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 |
2007.04.17 |
2007.04.26 |
2007.05.10 |
2007.05.16 |
2007.06.03 |
2007.06.20 |
2007.07.04 |
2007.07.18 |
2007.08.01 |
2007.08.01 |
2007.08.01 |
2007.08.01 |
2007.08.21 |
2007.09.05 |
2007.09.25 |
2007.10.03 |
2007.10.17 |
2007.11.07 |
2007.11.21 |
2007.12.05 |
2007.12.19 |
2008.01.16 |
2008.01.23 |
2008.02.13 |
2008.02.20 |
2008.03.12 |
2008.03.19 |
採取時刻 |
0945 |
1210 |
1126 |
1010 |
0910 |
1115 |
1000 |
1105 |
0000 |
0600 |
1200 |
1800 |
1110 |
1020 |
1410 |
0955 |
1120 |
1040 |
1120 |
0950 |
1055 |
1035 |
1110 |
1000 |
1120 |
1030 |
1110 |
天候 |
晴れ |
曇り |
曇り |
晴れ |
曇り |
晴れ |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
気温 (℃) |
10 |
12.9 |
16 |
20.1 |
17.3 |
25.8 |
19.2 |
19.4 |
19.3 |
18.8 |
27 |
25.8 |
28.5 |
28.5 |
22.9 |
19 |
16.8 |
13.2 |
4.2 |
3 |
2.6 |
0.7 |
0.5 |
-3.5 |
6 |
7 |
10.8 |
水温 (℃) |
7.5 |
8.9 |
12.8 |
12.8 |
16.5 |
21.5 |
18.8 |
18.2 |
21 |
20.9 |
23 |
23.8 |
24.8 |
22.8 |
18.9 |
17.8 |
14 |
11.4 |
7.3 |
4.9 |
4.5 |
2 |
2.6 |
1.5 |
3.8 |
4.8 |
6.2 |
流量 (m3/s) |
425.96 |
619.34 |
408.25 |
312.95 |
254.6 |
173.74 |
235.59 |
225.07 |
161.66 |
184.4 |
177.42 |
150.85 |
163.86 |
258.81 |
413.14 |
229.11 |
166.09 |
175.12 |
375.37 |
239.7 |
231.73 |
216.2 |
175.12 |
159.46 |
159.46 |
392.31 |
471.31 |
採取水深 (m) |
0.6 |
0.77 |
0.6 |
0.53 |
0.48 |
0.34 |
0.73 |
0.7 |
0.62 |
0.64 |
0.64 |
0.61 |
0.63 |
0.7 |
0.8 |
0.65 |
0.58 |
0.59 |
0.79 |
0.71 |
0.66 |
0.65 |
0.59 |
0.57 |
0.59 |
0.81 |
0.85 |
全水深 (m) |
2.5 |
3.85 |
3.02 |
2.65 |
2.4 |
1.7 |
3.65 |
3.51 |
3.08 |
3.19 |
3.21 |
3.06 |
3.13 |
3.5 |
4 |
3.25 |
2.9 |
2.95 |
3.95 |
3.55 |
3.3 |
3.25 |
2.95 |
2.84 |
2.95 |
4.05 |
4.25 |
外観 |
無色澄明 |
微白濁 |
微白濁 |
茶色 |
無色澄明 |
無色澄明 |
茶色 |
無色澄明 |
無色澄明 |
無色澄明 |
微白濁 |
微白濁 |
微白濁 |
無色澄明 |
微白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
茶色 |
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 |
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 |
7.3 |
7.2 |
7.2 |
7.2 |
7.4 |
7.5 |
7.4 |
7.4 |
7.5 |
7.5 |
7.6 |
7.7 |
7.6 |
7.4 |
7.4 |
7.5 |
7.5 |
7.5 |
7.4 |
7.4 |
7.4 |
7.2 |
7.3 |
7.5 |
7.3 |
7.2 |
7.4 |
DO (mg/l) |
11 |
11 |
10 |
10 |
