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Are we moving in the right direction?
Norway’s ammonia emissions rose by about 17 per cent from 1990 to 1996. This was mainly a result of higher emissions from private cars fitted with three-way catalytic convertors, but also increased agricultural activity and changes in the storage and use of manure. After 1996 emissions have varied, but with a declining trend. In 2009 total emission were about 22 000 tonnes, according to preliminary figures from Statistics Norway.
In Europe ammonia emissions declined by 20 per cent between the years 1990 and 2005. The reduction in emissions was primarily due to reduced emissions from the agricultural sector; there was a reduction in livestock numbers, changes in the handling and management of organic manures and a decrease in the use of nitrogenous fertilisers.
Under the Gothenburg Protocol, Norway’s emission ceiling for ammonia is 23 000 tonnes in 2010. Projections indicate that the measures already introduced will maintain a fairly stable level of ammonia emissions, so that Norway will achieve its commitment under the Gothenburg Protocol without introducing any significant changes in instruments.