https://iir.umweltbundesamt.de/2022/ 2026-04-13T10:04:04+00:00 https://iir.umweltbundesamt.de/2022/ https://iir.umweltbundesamt.de/2022/_media/wiki/logo.png text/html 2024-11-06T13:47:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://iir.umweltbundesamt.de/2022/general/key_categories/start?rev=1730900869&do=diff Chapter 1.5 - Key Categories The table below shows the key category analysis for the current reporting year. Dominant source categories vary largely for different pollutants. The key category analysis was carried out in accordance with the EMEP/UNECE guidebook for the base year (1990/1995/2000) and the actual year. Due to missing information on uncertainties, a tier 1 key category analysis was selected. Thus, the table gives