Abstract

Since fluorine compounds have both high ozone depletion potential and high global warming potential, the study of hydrofluorocarbons (HFCs) and perfluorocarbons (PFCs) is crucial for climate change research. In this study, greenhouse gas (GHG) emissions from ozone-depleting industries in the Republic of Korea were estimated based on survey data on the use of fluorine compounds. This study is a response to the growing global attention to halocarbons that arose from the Kigali Amendment to the Montreal Protocol. Survey data on the consumption of fluorine compounds by application area were used to estimate emissions by applying the 2019 refinement IPCC Guidelines Tier 1a method. In addition, both the consumption ratio of fluorine compounds in the refrigeration and air conditioning application area and total fluorine compounds consumption by application area were compared with the values suggested by the UN Environment Programme to compare the current status with that in developing and developed countries. By comparing the derived GHG emissions with current emissions in the National Inventory Report, it was confirmed that 14,565 GgCO2eq of GHG emissions differed. In addition, through the replacement of fluorine compounds used as refrigerants, 14,422 GgCO2eq of the GHG emissions can be reduced.

Highlights

  • Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs), which are known to damage the ozone layer in the stratosphere, were widely used as refrigerants, blowing agents, electronic product cleaners, aerosols, extinguishing agents, and spray products before the environmental hazards were identified [1,2,3,4]

  • After the parties of the Montreal Protocol, which include all countries in the United Nations, signed the Kigali Amendment in 2016, the Montreal Protocol was rapidly strengthened to control additional hydrofluorocarbons (HFCs) and greenhouse gas (GHG) substances [12]

  • National Inventory Report (NIR) GHG emissions in 2018 were 8,822 GgCO2 eq, which differs by about 14,565 GgCO2 eq from the actual emissions estimated in this study

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Summary

Introduction

Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs), which are known to damage the ozone layer in the stratosphere, were widely used as refrigerants, blowing agents, electronic product cleaners, aerosols, extinguishing agents, and spray products before the environmental hazards were identified [1,2,3,4]. After the UN Environment Programme (UNEP) adopted the Montreal Protocol on the production and consumption of ozone-depleting substances (ODSs) [5,6,7,8,9,10,11], CFCs production and consumption were gradually reduced; CFCs’ use was banned outright in 2010. After the parties of the Montreal Protocol, which include all countries in the United Nations, signed the Kigali Amendment in 2016, the Montreal Protocol was rapidly strengthened to control additional hydrofluorocarbons (HFCs) and greenhouse gas (GHG) substances [12]. In response to recent amendments, including the Montreal Protocol [15,16,17,18], developed countries began to produce hydrofluorocarbons (HFCs) and perfluorocarbons (PFCs) to replace CFCs and HCFCs [19,20]. HFCs and PFCs have been listed as controlled GHGs by the Kyoto Protocol since 1997 [25,26]

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