測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
50401 |
石淵ダム貯水池 |
L‐11(ダムサイト) |
AA |
測定結果
採取年月日 |
2001.04.18 |
2001.04.18 |
2001.04.18 |
2001.05.23 |
2001.05.23 |
2001.05.23 |
2001.06.26 |
2001.06.26 |
2001.06.26 |
2001.07.11 |
2001.07.11 |
2001.07.11 |
2001.08.29 |
2001.08.29 |
2001.08.29 |
2001.09.19 |
2001.09.19 |
2001.09.19 |
2001.10.10 |
2001.10.10 |
2001.10.10 |
2001.11.28 |
2001.11.28 |
2001.11.28 |
2001.12.12 |
2001.12.12 |
2001.12.12 |
2002.01.16 |
2002.01.16 |
2002.01.16 |
2002.02.13 |
2002.02.13 |
2002.02.13 |
2002.03.06 |
2002.03.06 |
2002.03.06 |
採取時刻 |
1019 |
1054 |
1107 |
1002 |
1047 |
1101 |
1003 |
1041 |
1100 |
0947 |
1031 |
1047 |
1017 |
1054 |
1114 |
0945 |
1024 |
1052 |
1022 |
1111 |
1248 |
1015 |
1107 |
1135 |
1022 |
1139 |
1154 |
0748 |
0810 |
0843 |
0723 |
0810 |
0839 |
0645 |
0715 |
0731 |
天候 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
曇り |
晴れ |
晴れ |
曇り |
曇り |
曇り |
雨 |
雨 |
雨 |
雪 |
雪 |
雪 |
晴れ |
晴れ |
晴れ |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
雪 |
雪 |
雪 |
気温 (℃) |
18.0 |
19.0 |
19.0 |
21.0 |
19.0 |
19.0 |
23.0 |
23.0 |
25.0 |
25.0 |
27.0 |
27.0 |
29.0 |
29.0 |
27.0 |
20.5 |
19.0 |
19.0 |
12.0 |
12.0 |
12.0 |
2.0 |
2.0 |
2.0 |
0.5 |
1.0 |
1.5 |
2.0 |
0.0 |
0.0 |
-10.0 |
-9.0 |
-2.0 |
1.0 |
0.5 |
5.0 |
水温 (℃) |
6.4 |
5.5 |
5.1 |
12.6 |
6.2 |
5.6 |
17.5 |
11.3 |
5.8 |
22.3 |
12.5 |
5.9 |
20.5 |
15.0 |
6.6 |
16.4 |
13.9 |
10.2 |
12.5 |
11.3 |
12.2 |
5.5 |
5.5 |
5.0 |
2.0 |
2.0 |
2.0 |
0.5 |
0.5 |
0.2 |
0.1 |
2.1 |
2.4 |
0.5 |
2.1 |
2.1 |
流量 (m3/s) |
40.56 |
40.56 |
40.56 |
17.47 |
17.47 |
17.47 |
8.71 |
8.71 |
8.71 |
6.98 |
6.98 |
6.98 |
8.84 |
8.84 |
8.84 |
10.25 |
10.25 |
10.25 |
3.18 |
3.18 |
3.18 |
6.65 |
6.65 |
6.65 |
4.50 |
4.50 |
4.50 |
30.67 |
30.67 |
30.67 |
5.11 |
5.11 |
5.11 |
7.83 |
7.83 |
7.83 |
採取水深 (m) |
0.5 |
15.3 |
30.6 |
0.5 |
15.6 |
31.1 |
0.5 |
14.0 |
28.1 |
0.5 |
12.3 |
24.7 |
0.5 |
11.4 |
22.7 |
0.5 |
12.2 |
24.3 |
0.5 |
16.9 |
8.4 |
0.5 |
13.0 |
26.0 |
0.5 |
14.4 |
27.7 |
22.7 |
11.8 |
0.5 |
0.5 |
11.6 |
22.1 |
0.5 |
6.4 |
11.9 |
全水深 (m) |
31.6 |
31.6 |
31.6 |
32.1 |
32.1 |
32.1 |
29.1 |
29.1 |
29.1 |
25.7 |
25.7 |
25.7 |
23.7 |
23.7 |
23.7 |
25.3 |
25.3 |
25.3 |
17.9 |
17.9 |
17.9 |
27.0 |
27.0 |
27.0 |
28.7 |
28.7 |
28.7 |
23.7 |
23.7 |
23.7 |
23.1 |
23.1 |
23.1 |
12.9 |
12.9 |
12.9 |
透明度 (m) |
1.70 |
|
|
2.70 |
|
|
3.00 |
|
|
1.80 |
|
|
1.50 |
|
|
1.30 |
|
|
1.70 |
|
|
3.20 |
|
|
2.60 |
|
|
|
|
5.00 |
2.90 |
|
|
2.90 |
|
|
外観 |
無色澄明 |
無色澄明 |
濃白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
濃白濁 |
濃白濁 |
無色澄明 |
濃白濁 |
茶濁 |
無色澄明 |
濃白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
茶濁 |
茶濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
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 |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
pH |
6.8 |
6.8 |
6.7 |
7.1 |
7.0 |
6.9 |
7.5 |
7.1 |
6.7 |
7.6 |
7.2 |
6.8 |
7.5 |
7.2 |
6.7 |
7.3 |
7.1 |
6.9 |
7.3 |
7.1 |
7.3 |
7.2 |
7.4 |
7.2 |
7.3 |
7.3 |
7.3 |
7.0 |
7.1 |
7.2 |
7.2 |
7.1 |
7.0 |
7.0 |
7.0 |
7.0 |
DO (mg/l) |
12.7 |
12.6 |
12.3 |
10.8 |
11.4 |
11.3 |
9.5 |
9.8 |
8.0 |
9.0 |
