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 |
1994.04.13 |
1994.05.11 |
1994.06.01 |
1994.07.06 |
1994.08.03 |
1994.09.07 |
1994.10.12 |
1994.11.16 |
1994.12.07 |
1995.01.18 |
1995.02.01 |
1995.03.01 |
採取時刻 |
1000 |
0950 |
1005 |
1005 |
1315 |
1005 |
0934 |
1010 |
0950 |
1000 |
0855 |
0945 |
天候 |
晴れ |
曇り |
晴れ |
曇り |
晴れ |
曇り |
曇り |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
気温 (℃) |
12.0 |
21.0 |
24.0 |
30.0 |
33.0 |
23.0 |
19.8 |
8.5 |
5.2 |
-3.0 |
2.0 |
3.0 |
水温 (℃) |
6.8 |
13.4 |
17.1 |
19.0 |
27.2 |
21.7 |
15.5 |
5.7 |
3.4 |
1.5 |
1.1 |
2.8 |
pH |
7.1 |
7.4 |
7.6 |
7.2 |
7.2 |
7.4 |
7.1 |
7.6 |
7.5 |
7.2 |
7.2 |
7.1 |
DO (mg/l) |
11.0 |
11.0 |
10.0 |
9.1 |
8.0 |
9.5 |
9.6 |
13.2 |
13.0 |
14.0 |
14.0 |
13.7 |
BOD (mg/l) |
< 0.5 |
1.0 |
0.6 |
0.7 |
< 0.5 |
0.9 |
0.7 |
0.6 |
< 0.5 |
0.6 |
0.6 |
1.8 |
SS (mg/l) |
6 |
3 |
2 |
8 |
5 |
2 |
80 |
9 |
2 |
1 |
1 |
< 1 |
大腸菌群数 (MPN/100ml) |
1.3E+03 |
1.7E+03 |
7.9E+02 |
4.9E+03 |
1.3E+04 |
1.3E+04 |
1.1E+04 |
1.3E+02 |
1.4E+03 |
7.9E+02 |
9.2E+02 |
4.8E+02 |
カドミウム (mg/l) |
< 0.001 |
< 0.001 |
< 0.001 |
< 0.001 |
< 0.001 |
< 0.001 |
< 0.001 |
< 0.001 |
< 0.001 |
0.002 |
< 0.001 |
< 0.001 |
鉛 (mg/l) |
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
砒素 (mg/l) |
< 0.005 |
< 0.005 |
0.007 |
0.005 |
0.006 |
0.012 |
< 0.005 |
< 0.005 |
0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
総水銀 (mg/l) |
< 0.0005 |
< 0.0005 |
< 0.0005 |
< 0.0005 |
< 0.0005 |
< 0.0005 |
< 0.0005 |
< 0.0005 |
< 0.0005 |
< 0.0005 |
< 0.0005 |
< 0.0005 |
アルキル水銀 (mg/l) |
N |
N |
N |
N |
N |
N |
N |
N |
N |
N |
N |
N |
1,3-ジクロロプロペン (mg/l) |
< 0.0002 |
< 0.0002 |
< 0.0002 |
< 0.0002 |
< 0.0002 |
< 0.0002 |
< 0.0002 |
< 0.0002 |
< 0.0002 |
< 0.0002 |
< 0.0002 |
< 0.0002 |
チウラム (mg/l) |
< 0.0006 |
< 0.0006 |
< 0.0006 |
< 0.0006 |
< 0.0006 |
< 0.0006 |
< 0.0006 |
< 0.0006 |
< 0.0006 |
< 0.0006 |
< 0.0006 |
< 0.0006 |
シマジン (mg/l) |
< 0.0003 |
< 0.0003 |
< 0.0003 |
< 0.0003 |
< 0.0003 |
< 0.0003 |
< 0.0003 |
< 0.0003 |
< 0.0003 |
< 0.0003 |
< 0.0003 |
< 0.0003 |
チオベンカルブ (mg/l) |
< 0.002 |
< 0.002 |
< 0.002 |
< 0.002 |
< 0.002 |
< 0.002 |
< 0.002 |
< 0.002 |
< 0.002 |
< 0.002 |
< 0.002 |
< 0.002 |
銅 (mg/l) |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
0.01 |
< 0.01 |
< 0.01 |
亜鉛 (mg/l) |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
0.02 |
0.01 |
EPN (mg/l) |
|
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
透視度 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
6 |
24 |
> 30 |
> 30 |
> 30 |
> 30 |