測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
01352 |
小川川 |
L‐16(日向ダム) |
A |
測定結果
採取年月日 |
2005.05.20 |
2005.06.08 |
2005.06.29 |
2005.07.20 |
2005.08.10 |
2005.09.12 |
2005.10.05 |
2005.11.02 |
2005.12.07 |
2006.01.11 |
2006.02.01 |
2006.03.01 |
2005.05.20 |
2005.06.08 |
2005.06.29 |
2005.07.20 |
2005.08.10 |
2005.09.12 |
2005.10.05 |
2005.11.02 |
2005.12.07 |
2006.01.11 |
2006.02.01 |
2006.03.01 |
2005.05.20 |
2005.06.08 |
2005.06.29 |
2005.07.20 |
2005.08.10 |
2005.09.12 |
2005.10.05 |
2005.11.02 |
2005.12.07 |
2006.01.11 |
2006.02.01 |
2006.03.01 |
採取時刻 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
水温 (℃) |
17.6 |
20.5 |
21.8 |
21.4 |
22.2 |
22.3 |
21.7 |
20.2 |
20.1 |
18.3 |
8.4 |
11.2 |
17 |
19.2 |
20.9 |
20.3 |
21.3 |
22.1 |
21.3 |
20.7 |
19.4 |
18.4 |
9 |
9.6 |
16.4 |
18.6 |
20.8 |
19.9 |
19.5 |
21.7 |
21.3 |
20.9 |
19.1 |
18.3 |
9 |
10.9 |
採取水深 (m) |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
8 |
8.5 |
8.5 |
8 |
8.5 |
8.5 |
8.5 |
8.5 |
8.5 |
8.5 |
8.2 |
8.3 |
15 |
16 |
16 |
15 |
16 |
16 |
16.2 |
16 |
16 |
16 |
15.5 |
15.5 |
全水深 (m) |
16 |
17 |
17 |
16 |
17 |
17 |
17.2 |
17 |
17 |
17 |
16.5 |
16.5 |
16 |
17 |
17 |
16 |
17 |
17 |
17.2 |
17 |
17 |
17 |
16.5 |
16.5 |
16 |
17 |
17 |
16 |
17 |
17 |
17.2 |
17 |
17 |
17 |
16.5 |
16.5 |
pH |
8.4 |
8.5 |
7.9 |
8.8 |
8.3 |
7.5 |
7.9 |
7.7 |
7.4 |
7.7 |
7.6 |
7.6 |
7.3 |
7.2 |
7.2 |
7 |
7 |
6.9 |
7.4 |
7.5 |
7.6 |
7.5 |
7.4 |
7.1 |
7.1 |
6.8 |
7.1 |
6.8 |
6.8 |
6.9 |
7.1 |
7.1 |
7.6 |
7.3 |
7.1 |
7 |
DO (mg/l) |
10 |
10 |
9.6 |
12 |
9.6 |
9.1 |
11 |
10 |
13 |
14 |
11 |
12 |
8.4 |
7.9 |
7.1 |
2.5 |
5.6 |
6.3 |
6.4 |
10 |
2.4 |
9 |
10 |
11 |
5.8 |
3.1 |
< 0.5 |
0.6 |
2.5 |
< 0.5 |
< 0.5 |
< 0.5 |
1.7 |
3.6 |
6.1 |
5.6 |
BOD (mg/l) |
1.6 |
1.9 |
1.1 |
1.6 |
0.8 |
0.7 |
1.2 |
< 0.5 |
1.5 |
1.2 |
1.6 |
1.6 |
1.5 |
1.6 |
0.8 |
0.9 |
0.8 |
0.8 |
0.5 |
0.9 |
1.7 |
1.5 |
2.3 |
2.2 |
1.2 |
0.7 |
< 0.5 |
0.9 |
0.7 |
1.2 |
1.4 |
2.9 |
1.2 |
0.9 |
1.2 |
1 |
COD (mg/l) |
1.7 |
1.8 |
2.5 |
2 |
1.8 |
0.9 |
1.6 |
1.5 |
1.6 |
1.4 |
1.2 |
1.3 |
1.8 |
1.9 |
1.9 |
1.4 |
2.2 |
1.5 |
1.6 |
1.4 |
1.7 |
1.5 |
1.7 |
1.4 |
1.4 |
1.3 |
1.6 |
1.7 |
1.8 |
1.9 |
2.7 |
3.7 |
1.8 |
1.3 |
1.4 |
1.6 |
SS (mg/l) |
2 |
< 1 |
3 |
3 |
2 |
< 1 |
1 |
3 |
1 |
2 |
2 |
2 |
3 |
1 |
3 |
2 |
3 |
2 |
2 |
2 |
1 |
1 |
1 |
2 |
2 |
3 |
3 |
2 |
2 |
3 |
1 |
1 |
2 |
2 |
2 |
2 |
大腸菌群数 (MPN/100ml) |
490 |
4900 |
1100 |
1300 |
700 |
1700 |
1300 |
1100 |
330 |
23 |
23 |
33 |
170 |
790 |
790 |
1300 |
4900 |
790 |
1700 |
1700 |
790 |
49 |
49 |
33 |
240 |
130 |
330 |
490 |
490 |
490 |
490 |
790 |
330 |
23 |
33 |
79 |
全窒素 (mg/l) |
0.12 |
0.21 |
0.27 |
0.18 |
0.16 |
0.2 |
0.17 |
0.2 |
0.21 |
0.17 |
0.11 |
0.25 |
0.23 |
0.21 |
0.2 |
0.24 |
0.32 |
0.32 |
0.19 |
0.21 |
0.23 |
0.2 |
0.19 |
0.2 |
0.26 |
0.48 |
0.63 |
0.47 |
0.51 |
0.61 |
0.64 |
0.79 |
0.24 |
0.39 |
0.36 |
0.42 |
全燐 (mg/l) |
0.016 |
0.019 |
0.013 |
0.014 |
0.014 |
0.017 |
0.015 |
0.016 |
0.017 |
0.004 |
0.008 |
0.006 |
0.019 |
0.019 |
0.012 |
0.017 |
0.024 |
0.027 |
0.017 |
0.018 |
0.018 |
0.008 |
0.012 |
0.005 |
0.012 |
0.01 |
0.019 |
0.01 |
0.013 |
0.042 |
0.069 |
0.11 |
0.024 |
0.012 |
0.013 |
0.011 |
クロロフィル-a (ug/l) |
2 |
< 1 |
2 |
14 |
4 |
< 1 |
2 |
4 |
< 1 |
< 1 |
1 |
1 |
7 |
< 1 |
1 |
< 1 |
4 |
< 1 |
5 |
5 |
< 1 |
3 |
1 |
1 |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
< 1 |
2 |
プランクトン(優占種) |
Nitzschia |
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Thalassios |
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