Year
|
BOD5 1992-2012 (539)
|
BOD5 2000-2012 (1235)
|
Ammonium 1992-2012 (799)
|
Ammonium 2000-2012 (1336)
|
Rivers nitrate 1992-2012 (1059)
|
Rivers nitrate 2000-2012 (1653)
|
Rivers phosphate 1992-2012 (874)
|
Rivers phosphate 2000-2012 (1470)
|
1992
|
3.62
|
|
411
|
|
2.66
|
|
0.133
|
|
1993
|
3.7
|
|
419
|
|
2.57
|
|
0.134
|
|
1994
|
3.26
|
|
346
|
|
2.51
|
|
0.115
|
|
1995
|
3.06
|
|
305
|
|
2.45
|
|
0.119
|
|
1996
|
3.14
|
|
357
|
|
2.56
|
|
0.129
|
|
1997
|
3.01
|
|
301
|
|
2.49
|
|
0.12
|
|
1998
|
2.84
|
|
247
|
|
2.59
|
|
0.107
|
|
1999
|
2.75
|
|
200
|
|
2.41
|
|
0.099
|
|
2000
|
2.76
|
2.95
|
197
|
307
|
2.39
|
2.08
|
0.094
|
0.106
|
2001
|
2.75
|
2.89
|
177
|
302
|
2.32
|
2.03
|
0.091
|
0.101
|
2002
|
2.63
|
2.75
|
191
|
290
|
2.25
|
1.97
|
0.092
|
0.103
|
2003
|
2.45
|
2.68
|
195
|
280
|
2.19
|
1.94
|
0.087
|
0.103
|
2004
|
2.22
|
2.38
|
160
|
233
|
2.39
|
2.09
|
0.083
|
0.091
|
2005
|
2.14
|
2.32
|
152
|
211
|
2.23
|
1.99
|
0.086
|
0.092
|
2006
|
2.1
|
2.3
|
173
|
211
|
2.36
|
2.08
|
0.087
|
0.091
|
2007
|
2.14
|
2.36
|
167
|
217
|
2.3
|
2.01
|
0.083
|
0.092
|
2008
|
1.95
|
2.21
|
115
|
178
|
2.18
|
1.91
|
0.069
|
0.08
|
2009
|
2
|
2.16
|
122
|
170
|
2.06
|
1.82
|
0.07
|
0.079
|
2010
|
1.8
|
2.15
|
110
|
150
|
2.17
|
1.9
|
0.065
|
0.072
|
2011
|
1.79
|
2.12
|
111
|
155
|
2.09
|
1.82
|
0.061
|
0.07
|
2012
|
1.75
|
2.19
|
101
|
158
|
2.1
|
1.82
|
0.055
|
0.065
|