測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 23001 |
大葛川 |
綱取ダム流入前 |
|
測定結果
| 採取年月日 |
1992.04.06 |
1992.05.11 |
1992.06.01 |
1992.07.06 |
1992.08.03 |
1992.09.07 |
1992.10.07 |
1992.11.02 |
1992.12.07 |
1993.01.06 |
1993.02.01 |
1993.03.01 |
| 採取時刻 |
1010 |
1025 |
0945 |
1005 |
1000 |
0950 |
1005 |
1000 |
1005 |
1000 |
1000 |
1005 |
| 天候 |
2 |
2 |
2 |
2 |
4 |
4 |
2 |
2 |
4 |
2 |
2 |
2 |
| 気温 (℃) |
12.2 |
15.1 |
15.1 |
21.7 |
17.8 |
16.0 |
9.6 |
4.5 |
5.0 |
0.5 |
0.0 |
1.0 |
| 水温 (℃) |
8.2 |
10.0 |
12.2 |
15.7 |
15.4 |
15.2 |
11.1 |
9.5 |
5.6 |
2.7 |
1.6 |
3.5 |
| pH |
7.3 |
7.2 |
7.2 |
7.4 |
7.2 |
7.6 |
7.4 |
7.4 |
7.4 |
7 |
7.1 |
7 |
| DO (mg/l) |
11 |
11 |
10 |
9.2 |
9.5 |
9.5 |
10 |
11 |
12 |
13 |
14 |
12 |
| BOD (mg/l) |
0.6 |
0.8 |
0.8 |
< 0.5 |
0.5 |
0.5 |
0.8 |
0.6 |
< 0.5 |
< 0.5 |
0.7 |
< 0.5 |
| COD (mg/l) |
0.8 |
1.3 |
1.3 |
1.2 |
1.4 |
1.3 |
0.5 |
1.8 |
0.7 |
0.7 |
0.8 |
1.1 |
| SS (mg/l) |
1 |
4 |
1 |
1 |
3 |
1 |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
| 大腸菌群数 (MPN/100ml) |
3.30E+03 |
3.30E+03 |
2.30E+03 |
3.30E+01 |
4.90E+03 |
2.30E+03 |
2.20E+03 |
1.70E+03 |
1.70E+03 |
4.90E+03 |
2.30E+02 |
2.30E+02 |
| 全窒素 (mg/l) |
0.82 |
1.1 |
0.7 |
0.41 |
0.43 |
0.49 |
0.47 |
0.71 |
0.51 |
0.61 |
0.43 |
0.75 |
| 全燐 (mg/l) |
0.01 |
0.022 |
0.01 |
0.004 |
0.017 |
0.01 |
0.01 |
0.008 |
0.006 |
0.008 |
0.004 |
0.006 |