測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
50101 |
湯田ダム貯水池 |
L‐9(ダムサイト) |
A |
測定結果
採取年月日 |
2004.04.26 |
2004.04.26 |
2004.04.26 |
2004.05.26 |
2004.05.26 |
2004.05.26 |
2004.06.16 |
2004.06.16 |
2004.06.16 |
2004.07.14 |
2004.07.14 |
2004.07.14 |
2004.08.18 |
2004.08.18 |
2004.08.18 |
2004.09.09 |
2004.09.09 |
2004.09.09 |
2004.10.13 |
2004.10.13 |
2004.10.13 |
2004.11.17 |
2004.11.17 |
2004.11.17 |
2004.12.08 |
2004.12.08 |
2004.12.08 |
2005.01.06 |
2005.01.06 |
2005.01.06 |
2005.02.02 |
2005.03.02 |
採取時刻 |
1125 |
1030 |
1111 |
1045 |
1105 |
0950 |
1020 |
1042 |
1105 |
1045 |
0940 |
1025 |
0940 |
1130 |
1054 |
0930 |
1029 |
1003 |
1135 |
1030 |
1110 |
1050 |
1110 |
1000 |
0935 |
0938 |
0941 |
0944 |
0947 |
0951 |
1030 |
1010 |
気温 (℃) |
7.3 |
8.7 |
8.7 |
19.5 |
19.7 |
18.5 |
19.5 |
19.9 |
20.3 |
17.9 |
17.9 |
17.9 |
18 |
17.7 |
17.8 |
19.5 |
22 |
21.6 |
15.7 |
15.3 |
15.6 |
9.5 |
9.7 |
9.2 |
4.8 |
5.3 |
5.8 |
-2.5 |
-2.1 |
-1.7 |
-2.8 |
-4.1 |
水温 (℃) |
7 |
7.2 |
7 |
9.7 |
8 |
13.5 |
18.5 |
11.1 |
10.2 |
7.5 |
18.5 |
13 |
20 |
13.4 |
14 |
20.3 |
15.5 |
18.2 |
12.9 |
14.2 |
13.7 |
7.1 |
6.6 |
8.4 |
6 |
5.8 |
5.6 |
1.5 |
2 |
2 |
1 |
0.7 |
流量 (m3/s) |
86.95 |
86.95 |
86.95 |
42.48 |
42.48 |
42.48 |
9.67 |
9.67 |
9.67 |
36.62 |
36.62 |
36.62 |
23.36 |
23.36 |
23.36 |
32.03 |
32.03 |
32.03 |
31.11 |
31.11 |
31.11 |
71.46 |
71.46 |
71.46 |
76.34 |
76.34 |
76.34 |
27.41 |
27.41 |
27.41 |
17.92 |
11.2 |
採取水深 (m) |
57 |
0.5 |
30 |
30 |
61 |
0.5 |
0.5 |
25 |
55 |
47 |
0.5 |
25 |
0.5 |
48 |
25 |
0.5 |
44 |
20 |
42 |
0.5 |
20 |
20 |
40 |
0.5 |
0.5 |
25 |
55 |
0.5 |
25 |
58 |
0.5 |
0.5 |
全水深 (m) |
58 |
58 |
58 |
62 |
62 |
62 |
56 |
56 |
56 |
48 |
48 |
48 |
49 |
49 |
49 |
45 |
45 |
45 |
43 |
43 |
43 |
41 |
41 |
41 |
56 |
56 |
56 |
59 |
59 |
59 |
|
|
透明度 (m) |
2.3 |
2.3 |
2.3 |
1.8 |
1.8 |
1.8 |
2.8 |
2.8 |
2.8 |
0.9 |
0.9 |
0.9 |
1.5 |
1.5 |
1.5 |
1.7 |
1.7 |
1.7 |
0.7 |
0.7 |
0.7 |
0.6 |
0.6 |
0.6 |
1 |
1 |
1 |
2 |
2 |
2 |
|
|
流況 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
平水 |
pH |
6.7 |
6.7 |
6.7 |
6.8 |
6.7 |
7.1 |
7.2 |
6.7 |
6.6 |
6.5 |
6.8 |
6.5 |
7 |
6.5 |
6.5 |
6.9 |
6.6 |
6.6 |
6.6 |
6.9 |
6.9 |
6.7 |
6.7 |
6.8 |
6.9 |
6.9 |
6.8 |
6.9 |
6.9 |
6.8 |
6.9 |
6.6 |
DO (mg/l) |
11 |
11 |
11 |
10 |
11 |
10 |
10 |
9.9 |
9.5 |
6.6 |
7.8 |
7.1 |
8.4 |
6.6 |
8.2 |
8.2 |
1.2 |
6.7 |
8.4 |
9.8 |
9.7 |
10 |
10 |
10 |
11 |
11 |
11 |
12 |
12 |
12 |
11 |
12 |
BOD (mg/l) |
0.6 |
0.5 |
0.5 |
0.6 |
0.6 |
0.7 |
1.2 |
< 0.5 |
< 0.5 |
0.6 |
0.9 |
0.5 |
1.3 |
0.6 |
0.5 |
0.7 |
0.9 |
0.9 |
1.3 |
1.2 |
1.2 |
1.1 |
1.1 |
1 |
1 |
0.9 |
0.9 |
0.7 |
0.6 |
0.7 |
0.6 |
0.9 |
COD (mg/l) |
1.3 |
1.4 |
1.3 |
1.2 |
1.1 |
1.6 |
