測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
02301 |
豊沢川下流 |
桜橋 |
A |
測定結果
採取年月日 |
1990.04.11 |
1990.05.09 |
1990.06.06 |
1990.07.18 |
1990.08.08 |
1990.09.04 |
1990.09.04 |
1990.09.04 |
1990.09.04 |
1990.09.04 |
1990.09.04 |
1990.09.04 |
1990.09.04 |
1990.09.05 |
1990.09.05 |
1990.09.05 |
1990.09.05 |
1990.09.05 |
1990.10.03 |
1990.11.14 |
1990.12.12 |
1991.01.16 |
1991.02.13 |
1991.03.06 |
採取時刻 |
1115 |
1203 |
1020 |
0930 |
1035 |
0900 |
1100 |
1300 |
1500 |
1730 |
1910 |
2100 |
2300 |
0100 |
0300 |
0500 |
0700 |
0900 |
1020 |
1315 |
1000 |
1220 |
1050 |
0940 |
天候 |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
一時雪 |
晴れ |
晴れ |
気温 (℃) |
16 |
21 |
20 |
25 |
28 |
24.5 |
29 |
28.5 |
29.5 |
25 |
21.5 |
21.5 |
19.5 |
17 |
17 |
17 |
21.5 |
24 |
18 |
16 |
10 |
1 |
3 |
10 |
水温 (℃) |
10 |
16.7 |
19 |
18.1 |
24.8 |
21.7 |
23.8 |
24.8 |
24.3 |
22 |
20.9 |
20.3 |
19.6 |
19 |
19 |
19 |
19 |
20 |
16.6 |
11.8 |
8.9 |
5.2 |
3.7 |
4.7 |
pH |
6.2 |
6 |
6.9 |
6.6 |
7.2 |
7.1 |
7.2 |
7.3 |
7.2 |
7.2 |
7.2 |
7.2 |
7.2 |
7.3 |
7.3 |
7.3 |
7.3 |
7.4 |
6.9 |
6.6 |
6.4 |
7 |
7.4 |
6.7 |
DO (mg/l) |
10 |
9.9 |
10 |
9.3 |
8.1 |
8.5 |
8.4 |
8.2 |
8.4 |
8 |
8.1 |
8.1 |
8.6 |
8.5 |
8.9 |
9.1 |
9.4 |
8.9 |
9.4 |
10 |
9.2 |
14 |
13 |
12 |
BOD (mg/l) |
2.6 |
2.4 |
3.8 |
1.2 |
2.6 |
1.9 |
2.2 |
1.7 |
2.9 |
2.2 |
1.8 |
2.7 |
1.9 |
3.7 |
4 |
2 |
2.3 |
2.1 |
1.3 |
0.9 |
1.7 |
3.2 |
3.7 |
2.3 |
COD (mg/l) |
|
|
|
|
|
3.8 |
3.7 |
4.1 |
3.8 |
3.6 |
3 |
3.7 |
3 |
5.3 |
5.4 |
4.3 |
3.4 |
3.2 |
|
|
|
|
|
|
SS (mg/l) |
3 |
21 |
7 |
22 |
11 |
8 |
6 |
7 |
5 |
6 |
4 |
6 |
3 |
13 |
11 |
4 |
6 |
6 |
3 |
5 |
2 |
8 |
25 |
5 |
大腸菌群数 (MPN/100ml) |
1.3E+05 |
2.2E+04 |
1.3E+05 |
4.9E+04 |
1.5E+05 |
|
|
1.8E+05 |
|
|
3.3E+04 |
|
|
1.4E+05 |
|
|
1.6E+06 |
|
1.4E+05 |
1.4E+05 |
1.3E+05 |
4.9E+04 |
1.7E+05 |
7.9E+03 |
全窒素 (mg/l) |
|
2.2 |
|
0.44 |
|
|
0.74 |
|
0.78 |
|
0.82 |
|
1.1 |
|
1.1 |
|
0.72 |
|
|
0.52 |
|
1.6 |
|
1.4 |
全燐 (mg/l) |
|
0.24 |
|
0.023 |
|
|
0.13 |
|
0.073 |
|
0.15 |
|
0.16 |
|
0.2 |
|
0.1 |
|
|
0.07 |
|
0.083 |
|
0.052 |
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
トリクロロエチレン (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
テトラクロロエチレン (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|