Person: Plehn, Wolfgang
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Wolfgang
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Veröffentlichung Weiterentwicklung des Geruchsmessverfahrens für Bauprodukte(2021) Brandt, S.; Brozowski, Frank; Horn, Wolfgang; Plehn, WolfgangEmissions or odours occurring from building products and furnishings for interiors, like floor coverings or wall panels, should not have a negative impact on well-being or health. Odours can be measured applying the standard ISO 16000-28 "Indoor air - Determination of odour emissions from building products using test chambers". It describes among other procedures the assessment of perceived intensity with comparative scale by a group of panellists. In the study presented here, proposals for further technical development of the methodology are discussed to increase the reproducibility of measurement results. The sampling procedure and evaluation method of perceived intensity are investigated in particu-lar because they have a major influence at the assessment of construction products applying the procedure of the Commit-tee for Health Evaluation of Building Products. © 2021, VDI Fachmedien GmBbH & Co.. All rights reserved.Veröffentlichung Hydrofluorocarbon emission reduction: a crucial contribution to climate protection(Umweltbundesamt, 2021) Graaf, Daniel de; Elsner, Cornelia; Graaf, Daniel de ; Hoffmann, Gabriele; Martens, Kerstin; Plehn, Wolfgang; Thalheim, Diana; Deutschland. UmweltbundesamtHydrofluorocarbons (HFCs) are the dominant fraction of fluorinated greenhouse gases, also known as F-gases. HFC emissions in the European Union (EU) amounted to 112 million tonnes CO2 equivalent (Mt CO2eq.) in 2018. This amounts to 2,2% of the EU's total greenhouse gas emissions. Main sources of HFC emissions are refrigeration and air conditioning plants and appliances. Following a proposal by the EU Commission, EU member states and the EU parliament just recently agreed to increase the 2030 target from 40% to 55% reduction of greenhouse gas emissions compared to the 1990 level. This considerable step-up of climate ambition by more than a third needs to be reflected also in the revision process of the F-gas Regulation, regardless of the achievements already made to curb F-gas emissions. On the occasion of the F-gas Regulation revision, the German Environment Agency proposes the acceleration of the phase-down scenario, resulting in larger reduction steps from 2024 on and a final level of 10% of the baseline by 2030 compared to 21% according to the current schedule. Source: www.umweltbundesamt.de