2.4 |
1.2 |
1.1 |
1.4 |
2.4 |
1.9 |
2.1 |
2.8 |
2.2 |
1.9 |
2.4 |
2.3 |
3.3 |
2.3 |
2.7 |
3.4 |
3.4 |
3.2 |
2.1 |
2.2 |
2 |
1.7 |
1 |
1.2 |
1.7 |
2.6 |
SS (mg/l) |
3 |
2 |
2 |
2 |
2 |
2 |
2 |
1 |
2 |
3 |
5 |
2 |
3 |
38 |
32 |
5 |
26 |
7 |
45 |
10 |
16 |
26 |
30 |
19 |
7 |
15 |
11 |
1 |
1 |
1 |
2 |
1 |
大腸菌群数 (MPN/100ml) |
7.8E+00 |
7.8E+00 |
4.5E+00 |
1.3E+01 |
4.5E+00 |
6.8E+00 |
1.3E+01 |
< 1.8E+00 |
< 1.8E+00 |
7.8E+00 |
7.9E+02 |
7.9E+01 |
1.7E+02 |
3.3E+02 |
4.9E+02 |
3.3E+01 |
1.7E+03 |
4.9E+02 |
3.3E+02 |
7.9E+02 |
1.3E+03 |
4.9E+02 |
1.1E+02 |
1.7E+03 |
1.7E+02 |
7.9E+02 |
3.3E+02 |
4.9E+01 |
1.3E+01 |
2.3E+01 |
1.3E+01 |
< 1.8E+00 |
全窒素 (mg/l) |
0.26 |
0.3 |
0.24 |
0.26 |
0.28 |
0.26 |
0.3 |
0.26 |
0.3 |
0.37 |
0.33 |
0.3 |
0.45 |
0.51 |
0.49 |
0.27 |
0.43 |
0.3 |
0.66 |
0.41 |
0.46 |
0.53 |
0.5 |
0.47 |
0.35 |
0.41 |
0.36 |
0.33 |
0.31 |
0.31 |
0.39 |
1.4 |
全燐 (mg/l) |
0.011 |
0.008 |
0.009 |
0.008 |
0.02 |
0.009 |
0.014 |
0.009 |
0.009 |
0.009 |
0.017 |
0.012 |
0.016 |
0.066 |
0.053 |
0.011 |
0.042 |
0.014 |
0.049 |
0.018 |
0.024 |
0.033 |
0.032 |
0.022 |
0.016 |
0.021 |
0.019 |
0.012 |
0.008 |
0.009 |
0.009 |
0.009 |
カドミウム (mg/l) |
|
|
|
|
|
< 0.001 |
|
|
|
|
< 0.001 |
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
< 0.001 |
|
|
|
< 0.001 |
|
|
|
< 0.001 |
全シアン (mg/l) |
|
|
|
|
|
N |
|
|
|
|
N |
|
|
|
|
N |
|
|
|
|
|
|
|
N |
|
|
|
N |
|
|
|
N |
鉛 (mg/l) |
|
|
|
|
|
< 0.005 |
|
|
|
|
< 0.005 |
|
|
|
|
< 0.005 |
|
|
|
|
|
|
|
< 0.005 |
|
|
|
< 0.005 |
|
|
|
< 0.005 |
六価クロム (mg/l) |
|
|
|
|
|
< 0.02 |
|
|
|
|
< 0.02 |
|
|
|
|
< 0.02 |
|
|
|
|
|
|
|
< 0.02 |
|
|
|
< 0.02 |
|
|
|
< 0.02 |
砒素 (mg/l) |
|
|
|
|
|
< 0.001 |
|
|
|
|
0.001 |
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
0.002 |
|
|
|
0.001 |
|
|
|
< 0.001 |
総水銀 (mg/l) |
|
|
|
|
|
< 0.0005 |
|
|
|
|
< 0.0005 |
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
< 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 |
|
|
|
|
|
|
|
|
アンモニア性窒素 (mg/l) |
|
|
|
< 0.1 |
< 0.1 |
< 0.1 |
|
|
|
< 0.1 |
< 0.1 |
< 0.1 |
|
|
|
< 0.1 |
< 0.1 |
< 0.1 |
|
|
|
< 0.1 |
< 0.1 |
< 0.1 |
|
|
|
< 0.1 |
< 0.1 |
< 0.1 |
|
< 0.1 |
クロロフィル-a (ug/l) |
|
|
|
< 2 |
< 2 |
3 |
|
|
|
< 2 |
2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
|
|
< 2 |
< 2 |
< 2 |
|
< 2 |
透視度 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
55 |
> 100 |
90 |
14 |
18 |
> 100 |
15 |
70 |
18 |
39 |
35 |
24 |
23 |
25 |
52 |
51 |
46 |
> 100 |
> 100 |
> 100 |
> 100 |
> 100 |
ほう素 (mg/l) |
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
|
0.23 |
0.27 |
0.22 |
|
|
|
0.24 |
0.17 |
0.18 |
|
|
|
0.11 |
0.19 |
0.14 |
|
|
|
0.16 |
0.16 |
0.17 |
|
|
|
0.23 |
0.23 |
0.24 |
|
0.89 |