A detailed ammonia emission inventory for Denmark

This paper describes the method used to create an ammonia inventory for Den mark and presents the emission factors used and their justification. The to tal Danish emission for 1996 was 92,700 t NH4+-N, with agriculture accounti ng for nearly 99%. Emissions from animal manure accounted for 76% of agricu ltural emissions. We conclude that there will be a continued demand for inv entories based on emission factors, despite their lack of physical and chem ical realism, but that they will become more complex. This will place incre ased demands on the statistical information available and on the knowledge of the underlying science. (C) 2001 Elsevier Science Ltd. All rights reserv ed.