測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
01853 |
北上川(3) |
昭和橋 |
A |
測定結果
採取年月日 |
1994.04.14 |
1994.05.11 |
1994.06.01 |
1994.07.20 |
1994.08.02 |
1994.08.02 |
1994.08.02 |
1994.08.02 |
1994.09.07 |
1994.10.17 |
1994.11.02 |
1994.12.07 |
1995.01.11 |
1995.02.01 |
1995.03.01 |
採取時刻 |
1100 |
1110 |
1010 |
1030 |
0110 |
0710 |
1310 |
1910 |
1005 |
0955 |
1020 |
0940 |
1020 |
0940 |
0940 |
天候 |
曇り |
曇り |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
曇り |
曇り |
晴れ |
曇り |
気温 (℃) |
14.5 |
23.6 |
23.0 |
26.7 |
25.8 |
24.5 |
32.4 |
27.0 |
22.0 |
16.8 |
11.3 |
4.0 |
0.1 |
3.0 |
1.2 |
水温 (℃) |
8.0 |
13.8 |
16.2 |
25.2 |
26.7 |
26.2 |
28.7 |
28.2 |
22.7 |
12.0 |
10.8 |
4.9 |
2.0 |
1.1 |
2.5 |
pH |
7.3 |
7.2 |
7.2 |
7.7 |
7.4 |
7.3 |
7.8 |
7.6 |
7.6 |
7.4 |
7.6 |
7.4 |
7.2 |
7.4 |
7.3 |
DO (mg/l) |
12.0 |
10.0 |
9.3 |
8.1 |
7.3 |
7.0 |
9.0 |
8.1 |
7.7 |
9.5 |
11.0 |
12.0 |
13.0 |
14.0 |
12.0 |
BOD (mg/l) |
1.5 |
1.4 |
2.0 |
1.0 |
0.9 |
0.9 |
1.1 |
2.0 |
1.4 |
2.1 |
0.9 |
1.7 |
1.8 |
1.4 |
1.7 |
COD (mg/l) |
3.1 |
3.0 |
2.8 |
2.4 |
|
|
3.2 |
|
3.0 |
2.9 |
2.2 |
2.2 |
2.3 |
2.0 |
3.3 |
SS (mg/l) |
21 |
10 |
10 |
3 |
9 |
10 |
7 |
33 |
7 |
17 |
4 |
3 |
6 |
2 |
8 |
大腸菌群数 (MPN/100ml) |
2.4E+03 |
1.7E+03 |
3.3E+03 |
7.9E+03 |
7.9E+02 |
4.9E+02 |
3.3E+02 |
2.4E+04 |
1.3E+05 |
7.9E+04 |
7.0E+02 |
1.3E+04 |
3.3E+04 |
2.4E+03 |
4.9E+02 |
全窒素 (mg/l) |
|
1.30 |
|
1.30 |
|
|
|
|
1.50 |
|
1.20 |
|
1.60 |
|
1.90 |
全燐 (mg/l) |
|
0.080 |
|
0.072 |
|
|
|
|
0.081 |
|
0.042 |
|
0.055 |
|
0.096 |
砒素 (mg/l) |
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
|
|
< 0.005 |
|
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
< 0.005 |
トリクロロエチレン (mg/l) |
|
< 0.002 |
|
< 0.002 |
|
|
|
|
|
|
< 0.002 |
|
< 0.002 |
|
|
テトラクロロエチレン (mg/l) |
|
< 0.0005 |
|
< 0.0005 |
|
|
|
|
|
|
< 0.0005 |
|
< 0.0005 |
|
|
鉄(溶解性) (mg/l) |
|
0.38 |
|
0.19 |
|
|
|
|
0.18 |
|
0.30 |
|
0.26 |
|
0.23 |
透視度 |
> 30 |
25 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
27 |
> 30 |
> 30 |
> 30 |
> 30 |
> 30 |
酸度 (mg/l) |
|
3 |
|
2 |
|
|
|
|
4 |
|
1 |
|
4 |
|
4 |
アルカリ度 (mg/l) |
|
20 |
|
38 |
|
|
|
|
40 |
|
33 |
|
33 |
|
36 |