測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
50301 |
田瀬ダム貯水池 |
L‐5(ダムサイト) |
A |
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 |
1990.09.17 |
1990.09.17 |
1990.09.17 |
1990.11.26 |
1990.11.26 |
1990.11.26 |
1991.01.16 |
1991.01.16 |
1991.01.16 |
1991.03.06 |
1991.03.06 |
1991.03.06 |
採取時刻 |
0905 |
0952 |
1023 |
0930 |
1032 |
1114 |
0947 |
1040 |
1122 |
1023 |
1138 |
1203 |
0934 |
1030 |
1056 |
0950 |
1032 |
1103 |
天候 |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
雨 |
雨 |
雨 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
気温 (℃) |
12.5 |
13.9 |
13.2 |
21.8 |
23.3 |
24.8 |
22.6 |
22.8 |
23.8 |
8.2 |
8.8 |
8.7 |
1 |
0.8 |
0.9 |
7.3 |
11.6 |
12.5 |
水温 (℃) |
16.1 |
6.9 |
4.6 |
22.8 |
11.2 |
4.7 |
20.5 |
16.2 |
3.4 |
9.5 |
8.2 |
5.2 |
4.7 |
4.7 |
4.5 |
2.7 |
4 |
3.3 |
流量 (m3/s) |
18.7 |
|
|
26.0 |
|
|
26.4 |
|
|
49.2 |
|
|
0.9 |
|
|
14.3 |
|
|
採取水深 (m) |
0.5 |
25.7 |
50 |
0.5 |
23 |
45 |
0.5 |
22.5 |
44 |
0.5 |
30.3 |
59.5 |
0.5 |
29 |
57 |
0.5 |
24.8 |
48.5 |
全水深 (m) |
51.4 |
51.4 |
51.4 |
46.0 |
46.0 |
46.0 |
45.0 |
45.0 |
45.0 |
60.5 |
60.5 |
60.5 |
58.0 |
58.0 |
58.0 |
49.5 |
49.5 |
49.5 |
pH |
9.6 |
7.2 |
7 |
9.9 |
7.1 |
6.8 |
8.7 |
7.3 |
7.2 |
7.3 |
7.2 |
6.8 |
7.2 |
7.2 |
7.2 |
7.2 |
7.1 |
7 |
DO (mg/l) |
11 |
7.6 |
7.3 |
11.1 |
7.1 |
5.3 |
7.3 |
6.2 |
2.4 |
9.1 |
8.3 |
3.6 |
11 |
11.1 |
10.9 |
12.1 |
9.5 |
8.4 |
BOD (mg/l) |
3.1 |
0.5 |
< 0.5 |
2.2 |
0.7 |
0.9 |
1.3 |
0.6 |
< 0.5 |
< 0.5 |
0.5 |
0.6 |
< 0.5 |
< 0.5 |
0.5 |
0.6 |
0.5 |
0.6 |
COD (mg/l) |
3.9 |
2 |
1.5 |
4.8 |
3.1 |
1.9 |
3.9 |
2.7 |
2.1 |
2.4 |
1.9 |
2.5 |
1.6 |
1.6 |
1.9 |
1.3 |
1.4 |
2 |
SS (mg/l) |
4 |
1 |
1 |
11 |
2 |
1 |
1 |
2 |
2 |
2 |
2 |
8 |
1 |
1 |
4 |
2 |
1 |
5 |
大腸菌群数 (MPN/100ml) |
5.0E+00 |
2.3E+01 |
2.0E+00 |
5.0E+00 |
1.7E+02 |
3.3E+01 |
2.3E+01 |
2.3E+01 |
4.9E+01 |
1.3E+02 |
3.3E+01 |
2.4E+02 |
8.0E+00 |
2.3E+01 |
2.3E+01 |
8.0E+00 |
5.0E+00 |
2.3E+01 |
全窒素 (mg/l) |
0.59 |
0.69 |
1.12 |
0.69 |
0.8 |
1.13 |
0.72 |
0.78 |
1.13 |
0.65 |
0.72 |
0.89 |
0.51 |
0.53 |
0.55 |
0.56 |
0.56 |
0.7 |
全燐 (mg/l) |
0.02 |
0.015 |
0.014 |
0.021 |
0.015 |
0.016 |
0.015 |
0.024 |
0.021 |
0.022 |
0.02 |
0.03 |
0.011 |
0.011 |
0.016 |
0.01 |
0.01 |
0.021 |
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) |
< 0.0005 |
|
|
< 0.0005 |
|
|
< 0.0005 |
|
|
< 0.0005 |
|
|
< 0.0005 |
|
|
< 0.0005 |
|
|