測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
01852 |
北上川(3) |
朝日橋 |
A |
測定結果
採取年月日 |
1993.04.15 |
1993.05.19 |
1993.06.02 |
1993.07.07 |
1993.08.10 |
1993.08.10 |
1993.08.10 |
1993.08.10 |
1993.09.02 |
1993.10.06 |
1993.11.10 |
1993.12.15 |
1994.01.12 |
1994.02.09 |
1994.03.02 |
採取時刻 |
1035 |
1040 |
1035 |
1045 |
0050 |
0650 |
1250 |
1850 |
1055 |
1020 |
1020 |
1015 |
1055 |
1020 |
1020 |
天候 |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
気温 (℃) |
16.1 |
20.4 |
19.6 |
21.3 |
17.4 |
18.3 |
21.2 |
19.3 |
25.5 |
21.5 |
8.5 |
-0.6 |
1.1 |
3.1 |
3.5 |
水温 (℃) |
8.5 |
12.5 |
15.0 |
17.5 |
18.1 |
18.0 |
18.0 |
18.1 |
18.9 |
12.2 |
7.9 |
2.0 |
1.3 |
2.3 |
3.5 |
流量 (m3/s) |
67.90 |
218.80 |
120.70 |
69.70 |
120.70 |
105.00 |
90.40 |
100.70 |
102.90 |
88.40 |
76.90 |
90.40 |
56.30 |
47.10 |
73.20 |
pH |
7.7 |
7.2 |
7.4 |
7.5 |
7.5 |
7.5 |
7.4 |
7.6 |
7.5 |
7.6 |
7.5 |
7.3 |
7.4 |
7.5 |
7.6 |
DO (mg/l) |
12 |
10 |
10 |
8.9 |
8.8 |
8.5 |
9.3 |
9.3 |
9.3 |
10 |
12 |
13 |
13 |
13 |
13 |
BOD (mg/l) |
1.5 |
1.2 |
1.2 |
1.3 |
0.9 |
0.8 |
0.6 |
0.6 |
0.5 |
0.9 |
1.1 |
1.9 |
1.1 |
1.7 |
1.3 |
COD (mg/l) |
2.3 |
2.9 |
2 |
3.1 |
|
1.9 |
|
|
2.3 |
1.4 |
1.9 |
1.4 |
1.5 |
2 |
2.5 |
SS (mg/l) |
6 |
18 |
4 |
7 |
4 |
4 |
3 |
3 |
4 |
1 |
2 |
2 |
1 |
3 |
9 |
大腸菌群数 (MPN/100ml) |
4.9E+02 |
2.4E+03 |
1.1E+03 |
3.3E+03 |
4.9E+03 |
1.3E+04 |
4.9E+03 |
1.1E+04 |
1.3E+04 |
1.1E+03 |
2.4E+03 |
4.9E+02 |
7.0E+02 |
1.1E+04 |
1.7E+04 |
全窒素 (mg/l) |
|
1.2 |
|
1.3 |
|
|
|
|
1.1 |
|
1 |
|
1.3 |
|
1.4 |
全燐 (mg/l) |
|
0.053 |
|
0.064 |
|
|
|
|
0.04 |
|
0.035 |
|
0.034 |
|
0.047 |
砒素 (mg/l) |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
|
< 0.01 |
|
|
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
< 0.01 |
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) |
|
2.9 |
|
3 |
|
|
|
|
1.9 |
|
1 |
|
1.4 |
|
2.7 |