IW1 Phosphorus

Loading values from point sources are based on statistics in VAHTI-register. VAHTI-register belongs to Finnish Environment Institute. Other loading sources and natural leaching values of phosphorus are based on estimations that are calculated in Finnish Evironment Institute.


A) Sources of phosphorus loading

Year
Industry
Municipalities
Other point sources
Agriculture
Scattered dwellings
Forestry
Airborne deposit
Natural leaching
1972
1172
2090
   
1973
2221
   
1974
1047
2111
   
1975
1928
   
1976
566
1582
25
   
1977
1511
   
1978
608
1272
60
   
1979
922
   
1980
710
846
66
   
1981
841
   
1982
644
746
87
   
1983
535
   
1984
772
569
130
   
1985
836
518
134
   
1986
754
511
145
   
1987
840
479
170
   
1988
885
454
210
   
1989
830
436
250
   
1990
702
458
252
   
1991
583
296
245
   
1992
501
279
219
   
1993
417
242
188
   
1994
378
274
167
   
1995
358
245
259
3 300
415
220
400
1800
1996
282
247
249
2 800
415
340
400
1800
1997
266
234
235
2 370
410
269
410
2700
1998
262
268
223
2 370
410
350
430
2700
1999
250
254
217
2 900
410
350
430
2700
2000
231
245
220
2 900
410
350
270
2700
2001
234
224
210
2 600
355
350
390
2700
2002
215
201
179
2 600
355
350
300
2700
2003
230
202
142
2 600
355
320
270
2700
2004
207
219
151
2 600
355
320
270
2700
2005
193
205
147
2 600
355
320
280
2700
2006
204
196
154
2 600
355
320
290
2700
2007
205
175
152
2 600
355
320
225
2700
2008
191
175
160
2 750
355
231
225
1600
2009
157
175
155
2 750
355
231
230
1600
2010
175
163
141
2 750
355
231
200
1600
2011
174
155
139
2 750
355
231
200
1600


B) Average loading of phosphorus in 2000–2011

Source
tonne/year
Share %
Point sources
558
13
Scattered dwellings
360
9
Forestry
298
7
Agriculture
2 675
64
Airborne deposit
263
6
Total
4 153
100

 

 Download data on a spreadsheet from here