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 |
1990.05.16 |
1990.05.16 |
1990.05.16 |
1990.07.11 |
1990.07.11 |
1990.07.11 |
1990.09.28 |
1990.09.28 |
1990.09.28 |
1990.11.26 |
1990.11.26 |
1990.11.26 |
1991.01.16 |
1991.02.13 |
1991.03.06 |
採取時刻 |
0940 |
1022 |
1050 |
1005 |
1051 |
1115 |
1113 |
1200 |
1230 |
1037 |
1430 |
1510 |
1030 |
1015 |
0920 |
天候 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
雪 |
晴れ |
晴れ |
気温 (℃) |
10 |
9.1 |
9 |
20 |
20 |
20 |
12 |
12 |
11 |
2 |
4 |
5 |
-7 |
-3 |
2 |
水温 (℃) |
10.1 |
7 |
6.2 |
16.6 |
7.6 |
6.4 |
15.4 |
14.6 |
14.6 |
7.4 |
7.2 |
7.2 |
1 |
1 |
1 |
流量 (m3/s) |
10.0 |
|
|
5.7 |
|
|
3.6 |
|
|
7.3 |
|
|
3.8 |
7.4 |
7.5 |
採取水深 (m) |
0.5 |
16 |
29.9 |
0.5 |
15 |
24.9 |
0.5 |
10 |
17 |
0.5 |
15 |
24.3 |
0.5 |
0.5 |
0.5 |
全水深 (m) |
30.9 |
30.6 |
30.9 |
25.9 |
25.9 |
25.9 |
19.0 |
19.0 |
19.0 |
25.3 |
25.3 |
25.3 |
28.5 |
25.3 |
21.9 |
pH |
7.2 |
7.1 |
7.2 |
7.7 |
7.1 |
6.9 |
7.7 |
7.1 |
7 |
7.2 |
7.2 |
7.1 |
3 |
4 |
6 |
DO (mg/l) |
10.2 |
9.5 |
9.1 |
8.7 |
8.4 |
7.3 |
8.5 |
7.8 |
7.1 |
10.5 |
9.8 |
10 |
11.8 |
12.3 |
10.2 |
BOD (mg/l) |
< 0.5 |
< 0.5 |
< 0.5 |
0.7 |
< 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 |
1.5 |
1.6 |
1.3 |
1.7 |
1.8 |
7.4 |
8.4 |
1.1 |
1.1 |
3.2 |
0.5 |
0.6 |
1.2 |
SS (mg/l) |
3 |
4 |
12 |
2 |
4 |
11 |
22 |
306 |
468 |
6 |
9 |
52 |
< 1 |
1 |
6 |
大腸菌群数 (MPN/100ml) |
2.0E+00 |
2.0E+00 |
2.0E+00 |
2.3E+01 |
8.0E+00 |
5.0E+00 |
1.1E+03 |
4.9E+02 |
1.3E+03 |
2.3E+01 |
2.7E+01 |
1.1E+01 |
2.0E+00 |
2.0E+00 |
-.0E+01 |
全窒素 (mg/l) |
0.18 |
|
|
0.47 |
|
|
0.24 |
|
|
0.16 |
|
|
0.12 |
|
0.24 |
全燐 (mg/l) |
0.006 |
|
|
0.006 |
|
|
0.02 |
|
|
0.008 |
|
|
0.003 |
|
0.007 |
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 |
砒素 (mg/l) |
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
< 0.02 |
|
< 0.02 |
総水銀 (mg/l) |
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
< 0.0005 |