The Montreal Protocol on Substances that Deplete the Ozone Layer

Policy Document
The Vienna Convention for the Protection of the Ozone Layer: The  Montreal Protocol on Substances that Deplete the Ozone Layer

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Production and consumption of ozone-depleting substances Production and consumption of ozone-depleting substances Ozone-depleting substances (ODS) are long-lived chemicals that contain chlorine and/or bromine and can deplete the stratospheric ozone layer. This indicator quantifies the current state of the ozone layer, the progress being made towards meeting the EU’s Montreal Protocol commitments, as well as trends in the remaining uses of ODS within the EU. Context: The ozone layer refers to a region of the Earth’s atmosphere (the stratosphere) in which ozone ( O 3 ) is present in concentrations high enough to absorb most of the ultraviolet sun radiation. This natural phenomenon is essential for life on Earth because ultraviolet radiation damages living tissue. Ozone depletion refers to a steady decline of the ozone concentration in the stratosphere and a decrease in stratospheric ozone in the Polar Regions during the spring season. This has become widely known as the ‘ozone hole’. This phenomenon was first observed during the 1970s, when it was shown that the ozone hole was caused by complex chemical reactions in the atmosphere involving so-called ODS, which are almost exclusively a result of human industrial activity.
Production, sales and emissions of fluorinated greenhouse gases (F-gases) Production, sales and emissions of fluorinated greenhouse gases (F-gases) The indicator tracks trends since 1990 in anthropogenic emissions of the following fluorinated greenhouse gases (F-gases), differentiated by HFCs, PFCs and SF 6 . HFCs PFCs SF6 HFC-23 CF4   HFC-32 C2F6   HFC-41 C3F8   HFC-43-10mee C4F10   HFC-125 c-C4F8   HFC-134 C5F12   HFC-134a C6F14   HFC-152a     HFC-143     HFC-143a     HFC-227ea     HFC-236fa     HFC-245ca     The indicator also tracks trends since 2007 in the aggregated production, bulk imports, bulk exports and consumption of F-gases, differentiated, where available by HFCs, PFCs and SF 6 ; additional F-gases compared to the emissions list are marked in bold. HFCs PFCs SF6 HFC-23 CF4   HFC-32 C2F6   HFC-41 C3F8   HFC-43-10mee C4F10   HFC-125 c-C4F8   HFC-134 C5F12   HFC-134a C6F14   HFC-152a     HFC-143     HFC-143a     HFC-227ea     HFC-236cb     HFC-236ea     HFC-236fa     HFC-245ca     HFC-245fa     HFC-365mfc     ‘Net supply’ is a parameter derived from company reporting under the F-Gas Regulation that provides information on the actual use of (bulk) F-gases by EU industries. Net supply is calculated by firstly adding reported amounts for: production imports (bulk imports only, imports contained in products or equipment are not considered in the reporting under the F-Gas Regulation) stocks held on 1 January of the reporting year ‘other amounts collected for reclamation or destruction from within the EU’, and then subtracting the following reported amounts: exports (bulk exports only, exports contained in products or equipment are not considered in the reporting under the F-Gas Regulation) destruction (on-site by reporting companies and off-site within the EU on reporting companies’ behalf) amounts used as feedstock by reporting companies stocks held on 31 December of the reporting year.   Furthermore, the shares of intended applications of F-gas net supply in the latest available reporting year are given, differentiating between refrigeration and air-conditioning fire protection aerosols foams electrical equipment other, unknown or no information reported.
Production and consumption of ozone depleting substances Production and consumption of ozone depleting substances This indicator quantifies the production and consumption of ozone-depleting substances (ODS) in Europe. ODS are long-lived chemicals that contain chlorine or/and bromine and that destroy the stratospheric ozone layer.

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