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 |
1995.04.26 |
1995.04.26 |
1995.04.26 |
1995.05.17 |
1995.05.17 |
1995.05.17 |
1995.06.14 |
1995.06.14 |
1995.06.14 |
1995.07.19 |
1995.07.19 |
1995.07.19 |
1995.08.23 |
1995.08.23 |
1995.08.23 |
1995.09.20 |
1995.09.20 |
1995.09.20 |
1995.10.11 |
1995.10.11 |
1995.10.11 |
1995.11.17 |
1995.11.17 |
1995.11.17 |
1995.12.15 |
1995.12.15 |
1995.12.15 |
1996.01.17 |
1996.01.17 |
1996.01.17 |
1996.02.14 |
1996.02.14 |
1996.02.14 |
1996.03.06 |
1996.03.06 |
1996.03.06 |
採取時刻 |
0918 |
1028 |
1108 |
0955 |
1115 |
1150 |
0937 |
1059 |
1134 |
0938 |
1041 |
1115 |
1015 |
1125 |
1158 |
0955 |
1052 |
1138 |
0941 |
1048 |
1105 |
0935 |
1045 |
1114 |
0905 |
1023 |
1045 |
0930 |
1102 |
1145 |
0935 |
1107 |
1220 |
0557 |
0645 |
0738 |
天候 |
曇り |
曇り |
曇り |
雨 |
雨 |
雨 |
曇り |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
雨 |
雨 |
雨 |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
晴れ |
雪 |
雪 |
雪 |
気温 (℃) |
13.0 |
14.0 |
15.0 |
14.0 |
12.5 |
12.5 |
16.0 |
16.0 |
17.0 |
25.0 |
26.0 |
25.0 |
25.5 |
25.8 |
26.0 |
19.5 |
19.0 |
18.0 |
16.0 |
19.0 |
20.5 |
8.0 |
8.0 |
8.0 |
1.0 |
1.0 |
1.0 |
-2.0 |
-3.5 |
-3.0 |
7.0 |
8.0 |
8.0 |
-5.0 |
-4.0 |
-3.0 |
水温 (℃) |
5.7 |
5.0 |
4.6 |
9.2 |
7.2 |
5.9 |
14.3 |
9.5 |
6.5 |
16.1 |
13.3 |
6.9 |
20.5 |
12.0 |
7.3 |
14.8 |
12.9 |
8.5 |
11.7 |
10.7 |
8.7 |
5.6 |
5.6 |
5.5 |
1.9 |
2.6 |
2.8 |
0.3 |
0.3 |
0.8 |
1.4 |
1.3 |
1.0 |
0.5 |
1.6 |
1.6 |
流量 (m3/s) |
55.67 |
55.67 |
55.67 |
24.90 |
24.90 |
24.90 |
3.96 |
3.96 |
3.96 |
16.50 |
16.50 |
16.50 |
3.80 |
3.80 |
3.80 |
6.78 |
6.78 |
6.78 |
4.06 |
4.06 |
4.06 |
17.32 |
17.32 |
17.32 |
5.91 |
5.91 |
5.91 |
6.40 |
6.40 |
6.40 |
6.23 |
6.23 |
6.23 |
1.47 |
1.47 |
1.47 |
採取水深 (m) |
0.5 |
15.0 |
30.8 |
0.5 |
15.0 |
30.6 |
0.5 |
15.0 |
27.8 |
0.5 |
10.0 |
24.6 |
0.5 |
10.0 |
19.1 |
0.5 |
8.0 |
17.4 |
0.5 |
10.0 |
17.3 |
0.5 |
15.0 |
30.3 |
0.5 |
15.0 |
28.0 |
0.5 |
10.0 |
21.0 |
0.5 |
10.0 |
20.0 |
0.5 |
6.0 |
11.0 |
全水深 (m) |
31.80 |
31.80 |
31.80 |
31.64 |
31.64 |
31.64 |
28.76 |
28.76 |
28.76 |
25.60 |
25.60 |
25.60 |
20.07 |
20.07 |
20.07 |
18.46 |
18.46 |
18.46 |
18.31 |
18.31 |
18.31 |
31.34 |
31.34 |
31.34 |
28.97 |
28.97 |
28.97 |
22.00 |
22.00 |
22.00 |
21.00 |
21.00 |
21.00 |
12.00 |
12.00 |
12.00 |
透明度 (m) |
0.60 |
0.60 |
0.60 |
1.60 |
1.60 |
1.60 |
2.00 |
2.00 |
2.00 |
1.10 |
1.10 |
1.10 |
0.80 |
0.80 |
0.80 |
0.80 |
0.80 |
0.80 |
1.30 |
1.30 |
1.30 |
2.40 |
2.40 |
2.40 |
3.40 |
3.40 |
3.40 |
2.40 |
2.40 |
2.40 |
3.80 |
3.80 |
3.80 |
3.30 |
3.30 |
3.30 |
外観 |
白濁 |
白濁 |
白濁 |
無色澄明 |
無色澄明 |
微白濁 |
無色澄明 |
無色澄明 |
白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
白濁 |
白濁 |
微白濁 |
微白濁 |
微白濁 |
無色澄明 |
無色澄明 |
白濁 |
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 |
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 |
6.9 |
7.0 |
7.0 |
7.1 |
7.0 |
6.9 |
7.4 |
7.1 |
6.9 |
7.2 |
7.2 |
7.0 |
7.4 |
7.0 |
6.9 |
7.1 |
6.9 |
6.8 |
7.3 |
7.2 |
6.9 |
7.0 |
7.0 |
7.0 |
7.3 |
7.3 |
7.3 |
7.2 |
7.2 |
7.2 |
7.2 |
7.2 |
7.2 |
7.3 |
7.1 |
7.2 |
DO (mg/l) |
12.0 |
11.0 |
11.0 |
11.0 |
11.0 |
10.0 |
9.7 |
9.7 |
8.4 |
9.2 |
9.0 |
4.3 |
7.4 |
5.7 |
2.4 |
8.3 |
6.8 |
< 0.5 |
8.8 |
8.3 |
0.7 |
11.0 |
10.0 |
11.0 |
12.0 |
12.0 |
11.0 |
12.0 |
12.0 |
12.0 |
10.0 |
11.0 |
10.0 |
11.0 |
10.0 |
10.0 |
BOD (mg/l) |
0.6 |
0.6 |
0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.5 |
< 0.5 |
< 0.5 |
0.6 |
< 0.5 |
< 0.5 |
0.5 |
< 0.5 |
0.6 |
< 0.5 |
< 0.5 |
0.7 |
0.8 |
0.9 |
0.9 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.6 |
0.5 |
COD (mg/l) |
0.7 |
