測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
01901 |
北上川(4) |
千歳橋(狐禅寺) |
A |
測定結果
採取年月日 |
2005.04.20 |
2005.04.26 |
2005.05.11 |
2005.05.25 |
2005.06.15 |
2005.06.27 |
2005.07.20 |
2005.07.26 |
2005.08.02 |
2005.08.02 |
2005.08.02 |
2005.08.02 |
2005.08.29 |
2005.09.14 |
2005.09.20 |
2005.10.05 |
2005.10.19 |
2005.11.09 |
2005.11.21 |
2005.12.07 |
2005.12.14 |
2006.01.11 |
2006.01.18 |
2006.02.08 |
2006.02.15 |
2006.03.01 |
2006.03.08 |
採取時刻 |
0950 |
1115 |
1030 |
1115 |
1015 |
1120 |
1025 |
1035 |
0000 |
0600 |
1200 |
1800 |
1240 |
1100 |
1005 |
0945 |
1158 |
0955 |
1145 |
0950 |
1140 |
1145 |
1015 |
1040 |
1135 |
1220 |
1015 |
天候 |
曇り |
曇り |
晴れ |
晴れ |
曇り |
雨 |
晴れ |
雨 |
曇り |
曇り |
曇り |
曇り |
晴れ |
曇り |
晴れ |
曇り |
晴れ |
雨 |
晴れ |
曇り |
曇り |
晴れ |
曇り |
曇り |
晴れ |
雨 |
晴れ |
気温 (℃) |
8.7 |
18.2 |
15.8 |
18.8 |
19.7 |
21.5 |
27.7 |
22.4 |
26 |
24.4 |
32 |
26.8 |
28.5 |
23 |
25.6 |
15.4 |
19.6 |
7.6 |
9.5 |
3.5 |
1.4 |
2.4 |
-0.7 |
4.7 |
10.7 |
0.3 |
8.7 |
水温 (℃) |
7.2 |
9.4 |
11.9 |
13 |
19 |
21.1 |
22 |
20.8 |
23.8 |
23 |
23.8 |
24 |
23 |
20.5 |
20 |
14 |
16.1 |
9.2 |
7 |
3.4 |
2 |
0.5 |
1.5 |
0.9 |
4.5 |
3.1 |
4.2 |
流量 (m3/s) |
558.39 |
536.41 |
365.53 |
437.75 |
192.88 |
119.08 |
187.9 |
178.15 |
302.95 |
229.55 |
203.03 |
197.92 |
197.92 |
216.09 |
218.75 |
281.37 |
111.33 |
306.09 |
139.57 |
163.99 |
166.31 |
125.05 |
143.86 |
121.05 |
192.88 |
368.98 |
362.09 |
採取水深 (m) |
0.64 |
0.61 |
0.5 |
0.5 |
0.29 |
0.2 |
0.3 |
0.27 |
0.34 |
0.3 |
0.29 |
0.29 |
0.28 |
0.32 |
0.28 |
0.35 |
0.14 |
0.36 |
0.16 |
0.24 |
0.2 |
0.16 |
0.2 |
0.32 |
0.38 |
0.53 |
0.56 |
全水深 (m) |
3.2 |
3.05 |
2.5 |
2.5 |
1.45 |
1 |
1.5 |
1.35 |
1.7 |
1.5 |
1.45 |
1.45 |
1.4 |
1.6 |
1.4 |
1.75 |
0.7 |
1.8 |
0.8 |
1.2 |
1 |
0.8 |
1 |
1.6 |
1.9 |
2.65 |
2.8 |
外観 |
微白濁 |
微白濁 |
茶濁 |
茶色 |
無色澄明 |
微白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
微白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
微白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
茶色 |
無色澄明 |
無色澄明 |
臭気 |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
pH |
7.1 |
7.1 |
7.1 |
7.1 |
7.3 |
7.3 |
7.5 |
7.4 |
7.4 |
7.2 |
7.3 |
7.4 |
7.4 |
7.4 |
7.5 |
7.4 |
7.7 |
7.4 |
7.2 |
7.4 |
7.4 |
7.6 |
7.5 |
7.5 |
7.5 |
7.3 |
7.4 |
DO (mg/l) |
10 |
11 |
10 |
10 |
8.6 |
7.7 |
8.4 |
8.5 |
8.4 |
8.1 |
8.3 |
8.6 |
8.5 |
8.6 |
8.6 |
9.7 |
10 |
10 |
11 |
12 |
13 |
15 |
13 |
13 |
13 |
13 |
12 |
BOD (mg/l) |
1.3 |
0.8 |
0.9 |
1.8 |
1.6 |
1.4 |
0.9 |
1.1 |
1 |
1.2 |
1.1 |
1.2 |
0.7 |
1.4 |
1.7 |
1.2 |
1.2 |
1.4 |
1.1 |
1.2 |
0.8 |
1 |
0.9 |
1.1 |
2 |
1 |
1 |
COD (mg/l) |
2.4 |
|
3 |
|
3.3 |
|
2.2 |
|
|
|
2.6 |
|
|
|
2.8 |
2.5 |
|
3.3 |
|
2.1 |
|
|
2.8 |
2.5 |
|
|
3.3 |
SS (mg/l) |
12 |
9 |
15 |
15 |
9 |
10 |
5 |
6 |
7 |
6 |
5 |
5 |
7 |
4 |
6 |
4 |
2 |
9 |
2 |
2 |
2 |
3 |
5 |
3 |
14 |
7 |
6 |
大腸菌群数 (MPN/100ml) |
4.9E+02 |
7.9E+02 |
4.9E+03 |
1.7E+03 |
7.9E+03 |
7.9E+03 |
