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 |
1991.04.17 |
1991.05.08 |
1991.06.12 |
1991.07.03 |
1991.08.07 |
1991.09.04 |
1991.10.02 |
1991.11.13 |
1991.12.04 |
1992.01.22 |
1992.02.12 |
1992.03.04 |
| 採取時刻 |
1120 |
1010 |
1120 |
1050 |
1130 |
1010 |
1130 |
1025 |
1115 |
1100 |
1120 |
1100 |
| 天候 |
晴れ |
晴れ |
曇り |
晴れ |
雨 |
曇り |
雨 |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
| 気温 (℃) |
21.5 |
24.0 |
29.0 |
22.0 |
21.0 |
26.0 |
18.0 |
13.0 |
12.0 |
10.5 |
7.0 |
6.7 |
| 水温 (℃) |
11.0 |
14.5 |
20.0 |
18.0 |
15.5 |
18.0 |
14.0 |
10.0 |
6.5 |
5.0 |
5.0 |
5.0 |
| pH |
7.1 |
7.3 |
7.1 |
7.5 |
6.7 |
7.2 |
6.7 |
7.3 |
7 |
7.3 |
7.22 |
7.1 |
| DO (mg/l) |
11.3 |
10.3 |
9 |
10.7 |
10 |
9.8 |
10 |
12 |
12 |
13 |
12 |
14.7 |
| BOD (mg/l) |
0.8 |
< 0.5 |
< 0.5 |
1.3 |
1 |
1.4 |
1.6 |
0.6 |
2.4 |
0.7 |
< 0 |
0.8 |
| COD (mg/l) |
0 |
|
|
|
|
|
|
|
|
|
|
|
| SS (mg/l) |
< 1 |
< 1 |
2 |
2 |
2 |
1 |
3 |
1 |
1 |
2 |
6 |
4 |
| 大腸菌群数 (MPN/100ml) |
3.3E+02 |
3.5E+03 |
5.4E+03 |
5.4E+02 |
5.4E+03 |
3.5E+03 |
9.2E+03 |
2.4E+03 |
3.5E+03 |
4.9E+02 |
7.9E+02 |
1.3E+02 |
| 全窒素 (mg/l) |
0.4 |
|
0.53 |
|
0.41 |
|
0.64 |
|
0.49 |
|
2.2 |
|
| 全燐 (mg/l) |
0.03 |
|
0.11 |
|
0.017 |
|
0.033 |
|
0.028 |
|
1.3 |
|
| 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) |
|
|
< 0.0005 |
|
< 0.0005 |
|
|
|
|
|
|
|
| マンガン(溶解性) (mg/l) |
2 |
|
5 |
|
2 |
|
2 |
|
2 |
|
5 |
|
| ふっ素 (mg/l) |
0.02 |
|
0.01 |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
|
0.08 |
|