A detailed ammonia emission inventory for Denmark

This paper describes the method used to create an ammonia inventory for Denmark and presents the emission factors used and their justification. The total Danish emission for 1996 was 92,700 t NH4+–N, with agriculture accounting for nearly 99%. Emissions from animal manure accounted for 76% of agricultural emissions. We conclude that there will be a continued demand for inventories based on emission factors, despite their lack of physical and chemical realism, but that they will become more complex. This will place increased demands on the statistical information available and on the knowledge of the underlying science.