測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 50551 |
豊沢ダム貯水池 |
Ｌ‐６ |
A |
測定結果
| 採取年月日 |
1993.05.18 |
1993.05.18 |
1993.05.18 |
1993.06.15 |
1993.06.15 |
1993.06.15 |
1993.07.20 |
1993.07.20 |
1993.07.20 |
1993.08.24 |
1993.08.24 |
1993.08.24 |
1993.09.07 |
1993.09.07 |
1993.09.07 |
1993.10.20 |
1993.10.20 |
1993.10.20 |
| 採取時刻 |
1010 |
1015 |
1020 |
1035 |
1040 |
1045 |
1035 |
1035 |
1040 |
1015 |
1020 |
1025 |
1020 |
1025 |
1030 |
1010 |
1015 |
1020 |
| 天候 |
薄曇り |
薄曇り |
薄曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
快晴 |
快晴 |
快晴 |
快晴 |
快晴 |
快晴 |
雨 |
雨 |
雨 |
| 気温 (℃) |
14.0 |
14.0 |
14.0 |
20.5 |
20.5 |
20.5 |
18.0 |
18.0 |
18.0 |
27.0 |
27.0 |
27.0 |
21.0 |
21.0 |
21.0 |
10.5 |
10.5 |
10.5 |
| 水温 (℃) |
10.6 |
7.7 |
8.2 |
9.3 |
9.5 |
18.1 |
17.5 |
8.2 |
9.4 |
20.6 |
9.8 |
10.3 |
9.8 |
9.8 |
19.3 |
9.9 |
10.0 |
10.1 |
| 採取水深 (m) |
0.0 |
25.0 |
14.0 |
22.0 |
12.0 |
0.0 |
0.0 |
20.0 |
11.0 |
0.0 |
15.0 |
8.0 |
13.0 |
7.5 |
0.0 |
4.0 |
2.2 |
0.0 |
| 全水深 (m) |
28.0 |
28.0 |
28.0 |
24.0 |
24.0 |
24.0 |
22.0 |
22.0 |
22.0 |
17.0 |
17.0 |
17.0 |
15.0 |
15.0 |
15.0 |
4.5 |
4.5 |
4.5 |
| pH |
7.2 |
7 |
7 |
7 |
7 |
7.6 |
7.6 |
6.7 |
6.9 |
7.4 |
6.4 |
6.5 |
6.6 |
6.7 |
7.8 |
6.9 |
6.8 |
6.8 |
| DO (mg/l) |
11 |
11 |
11 |
10 |
10 |
10 |
10 |
9.7 |
10 |
9.7 |
8.2 |
8.7 |
7.9 |
8.5 |
9.8 |
9.9 |
9.9 |
9.8 |
| COD (mg/l) |
1.5 |
1.3 |
1.5 |
1.7 |
1.8 |
3.5 |
2.8 |
1.2 |
1.5 |
3.1 |
1.3 |
1.5 |
1.7 |
1.7 |
3.5 |
3.8 |
3.1 |
3 |
| SS (mg/l) |
2 |
1 |
1 |
1 |
2 |
5 |
2 |
< 1 |
1 |
4 |
1 |
1 |
2 |
2 |
3 |
58 |
10 |
14 |
| 大腸菌群数 (MPN/100ml) |
1.1E+01 |
|
|
|
|
4.0E+00 |
7.9E+01 |
|
|
7.0E+01 |
|
|
|
|
1.1E+02 |
|
|
4.9E+01 |
| 全窒素 (mg/l) |
0.08 |
0.18 |
|
0.29 |
|
0.21 |
0.05 |
0.13 |
|
0.12 |
0.21 |
|
0.19 |
|
0.05 |
0.23 |
|
0.25 |
| 全燐 (mg/l) |
< 0.003 |
< 0.003 |
|
< 0.003 |
|
0.009 |
0.01 |
0.003 |
|
0.014 |
0.005 |
|
0.005 |
|
0.01 |
0.009 |
|
0.009 |