9.0 |
8.3 |
9.4 |
9.0 |
2.7 |
9.1 |
9.7 |
6.2 |
9.3 |
7.3 |
9.0 |
11.8 |
11.8 |
11.9 |
12.8 |
12.8 |
12.7 |
14.0 |
14.0 |
13.3 |
13.7 |
12.6 |
12.3 |
12.1 |
11.1 |
11.1 |
BOD (mg/l) |
< 0.5 |
< 0.5 |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.8 |
0.5 |
< 0.5 |
0.6 |
< 0.5 |
< 0.5 |
0.9 |
< 0.5 |
0.7 |
0.6 |
0.5 |
0.5 |
0.5 |
0.6 |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.7 |
0.7 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
COD (mg/l) |
1.3 |
1.5 |
4.5 |
0.8 |
0.9 |
1.0 |
2.6 |
2.4 |
1.7 |
2.6 |
2.3 |
1.7 |
1.7 |
2.1 |
2.1 |
1.7 |
1.9 |
3.0 |
1.1 |
2.4 |
1.4 |
1.2 |
1.1 |
1.2 |
1.0 |
0.9 |
0.9 |
3.8 |
3.8 |
0.6 |
1.0 |
1.1 |
1.1 |
0.8 |
0.8 |
0.5 |
SS (mg/l) |
3 |
4 |
67 |
1 |
2 |
3 |
2 |
2 |
5 |
3 |
4 |
4 |
5 |
28 |
17 |
4 |
10 |
40 |
4 |
18 |
5 |
1 |
2 |
2 |
1 |
1 |
1 |
70 |
70 |
< 1 |
< 1 |
2 |
2 |
1 |
1 |
2 |
大腸菌群数 (MPN/100ml) |
2.0E+00 |
4.5E+00 |
4.5E+00 |
< 1.8E+00 |
2.0E+00 |
< 1.8E+00 |
2.3E+01 |
7.9E+01 |
3.3E+01 |
1.7E+01 |
4.9E+02 |
2.3E+01 |
7.9E+02 |
3.3E+03 |
4.9E+02 |
1.3E+03 |
7.9E+02 |
1.3E+03 |
7.9E+01 |
2.4E+02 |
1.3E+02 |
2.3E+01 |
2.3E+01 |
3.3E+01 |
3.3E+01 |
3.3E+01 |
1.3E+01 |
2.4E+02 |
4.9E+02 |
3.3E+01 |
1.3E+01 |
1.3E+01 |
1.7E+01 |
1.3E+01 |
2.0E+00 |
2.0E+00 |
全窒素 (mg/l) |
0.34 |
0.33 |
0.61 |
0.20 |
0.28 |
0.28 |
0.31 |
0.21 |
0.17 |
0.25 |
0.26 |
0.38 |
0.30 |
0.37 |
0.46 |
0.21 |
0.24 |
0.41 |
0.19 |
0.33 |
0.19 |
0.22 |
0.21 |
0.19 |
0.29 |
0.22 |
0.21 |
0.67 |
0.66 |
0.20 |
0.26 |
0.26 |
0.24 |
0.29 |
0.29 |
0.33 |
全燐 (mg/l) |
0.005 |
0.004 |
0.037 |
0.004 |
0.005 |
0.006 |
0.008 |
0.006 |
0.009 |
0.005 |
0.005 |
0.005 |
0.011 |
0.015 |
0.019 |
0.007 |
0.009 |
0.041 |
0.004 |
0.018 |
0.005 |
0.003 |
0.003 |
0.004 |
0.004 |
0.004 |
0.004 |
0.049 |
0.045 |
0.005 |
< 0.003 |
0.003 |
0.003 |
< 0.003 |
0.004 |
0.004 |
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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
六価クロム (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
砒素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
総水銀 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チウラム (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
シマジン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0003 |
|
|
|
|
|
|
|
|
|
|
|
< 0.0003 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チオベンカルブ (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ベンゼン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
セレン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ふっ素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
クロロフィル-a (ug/l) |
|
|
|
< 2 |
|
|
|
|
|
< 2 |
|
|
|
|
|
< 2 |
|
|
|
|
|
< 2 |
|
|
|
|
|
|
|
< 2 |
|
|
|
< 2 |
|
|
透視度 |
> 30.0 |
> 30.0 |
28.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
15.0 |
> 30.0 |
26.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
13.0 |
14.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
ほう素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.19 |
0.17 |
0.18 |
|
|
|
0.12 |
0.13 |
0.13 |
|
|
|
0.14 |
0.17 |
0.12 |
|
|
|
0.11 |
0.11 |
0.11 |
|
|
|
0.28 |
0.26 |
0.11 |
|
|
|
0.18 |
0.20 |
0.18 |