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 |
1993.04.07 |
1993.05.12 |
1993.06.08 |
1993.07.07 |
1993.08.04 |
1993.09.01 |
1993.10.20 |
1993.11.17 |
1993.12.08 |
1994.01.12 |
1994.02.02 |
1994.03.02 |
| 採取時刻 |
1030 |
1140 |
1030 |
1130 |
1030 |
1145 |
1025 |
1110 |
1030 |
1140 |
1025 |
1230 |
| 天候 |
晴れ |
晴れ |
曇り |
薄曇り |
晴れ |
薄曇り |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
| 気温 (℃) |
14.5 |
25.5 |
19.0 |
23.5 |
23.5 |
27.0 |
21.0 |
13.0 |
10.0 |
4.5 |
3.5 |
8.0 |
| 水温 (℃) |
10.0 |
12.5 |
13.6 |
17.0 |
17.5 |
16.5 |
11.5 |
11.0 |
5.2 |
3.5 |
5.7 |
6.5 |
| pH |
7.2 |
7 |
6.9 |
6.9 |
7.3 |
7.1 |
6.5 |
6.9 |
7.1 |
6.9 |
7.9 |
7.5 |
| DO (mg/l) |
13 |
11 |
11 |
10 |
9.7 |
9.8 |
10 |
11 |
12 |
13 |
10 |
13 |
| BOD (mg/l) |
1.4 |
1.6 |
1.1 |
1.2 |
0.8 |
1 |
0.7 |
0.9 |
0.7 |
1.1 |
< 0.5 |
1 |
| SS (mg/l) |
1 |
3 |
4 |
< 1 |
5 |
4 |
1 |
1 |
2 |
3 |
1 |
6 |
| 大腸菌群数 (MPN/100ml) |
1.1E+03 |
9.2E+02 |
3.5E+03 |
9.2E+03 |
2.2E+03 |
2.2E+03 |
3.3E+02 |
3.3E+02 |
3.5E+02 |
2.4E+03 |
7.8E+01 |
3.3E+02 |
| 全窒素 (mg/l) |
|
0.39 |
|
0.53 |
|
0.45 |
|
0.49 |
|
2 |
|
1 |
| 全燐 (mg/l) |
|
0.029 |
|
0.11 |
|
0.04 |
|
0.03 |
|
0.086 |
|
0.21 |
| カドミウム (mg/l) |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
| |
|
|
N |
|
|
|
|
|
|
|
|
|
| 鉛 (mg/l) |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
| 砒素 (mg/l) |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
|
< 0.01 |
| 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) |
|
29 |
|
52 |
|
< 1 |
|
8 |
|
29 |
|
2 |
| ふっ素 (mg/l) |
|
< 0.01 |
|
< 0.01 |
|
0.012 |
|
< 0.01 |
|
0.012 |
|
0.03 |