測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
01851 |
北上川(3) |
紫波橋 |
A |
測定結果
採取年月日 |
1991.04.26 |
1991.04.30 |
1991.05.08 |
1991.05.22 |
1991.06.05 |
1991.06.19 |
1991.07.16 |
1991.07.30 |
1991.08.14 |
1991.08.14 |
1991.08.14 |
1991.08.15 |
1991.08.21 |
1991.09.11 |
1991.09.18 |
1991.10.02 |
1991.10.23 |
1991.11.06 |
1991.11.20 |
1991.12.04 |
1991.12.18 |
1992.01.08 |
1992.01.22 |
1992.02.05 |
1992.02.19 |
1992.03.04 |
1992.03.09 |
採取時刻 |
0930 |
0935 |
0945 |
0940 |
0935 |
0955 |
0955 |
0950 |
1020 |
1620 |
2220 |
0420 |
0945 |
0935 |
0945 |
0945 |
0940 |
0935 |
0935 |
0940 |
0940 |
0945 |
0940 |
0940 |
0950 |
1015 |
0935 |
天候 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
雨 |
曇り |
晴れ |
晴れ |
曇り |
曇り |
雨 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
気温 (℃) |
14.1 |
15.7 |
17.5 |
18.6 |
19.0 |
23.4 |
18.6 |
21.9 |
26.8 |
30.5 |
20.3 |
18.5 |
24.0 |
18.7 |
18.2 |
21.3 |
11.4 |
9.3 |
9.2 |
8.6 |
6.6 |
6.1 |
0.7 |
2.3 |
-1.2 |
3.5 |
3.5 |
水温 (℃) |
9.2 |
9.5 |
12.6 |
15.7 |
15.8 |
19.0 |
16.1 |
18.0 |
19.0 |
21.6 |
19.8 |
18.0 |
21.2 |
18.0 |
16.7 |
15.0 |
11.0 |
7.2 |
6.9 |
5.5 |
4.2 |
3.0 |
2.3 |
1.0 |
1.2 |
1.2 |
2.5 |
流量 (m3/s) |
137.20 |
127.82 |
|
47.97 |
58.35 |
69.75 |
93.63 |
144.45 |
99.63 |
97.61 |
99.63 |
89.72 |
80.34 |
59.92 |
118.77 |
55.28 |
112.21 |
49.39 |
99.63 |
107.93 |
63.12 |
58.35 |
38.60 |
33.71 |
36.11 |
56.81 |
55.28 |
pH |
7.2 |
7.1 |
7.1 |
7.3 |
7.4 |
7.4 |
7.4 |
7.3 |
7.5 |
7.5 |
7.4 |
7.4 |
7.3 |
7.4 |
7.4 |
7.5 |
7.3 |
7.3 |
7.3 |
7.3 |
7.2 |
7.2 |
7.3 |
7.3 |
7.2 |
7.3 |
7.3 |
DO (mg/l) |
11 |
11 |
10 |
10 |
10 |
9.2 |
9.5 |
9 |
9.6 |
9.7 |
8.8 |
8.7 |
8.1 |
8.7 |
9.5 |
10 |
10 |
12 |
11 |
12 |
12 |
12 |
13 |
13 |
13 |
14 |
13 |
BOD (mg/l) |
0.6 |
0.8 |
1.3 |
1.3 |
1.2 |
1.2 |
1.2 |
1.1 |
0.8 |
0.9 |
1.1 |
0.9 |
1.5 |
1.1 |
1 |
1.1 |
0.8 |
1.4 |
1.9 |
1.1 |
1.3 |
4.1 |
1.3 |
2.2 |
1.5 |
1.3 |
1.4 |
COD (mg/l) |
2 |
|
2 |
|
2.3 |
|
|
1.7 |
1.3 |
|
|
|
|
|
1.9 |
1.5 |
|
1.6 |
|
1.7 |
|
4.3 |
|
1.7 |
|
1.7 |
|
SS (mg/l) |
6 |
16 |
5 |
3 |
3 |
10 |
9 |
11 |
4 |
3 |
3 |
3 |
8 |
5 |
8 |
5 |
4 |
1 |
11 |
4 |
2 |
22 |
3 |
3 |
3 |
3 |
3 |
大腸菌群数 (MPN/100ml) |
1.7E+03 |
2.4E+03 |
3.3E+03 |
2.4E+04 |
2.4E+04 |
2.2E+04 |
3.3E+03 |
2.4E+04 |
2.4E+04 |
3.3E+03 |
7.9E+03 |
7.9E+03 |
4.9E+04 |
3.3E+04 |
3.3E+03 |
4.9E+03 |
1.7E+04 |
3.3E+02 |
1.7E+03 |
7.9E+02 |
1.3E+03 |
2.2E+04 |
1.1E+03 |
3.3E+02 |
1.1E+03 |
3.3E+02 |
4.9E+02 |
全窒素 (mg/l) |
|
|
1.68 |
|
|
|
|
1.09 |
|
|
|
|
|
|
1.23 |
|
|
1 |
|
|
|
1.91 |
|
|
|
1.25 |
|
全燐 (mg/l) |
|
|
0.066 |
|
|
|
|
0.026 |
|
|
|
|
|
|
0.03 |
|
|
0.031 |
|
|
|
0.119 |
|
|
|
0.044 |
|
カドミウム (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 |
全シアン (mg/l) |
|
N |
|
N |
|
N |
N |
|
|
|
|
|
N |
N |
|
|
N |
|
N |
|
N |
|
N |
|
N |
|
N |
|
|
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
鉛 (mg/l) |
|
< 0.05 |
|
< 0.05 |
|
< 0.05 |
< 0.05 |
|
|
|
|
|
< 0.05 |
< 0.05 |
|
|
< 0.05 |
|
< 0.05 |
|
< 0.05 |
|
< 0.05 |
|
< 0.05 |
|
< 0.05 |
六価クロム (mg/l) |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
< 0.02 |
|
|
|
|
|
< 0.02 |
< 0.02 |
|
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
砒素 (mg/l) |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
< 0.02 |
|
|
|
|
|
< 0.02 |
< 0.02 |
|
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
総水銀 (mg/l) |
|
< 0 |
|
< 0 |
|
< 0 |
< 0 |
|
|
|
|
|
< 0 |
< 0 |
|
|
< 0 |
|
< 0 |
|
< 0 |
|
< 0 |
|
< 0 |
|
< 0 |
PCB (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
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) |
|
|
1.4 |
|
|
|
|
1.4 |
|
|
|
|
|
|
1.8 |
|
|
1 |
|
|
|
|
5.2 |
|
|
1.8 |
|