測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 02201 |
豊沢川中流 |
新渕橋 |
A |
測定結果
| 採取年月日 |
1993.04.07 |
1993.05.12 |
1993.06.02 |
1993.07.07 |
1993.08.04 |
1993.09.01 |
1993.10.06 |
1993.11.24 |
1993.12.08 |
1994.01.05 |
1994.02.02 |
1994.03.02 |
| 採取時刻 |
0935 |
0955 |
0940 |
0930 |
0930 |
0935 |
0935 |
0945 |
1000 |
0955 |
1145 |
0920 |
| 天候 |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
晴れ |
雪 |
晴れ |
雪 |
曇り |
晴れ |
| 気温 (℃) |
10.8 |
24.7 |
22.0 |
17.0 |
22.0 |
25.0 |
17.8 |
1.0 |
2.0 |
-3.0 |
1.0 |
4.0 |
| 水温 (℃) |
6.5 |
13.6 |
17.0 |
17.0 |
15.1 |
17.9 |
12.6 |
5.6 |
4.8 |
0.3 |
1.6 |
4.6 |
| pH |
7.2 |
7 |
7.7 |
7.2 |
7.1 |
7 |
7.7 |
7.3 |
7.1 |
7.5 |
7.2 |
7.4 |
| DO (mg/l) |
12 |
10 |
11 |
8.9 |
9.6 |
9.3 |
10 |
12 |
12 |
14 |
13 |
13 |
| BOD (mg/l) |
< 0.5 |
0.7 |
1.7 |
0.5 |
< 0.5 |
0.6 |
0.6 |
< 0.5 |
< 0.5 |
0.8 |
0.7 |
0.6 |
| SS (mg/l) |
12 |
7 |
3 |
1 |
2 |
4 |
4 |
2 |
2 |
< 1 |
37 |
< 1 |
| 大腸菌群数 (MPN/100ml) |
3.3E+02 |
2.2E+03 |
1.4E+04 |
4.9E+03 |
7.9E+02 |
4.6E+03 |
3.3E+03 |
3.3E+03 |
3.3E+03 |
4.9E+03 |
3.3E+03 |
2.3E+03 |
| カドミウム (mg/l) |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
| |
|
N |
|
|
|
|
|
|
|
|
|
|
| 鉛 (mg/l) |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
| 砒素 (mg/l) |
|
< 0.01 |
|
|
|
0.02 |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
| 総水銀 (mg/l) |
|
< 0 |
|
< 0 |
|
< 0 |
|
< 0 |
|
< 0 |
|
< 0 |
| アルキル水銀 (mg/l) |
|
N |
|
N |
|
N |
|
N |
|
N |
|
N |
| 銅 (mg/l) |
|
< 0.1 |
|
< 0.1 |
|
< 0.1 |
|
< 0.1 |
|
< 0.1 |
|
< 0.1 |
| 亜鉛 (mg/l) |
|
< 0.1 |
|
0.1 |
|
0.1 |
|
< 0.1 |
|
< 0.1 |
|
|