The report “Austria’s Informative Inventory Report (IIR) 2009” provides a complete and comprehensive description of the methodologies used for the compilation of Austrian’s Air Emission Inventory (“Österreichische Luftschadstoff-Inventur – OLI”) as presented in Austria’s 2009 submission under the Convention on Long-range Transboundary Air Pollution of the United Nations Economic Commission for Europe (UNECE/LRTAP). The aim of this report is to document the methodology in order to facilitate understanding of the calculation of the Austrian air pollutant emission data. The more interested reader is kindly refereed to the background literature cited in this document. As a party to the UNECE/LRTAP Convention Austria is required to annually report data on emissions of air pollutants covered in the Convention and its Protocols: these are the main pollutants NOx, SO2, NMVOC, NH3 and CO, Particulate Matter (PM), Persistent Organic Pollutants (POPs) and Heavy Metals (HM). To be able to meet this reporting requirement Austria compiles an Air Emission Inventory (“Österreichische Luftschadstoff-Inventur – OLI”) which is updated annually. This report follows the regulations under the UNECE/LRTAP Convention and its Protocols that define standards for national emission inventories. In 2008 the Executive Body adopted guidelines for estimating and reporting of emission data, which are necessary to ensure that the transparency, accuracy, consistency, comparability, and completeness (TACCC) of reported emissions are adequate for current LRTAP requirements (ECE/EB.AIR/2008/4). The emission data presented in this report were compiled according to these guidelines for estimating and reporting emission data, which also define the new format of reporting emission data (Nomenclature for Reporting – NFR) as well as standards for providing supporting documentation which should ensure the transparency of the inventory. The complete set of tables in the new NFR format, including sectoral reports, sectoral background tables and footnotes to the NFR tables, are submitted separately in digital form only. A summary of emission data is presented in the Annex to this report. The IIR 2009 at hand complements the reported emission data by providing background information. It follows the template of the “Informative Inventory Report – IIR”) as elaborated by the LRTAP Convention’s “Task Force on Emission Inventories and Projections – TFEIP”. But also the structure of this report follows closely the structure of Austria’s National Inventory Report (NIR) submitted annually under the United Nations Framework Convention on Climate Change (UNFCCC) which includes a complete and comprehensive description of methodologies used for compilation of Austria’s greenhouse gas inventory (UMWELTBUNDESAMT 2009). The first chapter of this report provides general information on the institutional arrangements for inventory preparation, on the inventory preparation process, methodologies and data sources used and on QA/QC activities. Furthermore it presents the Key Category Analysis and gives information on completeness and uncertainty of emission estimates. Chapter 2 gives on one hand information on reduction or stabilization targets as set out in the Protocols to the Convention compared to actual emission trends and on the other hand a full description of the emission trends by sector.
