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 |
1991.05.15 |
1991.05.15 |
1991.05.15 |
1991.07.26 |
1991.07.26 |
1991.07.26 |
1991.09.11 |
1991.09.11 |
1991.09.11 |
1991.11.13 |
1991.11.13 |
1991.11.13 |
1992.01.22 |
1992.03.09 |
採取時刻 |
1005 |
1108 |
1138 |
0945 |
1040 |
1103 |
0928 |
1000 |
1040 |
1028 |
1110 |
1136 |
0930 |
0900 |
天候 |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
雨 |
雨 |
雨 |
雨 |
雨 |
晴れ |
晴れ |
気温 (℃) |
15.0 |
14.0 |
13.0 |
29.0 |
29.5 |
29.0 |
18.2 |
17.0 |
16.0 |
5.0 |
5.0 |
5.0 |
2.0 |
3.0 |
水温 (℃) |
9.8 |
7.4 |
6.4 |
16.8 |
11.9 |
6.7 |
18.2 |
13.5 |
8.5 |
7.0 |
6.9 |
6.5 |
1.0 |
1.0 |
流量 (m3/s) |
16.82 |
|
|
15.14 |
|
|
6.83 |
|
|
10.00 |
|
|
4.23 |
4.85 |
採取水深 (m) |
0.5 |
15.0 |
31.0 |
0.5 |
15.0 |
23.4 |
0.5 |
15.0 |
18.5 |
0.5 |
15.0 |
22.8 |
0.5 |
0.5 |
全水深 (m) |
32.0 |
32.0 |
32.0 |
24.4 |
24.4 |
24.4 |
19.5 |
19.5 |
19.5 |
23.8 |
23.8 |
23.8 |
26.7 |
19.7 |
透明度 (m) |
2.000 |
|
|
1.400 |
|
|
0.600 |
|
|
4.000 |
|
|
3.200 |
3.500 |
pH |
7.4 |
7.3 |
7.1 |
7.5 |
7 |
6.6 |
7.1 |
6.8 |
6.6 |
7.4 |
7.3 |
7.2 |
7.3 |
7 |
DO (mg/l) |
11 |
11 |
10 |
9 |
6.7 |
6.5 |
6.8 |
4.9 |
3.1 |
11 |
11 |
11 |
13 |
12 |
BOD (mg/l) |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.6 |
0.8 |
0.6 |
0.5 |
0.8 |
< 0.5 |
< 0.5 |
0.5 |
0.6 |
< 0.5 |
COD (mg/l) |
1.2 |
1 |
1 |
1.1 |
2.1 |
2 |
2.1 |
2.1 |
2.3 |
1 |
0.9 |
0.9 |
0.7 |
1 |
SS (mg/l) |
2 |
3 |
7 |
3 |
21 |
22 |
11 |
16 |
13 |
2 |
1 |
3 |
2 |
1 |
大腸菌群数 (MPN/100ml) |
2.0E+00 |
8.0E+00 |
2.0E+00 |
2.0E+00 |
1.7E+02 |
1.3E+02 |
1.7E+03 |
1.8E+02 |
1.1E+02 |
4.9E+01 |
3.3E+01 |
3.3E+01 |
2.0E+00 |
2.0E+00 |
全窒素 (mg/l) |
0.2 |
|
|
0.21 |
|
|
0.36 |
|
|
0.15 |
|
|
0.14 |
0.29 |
全燐 (mg/l) |
0.006 |
|
|
0.006 |
|
|
0.022 |
|
|
0.016 |
|
|
0.004 |
0.004 |
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 |