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 |
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 |
1992.01.22 |
1992.01.22 |
1992.03.09 |
1992.03.09 |
1992.03.09 |
採取時刻 |
0910 |
1005 |
1030 |
0940 |
1026 |
1055 |
0929 |
1014 |
1045 |
0935 |
1020 |
1058 |
0941 |
1044 |
1125 |
0936 |
1017 |
1041 |
天候 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
雨 |
雨 |
雨 |
雨 |
雨 |
雨 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
気温 (℃) |
21.5 |
23.1 |
23.0 |
28.5 |
29.3 |
29.8 |
18.8 |
19.6 |
19.1 |
7.0 |
10.5 |
8.4 |
0.8 |
3.4 |
9.7 |
6.8 |
9.5 |
10.1 |
水温 (℃) |
16.6 |
5.6 |
4.3 |
24.0 |
15.5 |
4.1 |
23.6 |
16.0 |
4.8 |
11.6 |
10.1 |
5.1 |
2.2 |
3.0 |
3.5 |
2.5 |
3.7 |
3.9 |
流量 (m3/s) |
4.50 |
|
|
44.70 |
|
|
27.35 |
|
|
34.51 |
|
|
19.48 |
|
|
16.33 |
|
|
採取水深 (m) |
0.5 |
25.7 |
50.3 |
0.5 |
23.4 |
45.8 |
0.5 |
23.0 |
45.0 |
0.5 |
29.3 |
57.6 |
0.5 |
21.1 |
41.2 |
0.5 |
20.6 |
40.1 |
全水深 (m) |
51.3 |
51.3 |
51.3 |
46.8 |
46.8 |
46.8 |
46.0 |
46.0 |
46.0 |
58.6 |
58.6 |
58.6 |
42.2 |
42.2 |
42.2 |
41.1 |
41.1 |
41.1 |
pH |
7.7 |
7.4 |
7.2 |
9.8 |
7.4 |
6.8 |
9.9 |
7.1 |
7 |
7.2 |
7.2 |
7 |
7.3 |
7.2 |
7.1 |
7.3 |
7 |
6.9 |
DO (mg/l) |
10 |
10 |
8.2 |
10 |
8.7 |
5.3 |
9.3 |
6.2 |
3.9 |
9.5 |
9.4 |
1.2 |
11 |
10 |
10 |
12 |
9.2 |
6.3 |
BOD (mg/l) |
0.6 |
< 0.5 |
< 0.5 |
1.2 |
0.5 |
< 0.5 |
2.2 |
0.9 |
1 |
0.6 |
0.5 |
0.8 |
0.7 |
0.7 |
0.7 |
0.9 |
0.8 |
0.7 |
COD (mg/l) |
1.7 |
1.4 |
1.5 |
5 |
2.9 |
1.1 |
5.1 |
2 |
3.3 |
1.9 |
1.6 |
2.4 |
1.4 |
1.4 |
1.6 |
1.4 |
1.3 |
1.5 |
SS (mg/l) |
< 1 |
1 |
1 |
4 |
5 |
1 |
3 |
1 |
1 |
1 |
1 |
5 |
1 |
1 |
4 |
1 |
1 |
3 |
大腸菌群数 (MPN/100ml) |
2.0E+00 |
2.3E+01 |
8.0E+00 |
2.3E+01 |
2.2E+02 |
1.1E+01 |
2.0E+00 |
3.3E+02 |
3.3E+02 |
2.3E+01 |
2.3E+01 |
3.3E+01 |
5.0E+00 |
5.0E+00 |
2.0E+00 |
1.3E+01 |
2.0E+00 |
2.0E+00 |
全窒素 (mg/l) |
0.51 |
0.51 |
0.67 |
0.35 |
0.74 |
0.64 |
0.3 |
0.61 |
1.45 |
0.69 |
0.66 |
1.25 |
0.54 |
0.53 |
0.6 |
0.59 |
0.58 |
0.78 |
全燐 (mg/l) |
0.006 |
0.007 |
0.011 |
0.012 |
0.041 |
0.011 |
0.016 |
0.016 |
0.022 |
0.026 |
0.019 |
0.024 |
0.009 |
0.009 |
0.016 |
0.012 |
0.009 |
0.019 |
カドミウム (mg/l) |
|
|
|
< 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 |
|
|