測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 20603 |
小鬼ヶ瀬川 |
天子森 |
|
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 |
1994.10.17 |
1994.11.09 |
1994.12.14 |
1995.01.18 |
1995.02.08 |
1995.03.08 |
| 採取時刻 |
1140 |
1145 |
1200 |
1100 |
1100 |
1110 |
1140 |
1130 |
1240 |
1205 |
1105 |
1140 |
| 天候 |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
雪 |
曇り |
| 気温 (℃) |
16.0 |
15.5 |
23.4 |
25.0 |
27.8 |
22.8 |
12.3 |
11.5 |
1.5 |
-1.9 |
0.3 |
2.3 |
| 水温 (℃) |
8.1 |
8.3 |
14.5 |
19.0 |
29.0 |
22.4 |
16.8 |
8.0 |
4.2 |
1.8 |
3.5 |
4.8 |
| pH |
6.9 |
6.8 |
7.6 |
7.6 |
7.9 |
7.2 |
7.0 |
7.4 |
6.9 |
7.1 |
7.2 |
7.0 |
| DO (mg/l) |
12.0 |
9.8 |
9.2 |
9.3 |
9.2 |
9.2 |
11.0 |
12.0 |
12.0 |
13.0 |
13.0 |
12.0 |
| BOD (mg/l) |
1.3 |
0.9 |
1.0 |
0.8 |
0.5 |
< 0.5 |
0.5 |
0.5 |
0.5 |
0.7 |
< 0.5 |
0.5 |
| COD (mg/l) |
2.5 |
3.8 |
3.0 |
2.8 |
3.0 |
4.4 |
3.9 |
2.3 |
2.1 |
1.7 |
2.1 |
2.4 |
| SS (mg/l) |
7 |
7 |
2 |
1 |
4 |
6 |
11 |
1 |
2 |
4 |
4 |
5 |
| 大腸菌群数 (MPN/100ml) |
3.3E+01 |
3.3E+01 |
1.3E+01 |
1.3E+01 |
4.9E+01 |
1.1E+02 |
7.9E+01 |
1.1E+01 |
4.9E+02 |
2.3E+01 |
7.9E+01 |
1.3E+01 |
| 全窒素 (mg/l) |
|
0.26 |
|
0.32 |
|
0.25 |
|
0.57 |
|
0.57 |
|
0.27 |
| 全燐 (mg/l) |
|
0.026 |
|
0.030 |
|
0.030 |
|
0.024 |
|
0.020 |
|
0.021 |
| カドミウム (mg/l) |
|
< 0.001 |
|
0.001 |
|
< 0.001 |
|
0.001 |
|
0.002 |
|
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 |
|
0.016 |
|
0.005 |
|
0.018 |
|
0.014 |
|
0.012 |
| 総水銀 (mg/l) |
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
| 透視度 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |