測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
02451 |
和賀川上流 |
槻沢 |
AA |
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 |
1030 |
1130 |
1025 |
1040 |
1020 |
1030 |
1010 |
1140 |
1050 |
1005 |
1030 |
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 |
14.7 |
22.8 |
24.0 |
27.0 |
22.6 |
12.0 |
9.4 |
1.5 |
-2.0 |
1.0 |
0.6 |
水温 (℃) |
7.2 |
8.1 |
13.9 |
16.0 |
28.8 |
22.5 |
17.3 |
9.8 |
4.0 |
1.6 |
3.1 |
4.6 |
pH |
7.0 |
7.1 |
7.8 |
7.2 |
7.9 |
7.1 |
7.1 |
7.4 |
6.9 |
7.2 |
7.3 |
7.4 |
DO (mg/l) |
12.0 |
11.0 |
11.0 |
10.0 |
9.9 |
9.2 |
11.0 |
12.0 |
13.0 |
13.0 |
14.0 |
13.0 |
BOD (mg/l) |
0.5 |
0.6 |
0.5 |
0.7 |
0.5 |
0.9 |
0.6 |
0.8 |
< 0.5 |
1.0 |
0.6 |
0.5 |
COD (mg/l) |
0.8 |
1.6 |
1.8 |
1.2 |
1.3 |
2.7 |
2.5 |
1.1 |
0.9 |
1.0 |
0.9 |
1.0 |
SS (mg/l) |
3 |
7 |
2 |
2 |
1 |
2 |
9 |
1 |
2 |
1 |
1 |
2 |
大腸菌群数 (MPN/100ml) |
2.4E+02 |
1.3E+02 |
2.4E+03 |
7.0E+00 |
3.3E+03 |
4.9E+02 |
2.4E+03 |
3.3E+02 |
1.3E+02 |
4.9E+02 |
1.3E+03 |
3.3E+02 |
全窒素 (mg/l) |
|
0.30 |
|
0.44 |
|
0.37 |
|
0.63 |
|
0.75 |
|
0.33 |
全燐 (mg/l) |
|
0.021 |
|
0.030 |
|
0.018 |
|
0.008 |
|
0.013 |
|
0.008 |
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 |
透視度 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
|
|
|
|
|
|