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 |
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 |
1992.11.11 |
1992.11.11 |
1992.11.11 |
1993.01.20 |
1993.01.20 |
1993.01.20 |
1993.03.10 |
1993.03.10 |
1993.03.10 |
採取時刻 |
0924 |
1021 |
1109 |
0933 |
1023 |
1100 |
0918 |
1017 |
1053 |
0921 |
1005 |
1045 |
1038 |
1130 |
1157 |
1012 |
1056 |
1120 |
天候 |
2 |
2 |
2 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
雪 |
雪 |
雪 |
4 |
4 |
4 |
気温 (℃) |
18.6 |
27.2 |
27.3 |
24.2 |
27.2 |
28.8 |
19.2 |
22.0 |
22.3 |
8.6 |
8.6 |
8.6 |
2.3 |
1.3 |
1.3 |
7.0 |
5.4 |
4.6 |
水温 (℃) |
16.2 |
5.9 |
4.5 |
25.9 |
5.5 |
4.6 |
22.5 |
5.0 |
4.8 |
11.4 |
9.8 |
4.6 |
3.9 |
4.3 |
4.2 |
3.6 |
3.8 |
4.3 |
採取水深 (m) |
0.5 |
26.0 |
51.0 |
0.5 |
23.0 |
45.0 |
0.5 |
22.0 |
43.0 |
0.5 |
27.0 |
53.0 |
0.5 |
26.0 |
52.0 |
0.5 |
21.0 |
41.0 |
全水深 (m) |
52.0 |
52.0 |
52.0 |
46.0 |
46.0 |
46.0 |
44.0 |
44.0 |
44.0 |
54.0 |
54.0 |
54.0 |
53.0 |
53.0 |
53.0 |
42.0 |
42.0 |
42.0 |
透明度 (m) |
2.000 |
|
|
2.000 |
|
|
3.000 |
|
|
4.000 |
|
|
3.000 |
|
|
2.000 |
|
|
pH |
8.8 |
7.2 |
7 |
9.4 |
7.1 |
6.9 |
9 |
7 |
6.9 |
7.5 |
7.1 |
6.8 |
7.6 |
7.6 |
7.5 |
7.3 |
7.2 |
7.2 |
DO (mg/l) |
11 |
10 |
8.2 |
9.6 |
8.7 |
4.3 |
8.8 |
8.4 |
0 |
9.7 |
8 |
2.4 |
10 |
10 |
11 |
11 |
10 |
9.8 |
BOD (mg/l) |
1.2 |
0.5 |
0.6 |
1.1 |
0.7 |
0.5 |
1 |
0.7 |
1.4 |
0.7 |
0.6 |
0.7 |
0.7 |
0.9 |
0.9 |
0.7 |
0.7 |
0.8 |
COD (mg/l) |
2.4 |
1.4 |
1.1 |
3 |
1.2 |
1.7 |
2.7 |
1.3 |
3 |
2 |
1.7 |
2.1 |
1.9 |
1.7 |
1.7 |
1.3 |
1.3 |
1.7 |
SS (mg/l) |
1 |
1 |
1 |
6 |
1 |
1 |
1 |
1 |
2 |
1 |
1 |
5 |
1 |
1 |
1 |
1 |
2 |
4 |
大腸菌群数 (MPN/100ml) |
2.00E+00 |
2.00E+00 |
2.00E+00 |
5.00E+00 |
8.00E+00 |
2.00E+00 |
0.00E+00 |
1.30E+01 |
1.30E+01 |
4.90E+01 |
4.90E+01 |
5.00E+00 |
5.00E+00 |
5.00E+00 |
5.00E+00 |
2.00E+00 |
5.00E+00 |
2.30E+01 |
全窒素 (mg/l) |
0.47 |
0.58 |
0.61 |
0.39 |
0.58 |
0.85 |
0.39 |
0.59 |
1.14 |
0.49 |
0.47 |
1 |
0.6 |
0.6 |
0.59 |
0.65 |
0.65 |
0.76 |
全燐 (mg/l) |
0.012 |
0.009 |
0.007 |
0.009 |
0.008 |
0.024 |
0.013 |
0.005 |
0.022 |
0.008 |
0.012 |
0.017 |
0.008 |
0.008 |
0.01 |
0.01 |
0.012 |
0.017 |
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 |
|
|