Modelling the spatial distribution of ammonia emissions in the UK

S. Hellsten, U. Dragosits, C. J. Place, M. Vieno, A. J. Dore, T. H. Misselbrook, Y. S. Tang, M. A. Sutton

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Abstract

Ammonia emissions (NH3) are characterised by a high spatial variability at a local scale. When modelling the spatial distribution of NH3 emissions, it is important to provide robust emission estimates, since the model output is used to assess potential environmental impacts, e.g. exceedance of critical loads. The aim of this study was to provide a new, updated spatial NH3 emission inventory for the UK for the year 2000, based on an improved modelling approach and the use of updated input datasets. The AENEID model distributes NH3 emissions from a range of agricultural activities, such as grazing and housing of livestock, storage and spreading of manures, and fertilizer application, at a 1-km grid resolution over the most suitable landcover types. The results of the emission calculation for the year 2000 are analysed and the methodology is compared with a previous spatial emission inventory for 1996. It is important to provide robust estimates of the spatial distribution of ammonia emissions, since the model output is used to assess potential environmental impacts, e.g. through the exceedance of critical loads
Original languageEnglish
Pages (from-to)370-379
Number of pages10
JournalEnvironmental Pollution
Volume154
Issue number3
DOIs
Publication statusPublished - 2008

Keywords

  • NH3
  • Mapping
  • Inventory
  • GIS
  • Spatial modelling

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