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 |
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1973 |
2221 |
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1974 |
1047 |
2111 |
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1975 |
1928 |
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1976 |
566 |
1582 |
25 |
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1977 |
1511 |
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1978 |
608 |
1272 |
60 |
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1979 |
922 |
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1980 |
710 |
846 |
66 |
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1981 |
841 |
|||||||
1982 |
644 |
746 |
87 |
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1983 |
535 |
|||||||
1984 |
772 |
569 |
130 |
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1985 |
836 |
518 |
134 |
|||||
1986 |
754 |
511 |
145 |
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1987 |
840 |
479 |
170 |
|||||
1988 |
885 |
454 |
210 |
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1989 |
830 |
436 |
250 |
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1990 |
702 |
458 |
252 |
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1991 |
583 |
296 |
245 |
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1992 |
501 |
279 |
219 |
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1993 |
417 |
242 |
188 |
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1994 |
378 |
274 |
167 |
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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 |