1.1 |
1.8 |
1.1 |
1.2 |
1.4 |
1.1 |
0.8 |
2.3 |
1.5 |
1.9 |
1.5 |
1.6 |
2.6 |
2.3 |
1.6 |
1.8 |
2.9 |
1.6 |
1.8 |
9.5 |
1.8 |
1.1 |
1.2 |
1.0 |
0.9 |
3.5 |
0.8 |
0.6 |
0.9 |
0.7 |
0.8 |
0.8 |
0.8 |
0.7 |
0.7 |
SS (mg/l) |
17 |
55 |
95 |
2 |
10 |
20 |
3 |
3 |
58 |
3 |
8 |
18 |
8 |
18 |
16 |
13 |
14 |
24 |
3 |
7 |
226 |
2 |
2 |
3 |
2 |
2 |
80 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
大腸菌群数 (MPN/100ml) |
7.8E+00 |
7.8E+00 |
4.9E+01 |
0.0E+00 |
7.8E+00 |
2.0E+00 |
4.5E+00 |
2.0E+00 |
2.0E+00 |
4.9E+01 |
2.4E+02 |
2.3E+01 |
7.9E+01 |
2.3E+01 |
7.9E+01 |
7.0E+01 |
4.9E+02 |
1.3E+03 |
4.9E+01 |
4.9E+01 |
1.4E+02 |
4.5E+00 |
7.8E+00 |
3.3E+01 |
1.3E+01 |
1.3E+01 |
4.8E+00 |
2.0E+00 |
2.0E+00 |
1.3E+02 |
0.0E+00 |
0.0E+00 |
0.0E+00 |
3.3E+02 |
2.4E+02 |
1.3E+01 |
全窒素 (mg/l) |
0.65 |
0.63 |
0.89 |
0.19 |
0.20 |
0.27 |
0.37 |
0.38 |
0.67 |
0.38 |
0.41 |
0.55 |
0.29 |
0.39 |
0.43 |
0.42 |
0.37 |
0.71 |
0.24 |
0.24 |
0.86 |
0.19 |
0.20 |
0.15 |
0.11 |
0.13 |
0.41 |
0.30 |
0.25 |
0.26 |
0.16 |
0.17 |
0.17 |
0.22 |
0.11 |
0.11 |
全燐 (mg/l) |
0.015 |
0.040 |
0.064 |
0.007 |
0.010 |
0.020 |
0.004 |
0.005 |
0.032 |
0.007 |
0.009 |
0.022 |
0.008 |
0.024 |
0.024 |
0.010 |
0.009 |
0.025 |
0.007 |
0.009 |
0.049 |
0.008 |
0.005 |
0.005 |
0.003 |
< 0.003 |
0.034 |
0.004 |
< 0.003 |
0.003 |
0.003 |
0.003 |
0.003 |
0.003 |
0.003 |
0.003 |
カドミウム (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
< 0.001 |
|
|
< 0.001 |
|
|
< 0.001 |
|
|
全シアン (mg/l) |
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
N |
|
|
N |
|
|
N |
|
|
鉛 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
< 0.005 |
|
|
< 0.005 |
|
|
六価クロム (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.04 |
|
|
|
|
|
|
|
|
|
|
|
< 0.04 |
|
|
|
|
|
< 0.04 |
|
|
< 0.04 |
|
|
< 0.04 |
|
|
砒素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
|
|
|
|
|
|
< 0.005 |
|
|
|
|
|
< 0.005 |
|
|
< 0.005 |
|
|
< 0.005 |
|
|
総水銀 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
< 0.0005 |
|
|
< 0.0005 |
|
|
< 0.0005 |
|
|
PCB (mg/l) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ジクロロメタン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
四塩化炭素 (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,2-ジクロロエタン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0004 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,1-ジクロロエチレン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
シス-1,2-ジクロロエチレン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.004 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,1,1-トリクロロエタン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,1,2-トリクロロエタン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
トリクロロエチレン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
テトラクロロエチレン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,3-ジクロロプロペン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チウラム (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
シマジン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.0003 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チオベンカルブ (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ベンゼン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
セレン (mg/l) |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
クロロフィル-a (ug/l) |
|
|
|
|
|
|
|
|
|
< 1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
透視度 |
30.0 |
10.0 |
7.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
20.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
17.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
24.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |