測定対象
| 地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
| 00802 |
閉伊川下流 |
宮古橋 |
A |
測定結果
| 採取年月日 |
1992.04.08 |
1992.05.13 |
1992.06.03 |
1992.07.22 |
1992.08.19 |
1992.09.02 |
1992.10.07 |
1992.11.04 |
1992.12.02 |
1993.01.06 |
1993.02.03 |
1993.03.03 |
| 採取時刻 |
1125 |
1030 |
1215 |
1100 |
1125 |
1020 |
1200 |
1030 |
1120 |
1035 |
1110 |
1035 |
| 天候 |
2 |
2 |
2 |
4 |
2 |
4 |
2 |
2 |
2 |
2 |
2 |
4 |
| 気温 (℃) |
13.5 |
23.0 |
22.5 |
29.0 |
30.0 |
28.5 |
20.0 |
14.5 |
14.0 |
10.0 |
1.0 |
9.0 |
| 水温 (℃) |
6.8 |
13.5 |
15.0 |
20.0 |
23.0 |
21.5 |
13.0 |
8.8 |
6.6 |
2.8 |
3.6 |
4.8 |
| pH |
6.6 |
7.1 |
7.4 |
7.2 |
7.8 |
7.4 |
7 |
7.1 |
7.1 |
6.8 |
6.9 |
6.9 |
| DO (mg/l) |
12 |
10 |
10 |
8.9 |
8.5 |
8.6 |
10 |
10 |
12 |
12 |
8 |
13 |
| BOD (mg/l) |
0.9 |
0.8 |
< 0.5 |
0.8 |
1.6 |
0.7 |
0.9 |
0.6 |
1.8 |
< 0.5 |
0.8 |
0.5 |
| SS (mg/l) |
5 |
< 1 |
2 |
6 |
5 |
3 |
2 |
2 |
< 1 |
< 1 |
2 |
1 |
| 大腸菌群数 (MPN/100ml) |
4.90E+02 |
7.90E+02 |
1.40E+03 |
3.50E+03 |
5.40E+03 |
5.40E+03 |
4.90E+02 |
1.30E+03 |
4.90E+02 |
3.30E+02 |
3.30E+02 |
7.90E+02 |
| 全窒素 (mg/l) |
0.58 |
|
0.56 |
|
0.86 |
|
0.45 |
|
0.34 |
|
0.5 |
|
| 全燐 (mg/l) |
0.046 |
|
0.049 |
|
0.028 |
|
0.036 |
|
0.012 |
|
0.036 |
|
| カドミウム (mg/l) |
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
| |
|
|
|
N |
|
|
|
|
|
|
|
|
| 鉛 (mg/l) |
< 0.05 |
|
< 0.05 |
|
< 0.05 |
|
< 0.05 |
|
< 0.05 |
|
< 0.05 |
|
| 砒素 (mg/l) |
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
| 総水銀 (mg/l) |
|
|
|
< 0 |
|
|
|
|
|
|
|
|
| アルキル水銀 (mg/l) |
|
|
|
N |
|
|
|
|
|
|
|
|
| トリクロロエチレン (mg/l) |
|
|
< 0.002 |
|
|
< 0.002 |
|
|
|
|
|
|
| テトラクロロエチレン (mg/l) |
|
|
< 0 |
|
|
< 0 |
|
|
|
|
|
|
| マンガン(溶解性) (mg/l) |
1 |
|
2 |
|
2 |
|
1 |
|
3 |
|
1 |
|
| ふっ素 (mg/l) |
0.011 |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
|
0.01 |
|