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Origin of acidifying depositions in the Netherlands, 2001

 SOxNOyNHxPotential acid
 %
Total232255100
Netherlands694156
North Sea42 6
International13111438
 
Source: RIVM.RIVM/EDC/Oct02

Development


Sources within the Netherlands still contribute most to the deposition of potential acid in the Netherlands, namely 56% of the total. The main contribution - 90% of NHX deposition - comes from agricultural sources in the Netherlands. This means that, according to calculations made on the basis of long-term meteorological data, 37% of total potential acid deposition in the Netherlands can be ascribed to this source. The calculations are based on provisional emission figures for 2001.

Policy


The acidification abatement policy also requires an international approach since there is a major transboundary component in acidification. International agreements have therefore been made about emission reductions.

Technical note


The calculations were made using the OPS (Operational Priority Substances) atmospheric transport and deposition model. For the first time, sources on the North Sea were also taken into consideration.

References


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This page was last changed on November 25, 2005  (version 01).