1.1E+03 |
3.3E+03 |
4.9E+02 |
2.4E+03 |
7.9E+02 |
7.9E+02 |
4.9E+03 |
4.9E+03 |
1.1E+04 |
2.2E+03 |
7.9E+03 |
4.9E+03 |
7.9E+02 |
7.9E+02 |
4.9E+03 |
1.7E+03 |
7.9E+03 |
4.9E+03 |
1.7E+03 |
1.1E+03 |
1.7E+03 |
全窒素 (mg/l) |
|
|
0.84 |
|
|
|
0.93 |
|
|
|
|
|
|
|
0.9 |
|
|
0.9 |
|
|
|
|
1 |
|
|
|
1.2 |
全燐 (mg/l) |
|
|
0.079 |
|
|
|
0.077 |
|
|
|
|
|
|
|
0.106 |
|
|
0.065 |
|
|
|
|
0.058 |
|
|
|
0.046 |
全亜鉛 (mg/l) |
|
|
0.01 |
|
|
|
< 0.01 |
|
|
|
|
|
|
|
< 0.01 |
|
|
< 0.01 |
|
|
|
|
< 0.01 |
|
|
|
< 0.01 |
カドミウム (mg/l) |
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
全シアン (mg/l) |
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
鉛 (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 |
六価クロム (mg/l) |
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
砒素 (mg/l) |
< 0.001 |
|
< 0.001 |
|
0.001 |
|
< 0.001 |
|
|
|
< 0.001 |
|
|
|
0.001 |
< 0.001 |
|
0.001 |
|
< 0.001 |
|
|
< 0.001 |
0.001 |
|
|
0.001 |
総水銀 (mg/l) |
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
PCB (mg/l) |
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ジクロロメタン (mg/l) |
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
四塩化炭素 (mg/l) |
|
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
1,2-ジクロロエタン (mg/l) |
|
|
|
|
< 0.0004 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.0004 |
|
|
|
|
|
|
|
|
|
1,1-ジクロロエチレン (mg/l) |
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
シス-1,2-ジクロロエチレン (mg/l) |
|
|
|
|
< 0.004 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.004 |
|
|
|
|
|
|
|
|
|
1,1,1-トリクロロエタン (mg/l) |
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
1,1,2-トリクロロエタン (mg/l) |
|
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
|
|
|
|
ベンゼン (mg/l) |
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
亜鉛 (mg/l) |
|
|
0.01 |
|
|
|
< 0.01 |
|
|
|
|
|
|
|
< 0.01 |
|
|
< 0.01 |
|
|
|
|
< 0.01 |
|
|
|
< 0.01 |
鉄(溶解性) (mg/l) |
|
|
0.29 |
|
|
|
0.11 |
|
|
|
|
|
|
|
0.14 |
|
|
0.12 |
|
|
|
|
0.1 |
|
|
|
0.13 |
ふっ素 (mg/l) |
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
アンモニア性窒素 (mg/l) |
|
|
0.1 |
|
|
|
0.1 |
|
|
|
|
|
|
|
0.1 |
|
|
0.1 |
|
|
|
|
0.1 |
|
|
|
0.1 |
透視度 |
78 |
77 |
32 |
64 |
> 100 |
91 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
93 |
> 100 |
> 100 |
> 100 |
> 100 |
90 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
77 |
> 100 |
> 100 |
塩化物イオン (mg/l) |
|
|
7 |
|
|
|
9 |
|
|
|
|
|
|
|
8 |
|
|
9 |
|
|
|
|
11 |
|
|
|
9 |
硫酸イオン (mg/l) |
|
|
11 |
|
|
|
13 |
|
|
|
|
|
|
|
15 |
|
|
17 |
|
|
|
|
17 |
|
|
|
13 |
酸度 (mg/l) |
|
|
4 |
|
|
|
2 |
|
|
|
|
|
|
|
2 |
|
|
3 |
|
|
|
|
3 |
|
|
|
2 |
アルカリ度 (mg/l) |
|
|
15 |
|
|
|
27 |
|
|
|
|
|
|
|
27 |
|
|
27 |
|
|
|
|
30 |
|
|
|
26 |
鉄(2価) (mg/l) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
ほう素 (mg/l) |
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
|
0.97 |
|
|
|
|
|
|
|
|
|
|
|
|
0.7 |
|
|
|
|
|
|
|
|
|