測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
05652 |
猿ヶ石川 |
落合橋 |
A |
測定結果
採取年月日 |
1994.04.25 |
1994.05.18 |
1994.06.08 |
1994.07.13 |
1994.08.17 |
1994.09.21 |
1994.10.12 |
1994.11.09 |
1994.12.14 |
1995.01.18 |
1995.02.08 |
1995.03.08 |
採取時刻 |
1015 |
1030 |
1010 |
1100 |
0940 |
1125 |
1015 |
1040 |
1020 |
1100 |
1020 |
1040 |
天候 |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
晴れ |
雪 |
曇り |
気温 (℃) |
18.0 |
18.0 |
22.5 |
27.0 |
34.0 |
21.0 |
20.0 |
21.1 |
4.0 |
0.0 |
2.0 |
6.0 |
水温 (℃) |
11.5 |
14.0 |
16.0 |
20.0 |
24.5 |
18.0 |
14.0 |
7.3 |
4.0 |
6.0 |
1.5 |
3.0 |
流量 (m3/s) |
17.95 |
23.63 |
13.05 |
7.15 |
2.27 |
28.40 |
22.88 |
11.42 |
9.89 |
6.35 |
6.35 |
5.59 |
pH |
7.5 |
7.5 |
7.9 |
7.7 |
7.8 |
7.5 |
7.4 |
7.9 |
7.4 |
7.2 |
7.4 |
7.4 |
DO (mg/l) |
11.0 |
10.0 |
11.0 |
9.7 |
8.9 |
9.5 |
10.0 |
13.0 |
13.0 |
14.0 |
14.0 |
13.0 |
BOD (mg/l) |
2.0 |
1.0 |
0.7 |
1.6 |
0.9 |
0.8 |
0.7 |
0.8 |
1.1 |
1.2 |
0.8 |
1.2 |
COD (mg/l) |
3.1 |
3.3 |
1.7 |
2.8 |
2.2 |
2.1 |
1.6 |
1.3 |
1.6 |
1.9 |
1.7 |
2.6 |
SS (mg/l) |
8 |
12 |
3 |
3 |
1 |
9 |
5 |
2 |
6 |
19 |
27 |
22 |
大腸菌群数 (MPN/100ml) |
2.4E+02 |
4.9E+02 |
4.9E+02 |
2.4E+03 |
1.1E+04 |
3.3E+03 |
3.3E+02 |
7.9E+02 |
4.9E+02 |
4.9E+02 |
4.9E+02 |
3.3E+03 |
全窒素 (mg/l) |
|
1.30 |
|
0.94 |
|
1.20 |
|
1.00 |
|
0.76 |
|
0.86 |
全燐 (mg/l) |
|
0.061 |
|
0.031 |
|
0.028 |
|
0.010 |
|
0.031 |
|
0.046 |
カドミウム (mg/l) |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
全シアン (mg/l) |
|
N |
|
N |
|
N |
|
N |
|
N |
|
N |
鉛 (mg/l) |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
六価クロム (mg/l) |
|
< 0.040 |
|
< 0.040 |
|
< 0.040 |
|
< 0.040 |
|
< 0.040 |
|
< 0.040 |
砒素 (mg/l) |
|
< 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 |
アンモニア性窒素 (mg/l) |
|
00.100 |
|
00.100 |
|
00.100 |
|
00.100 |
|
00.100 |
|
00.100 |
透視度 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |