0953 |
1059 |
1143 |
1005 |
1112 |
1156 |
1021 |
1143 |
1220 |
1030 |
1142 |
1159 |
0950 |
1002 |
天候 |
晴れ |
晴れ |
晴れ |
雨 |
雨 |
雨 |
雨 |
雨 |
雨 |
晴れ |
晴れ |
晴れ |
雪 |
曇り |
気温 (℃) |
16.0 |
14.5 |
14.5 |
17.5 |
17.0 |
17.0 |
18.0 |
18.0 |
18.0 |
12.5 |
14.0 |
14.0 |
-2.0 |
0.5 |
水温 (℃) |
6.6 |
5.8 |
5.4 |
17.3 |
13.0 |
7.6 |
16.0 |
12.9 |
8.0 |
9.5 |
8.9 |
7.3 |
1.0 |
2.0 |
採取水深 (m) |
0.5 |
15.0 |
30.0 |
0.5 |
10.0 |
24.0 |
0.5 |
15.0 |
22.0 |
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 |
23.6 |
23.6 |
23.6 |
31.0 |
31.0 |
31.0 |
28.0 |
19.0 |
透明度 (m) |
0.800 |
|
|
3.300 |
|
|
2.300 |
|
|
0.500 |
|
|
|
|
pH |
7.1 |
7.1 |
7.1 |
7.6 |
7.1 |
6.7 |
7.5 |
7.2 |
7.1 |
7.2 |
7.3 |
7.3 |
7.1 |
7.1 |
DO (mg/l) |
11 |
10 |
11 |
9 |
7.4 |
5.9 |
9 |
8.2 |
1.8 |
10 |
10 |
10 |
12 |
11 |
BOD (mg/l) |
0.8 |
0.5 |
0.6 |
0.6 |
0.5 |
0.6 |
< 0.5 |
< 0.5 |
0.6 |
0.6 |
< 0.5 |
< 0.5 |
0.6 |
0.6 |
COD (mg/l) |
2 |
1.9 |
1.6 |
1.4 |
1.8 |
3.3 |
3.1 |
1.9 |
2.3 |
2.2 |
1.7 |
1 |
0.8 |
0.6 |
SS (mg/l) |
15 |
21 |
9 |
1 |
3 |
17 |
2 |
10 |
24 |
16 |
10 |
10 |
1 |
2 |
大腸菌群数 (MPN/100ml) |
5.0E+00 |
5.0E+00 |
2.0E+00 |
1.7E+02 |
1.3E+01 |
0.0E+00 |
2.2E+02 |
4.9E+01 |
4.9E+01 |
2.3E+01 |
4.9E+01 |
8.0E+00 |
2.0E+00 |
0.0E+00 |
全窒素 (mg/l) |
0.37 |
|
|
0.15 |
|
|
0.47 |
|
|
0.55 |
|
|
0.18 |
0.33 |
全燐 (mg/l) |
0.012 |
|
|
0.004 |
|
|
0.016 |
|
|
0.014 |
|
|
0.003 |
0.033 |
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 |
|
N |
|
|
N |
|
|
N |
|
|
N |
|
|
N |
N |
鉛 (mg/l) |
< 0.01 |
|
|
< 0.01 |
|
|
< 0.01 |
|
|
< 0.01 |
|
|
< 0.01 |
< 0.01 |
六価クロム (mg/l) |
< 0.04 |
|
|
< 0.04 |
|
|
< 0.04 |
|
|
< 0.04 |
|
|
< 0.04 |
< 0.04 |
砒素 (mg/l) |
< 0.01 |
|
|
< 0.01 |
|
|
< 0.01 |
|
|
< 0.01 |
|
|
< 0.01 |
< 0.01 |
総水銀 (mg/l) |
< 0 |
|
|
< 0 |
|
|
< 0 |
|
|
< 0 |
|
|
< 0 |
< 0 |