文章基本信息

标题：Contribution of Hydrofluorocarbons (HFCs) and Hydrofluoro-Olefins (HFOs) Atmospheric Breakdown Products to Acidification (“Acid Rain”) in the EU at Present and in the Future
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作者：Andy Lindley ; Archie McCulloch ; Tim Vink 等
期刊名称：Open Journal of Air Pollution
印刷版ISSN：2169-2653
电子版ISSN：2169-2661
出版年度：2019
卷号：8
期号：4
页码：81-95
DOI：10.4236/ojap.2019.84004
出版社：Scientific Research Publishing
摘要：While hydrogen fluoride (HF) and hydrogen chloride (HCl) are not considered main air-pollutants in the EU, they have the potential to contribute to acidification. Hydrofluorocarbons (HFCs), hydrofluoro-olefins (HFOs) and hydrochlorofluoro-olefins (HCFOs) are used as refrigerants and for other applications. They break down in the atmosphere to produce HF and HCl (for HCFOs) and some of these fluorocarbons also break down to produce trifluoroacetic acid (TFA). For the emissions of these fluorocarbons in the EU, a worst-case scenario estimates their theoretical potential contribution to acidification and compares it to the acidification potential for the main air pollutants contributing to acidification, which are nitrous oxides (NOx), sulphur oxides (mainly SO2), and ammonia (NH3). The Acidification Potential from these fluorocarbons in 2016 is estimated at 2, NOx, NH3, and it can be concluded that this is insignificant in the context of the main acidification air-pollutants. Assuming that the EU targets for emissions of SO2, NOx and NH3 by 2030 are achieved, the Acidification Potential from HFCs, HFOs and HCFOs in 2030 is also estimated at 2, NOx, NH3 and will remain insignificant.
关键词：Hydrofluorocarbons; Hydrofluoro-Olefins; Acidification; Hydrogen Fluoride