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 |
1989.04.12 |
1989.05.10 |
1989.06.14 |
1989.07.05 |
1989.08.02 |
1989.08.22 |
1989.08.22 |
1989.08.22 |
1989.08.22 |
1989.08.22 |
1989.08.22 |
1989.08.22 |
1989.08.22 |
1989.08.23 |
1989.08.23 |
1989.08.23 |
1989.08.23 |
1989.08.23 |
1989.09.20 |
1989.10.04 |
1989.11.15 |
1989.12.06 |
1990.01.24 |
1990.02.14 |
1990.03.07 |
| 採取時刻 |
1015 |
1220 |
1015 |
1145 |
1100 |
0900 |
1100 |
1300 |
1500 |
1700 |
1900 |
2100 |
2300 |
0100 |
0300 |
0500 |
0700 |
0900 |
1005 |
1110 |
1230 |
1110 |
1315 |
1135 |
1145 |
| 天候 |
曇り |
晴れ |
快晴 |
曇り |
雨 |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
雨 |
晴れ |
晴れ |
雪 |
曇り |
曇り |
| 気温 (℃) |
7 |
18 |
19.5 |
24 |
28 |
25 |
30 |
30 |
30.5 |
28 |
27 |
26 |
24 |
23 |
24 |
23 |
23.5 |
24.5 |
26.5 |
16 |
11 |
3 |
2 |
4.5 |
3 |
| 水温 (℃) |
8 |
18.5 |
20.3 |
21.7 |
23 |
24 |
26 |
28 |
27.5 |
26 |
25 |
24 |
23 |
22 |
22 |
22 |
21.8 |
22.2 |
18 |
14.7 |
11 |
7.5 |
0.4 |
5.7 |
6.3 |
| pH |
6.8 |
7.6 |
7.3 |
7.2 |
6.9 |
7.5 |
7.5 |
7.8 |
7.6 |
7.5 |
7.3 |
7.3 |
7.3 |
7.4 |
7.4 |
7.3 |
7.4 |
7.5 |
7.3 |
7.4 |
7.5 |
7.3 |
7.4 |
7.7 |
7.4 |
| DO (mg/l) |
11 |
9.5 |
8.7 |
8.6 |
6.9 |
9.2 |
8.4 |
8.4 |
8 |
7.7 |
7.1 |
7.3 |
7.5 |
7.9 |
7.8 |
8.1 |
8.4 |
8.5 |
9.3 |
10 |
11 |
11 |
13 |
12 |
12 |
| BOD (mg/l) |
1.8 |
4.3 |
3 |
2.9 |
6.2 |
2.3 |
3.2 |
3.4 |
2.9 |
2.7 |
2.9 |
2.5 |
2.8 |
2 |
1.7 |
1.5 |
1.8 |
2.8 |
1 |
3.4 |
2.7 |
2.2 |
5.6 |
2.9 |
4.9 |
| COD (mg/l) |
|
|
|
|
|
4.3 |
5.3 |
5 |
5.3 |
5.9 |
5.1 |
5 |
4.7 |
4 |
3.7 |
4 |
3.9 |
4.6 |
|
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|
|
|
|
| SS (mg/l) |
2 |
15 |
6 |
3 |
2 |
8 |
13 |
9 |
12 |
21 |
8 |
11 |
9 |
9 |
10 |
15 |
12 |
11 |
6 |
4 |
6 |
10 |
3 |
1 |
3 |
| 大腸菌群数 (MPN/100ml) |
1.3E+04 |
3.5E+05 |
1.6E+06 |
9.2E+05 |
2.4E+06 |
|
|
1.4E+07 |
|
|
1.1E+06 |
|
|
7.9E+05 |
|
|
2.2E+05 |
|
3.3E+05 |
3.3E+05 |
4.9E+04 |
7.0E+04 |
2.3E+04 |
3.3E+04 |
2.3E+04 |
| |
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N |
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