9.4 |
9.4 |
8.6 |
9.2 |
8.9 |
8.2 |
8.8 |
9.1 |
8.3 |
8.4 |
9.0 |
9.3 |
10 |
11 |
11 |
12 |
13 |
14 |
14 |
13 |
14 |
12 |
12 |
BOD (mg/l) |
1.0 |
1.3 |
1.3 |
1.2 |
1.2 |
1.3 |
1.1 |
1.3 |
1.2 |
1.3 |
1.3 |
1.3 |
1.3 |
1.2 |
0.8 |
0.9 |
1.3 |
0.9 |
1.1 |
0.8 |
0.9 |
0.7 |
0.9 |
1.0 |
1.2 |
1.4 |
0.9 |
COD (mg/l) |
2.2 |
|
|
2.8 |
2.7 |
|
4.0 |
|
|
|
3.3 |
|
|
2.9 |
|
1.8 |
|
2.2 |
|
2.1 |
|
1.8 |
|
2.3 |
|
3.2 |
|
SS (mg/l) |
7 |
9 |
10 |
9 |
5 |
7 |
11 |
6 |
4 |
5 |
5 |
5 |
7 |
5 |
10 |
6 |
4 |
4 |
13 |
4 |
3 |
3 |
2 |
3 |
2 |
7 |
8 |
大腸菌群数 (MPN/100ml) |
1700 |
1300 |
3300 |
2200 |
490 |
330 |
2400 |
1100 |
7900 |
1700 |
2400 |
2200 |
330 |
4900 |
4900 |
4900 |
490 |
790 |
3300 |
490 |
1100 |
330 |
1700 |
790 |
490 |
1300 |
490 |
全窒素 (mg/l) |
|
|
|
0.87 |
|
|
1.1 |
|
|
|
|
|
|
0.88 |
|
|
|
0.91 |
|
|
|
1.0 |
|
|
|
1.1 |
|
全燐 (mg/l) |
|
|
|
0.065 |
|
|
0.079 |
|
|
|
|
|
|
0.056 |
|
|
|
0.031 |
|
|
|
0.087 |
|
|
|
0.071 |
|
全亜鉛 (mg/l) |
0.010 |
|
|
0.008 |
< 0.005 |
|
0.006 |
|
|
|
0.006 |
|
|
0.005 |
|
< 0.005 |
|
0.005 |
|
0.006 |
|
0.007 |
|
0.007 |
|
0.010 |
|
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) |
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
|
|
|
|
1,3-ジクロロプロペン (mg/l) |
|
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
ベンゼン (mg/l) |
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
鉄(溶解性) (mg/l) |
|
|
|
0.3 |
|
|
0.2 |
|
|
|
|
|
|
0.1 |
|
|
|
< 0.1 |
|
|
|
< 0.1 |
|
|
|
0.1 |
|
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 |
> 100 |
76 |
38 |
52 |
> 100 |
> 100 |
69 |
> 100 |
> 100 |
> 100 |
95 |
95 |
94 |
> 100 |
47 |
> 100 |
> 100 |
> 100 |
66 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
80 |
> 100 |
塩化物イオン (mg/l) |
|
|
|
7 |
|
|
8 |
|
|
|
|
|
|
8 |
|
|
|
10 |
|
|
|
10 |
|
|
|
9 |
|
硫酸イオン (mg/l) |
|
|
|
12 |
|
|
13 |
|
|
|
|
|
|
13 |
|
|
|
18 |
|
|
|
15 |
|
|
|
14 |
|
酸度 (mg/l) |
|
|
|
3 |
|
|
3 |
|
|
|
|
|
|
3 |
|
|
|
2 |
|
|
|
3 |
|
|
|
4 |
|
アルカリ度 (mg/l) |
|
|
|
18 |
|
|
30 |
|
|
|
|
|
|
30 |
|
|
|
31 |
|
|
|
25 |
|
|
|
25 |
|
ほう素 (mg/l) |
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
|
0.60 |
|
|
|
|
|
|
|
|
|
|
|
|
0.70 |
|
|
|
|
|
|
|
|
|