Agriculture Reference
In-Depth Information
TABLE 8:
The concentration of NO
3
-N and COD
Mn
in stream water of 27 monitoring sites.
Monitoring site
NO
3
-N
COD
Mn
NO
3
-N
(mg/L)
Standard
limit
Type
COD
Mn
(mg/L)
Standard
limit
Type
1
1.6
10
Not exceeding
2.4
4
II
2
1.26
10
Not exceeding
2.2
4
II
3
0.79
10
Not exceeding
2.3
4
II
4
3.14
10
Not exceeding
2.1
4
II
5
0.46
10
Not exceeding
3.2
4
II
6
1.67
10
Not exceeding
1.9
2
I
7
2.69
10
Not exceeding
1.5
2
I
8
0.66
10
Not exceeding
2.5
4
II
9
1.95
10
Not exceeding
1.5
2
I
10
3.4
10
Not exceeding
6
6
III *
11
2.57
10
Not exceeding
4.4
6
III *
12
12
10
Exceeding *
7.4
10
IV **
13
1.09
10
Not exceeding
2.6
4
II
14
0.86
10
Not exceeding
1.4
2
I
15
1.06
10
Not exceeding
1.5
2
I
16
0.37
10
Not exceeding
2.7
4
II
17
0.18
10
Not exceeding
4.9
6
III *
18
1.68
10
Not exceeding
1.4
2
I
19
1.72
10
Not exceeding
3.2
4
II
20
1.78
10
Not exceeding
1.3
2
I
21
1.88
10
Not exceeding
2.1
4
II
22
1.6
10
Not exceeding
4.4
6
III *
23
1.33
10
Not exceeding
4
4
II
24
1.51
10
Not exceeding
3.9
4
II
25
1.51
10
Not exceeding
4
4
II
26
3.51
10
Not exceeding
1
2
I
27
1.76
10
Not exceeding
1.6
2
I
