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In 1989, the Montreal Protocol on Substances that Deplete the Ozone Layer entered into force. Its objective is to protect the stratospheric ozone layer by phasing out the production of ozone-depleting substances (ODS). The protocol covers around 100 individual substances with a high ozone-depleting potential (ODP), including chlorofluorocarbons (CFCs), halons, carbon tetrachloride (CTC), 1,1,1-trichloroethane (TCA), hydrochlorofluorocarbons (HCFCs), hydrobromofluorocarbons (HBFCs), bromochloromethane (BCM) and methyl bromide (MB), all of which are referred to as ‘controlled substances’.
Within the European Union (EU), the use of and trade in substances is regulated by Regulation (EC) No 1005/2009 (known as the Ozone Regulation). This regulation stipulates that all companies producing controlled substances or importing them into and/or exporting them out of the EU, as well as feedstock users, process agent users and destruction facilities, must report their activities concerning controlled substances annually. The Ozone Regulation also encompasses five additional ODS that are not covered by the Montreal Protocol. These ‘new substances’ are halon 1202, methyl chloride (MC), ethyl bromide (EB), trifluoroiodomethane (TFIM) and n-propyl bromide (n-PB). Producers, importers and exporters also have to report their activities for these new substances.
The European Environment Agency (EEA) is responsible for collecting, archiving, checking and aggregating information contained in these company reports. The EEA also supports the companies in fulfilling their reporting obligations. The data reported on production, imports and exports are presented to parties of the Montreal Protocol in order to monitor progress in phasing out ODS in compliance with the Protocol. In 2022, 198 companies reported on their 2021 activities under the Ozone Regulation.
The EU has already achieved its phase-out goals under the Montreal Protocol and reports on the uses that are still allowed.
This online data viewer summarises the most recent data reported by companies under the Ozone Regulation and looks at trends since 2006. Data from 2012 onwards were also updated, based on reports resubmitted after the reporting deadlines for these years.
Since the potential to harm the ozone layer varies among substances, results are expressed in both metric tonnes and ODP tonnes (see definition of ODP or ozone depleting potential in the terminology below). The observed trends can differ significantly depending on the unit used. Controlled substances with a relatively high ODP (e.g. CFCs and CTC) exhibit a different trend from those with a relatively low ODP (e.g. HCFCs).
Consumption is an aggregated parameter calculated for data reported under the Montreal Protocol (see Box 1 below). It integrates the statistics on imports, exports, production and destruction of controlled substances into one single metric, excluding non-virgin imports and exports. Amounts that are produced and imported for feedstock use within the EU and process agent use are not included in consumption figures, in line with calculations applied under the Montreal Protocol. New substances listed in Annex II to the Ozone Regulation are also excluded from consumption data.
In brief, consumption (which only applies to controlled substances) is calculated as follows:
CONSUMPTION = ADJUSTED PRODUCTION + ADJUSTED IMPORT - EXPORT - DESTRUCTION
In 2021, the consumption of controlled substances amounted to 1,176 metric tonnes, up from -2,688 metric tonnes in 2020. The single activities that contribute to ODS consumption are shown in the figure below. If the sum of production and imports exceeds the sum of exports and destruction, the consumption is positive, and vice versa. The positive consumption of controlled substances in 2021 can be explained by stockpiled quantities of CTC that were produced in the EU MS for a future feedstock use outside the EU. It is expected that these quantities will be exported next year, leading to an average negative consumption over both years. In recent years, the consumption of controlled substances has largely been driven by CTC, HCFCs and CFC consumption. Expressed in ODP tonnes, consumption in 2021 amounted to 1,627 ODP tonnes, up from -2,761 ODP tonnes in 2020.
Note: The geographical scope of the data presented is EU-27 for 2012, EU-28 for 2013-2019, EU-27 + UK for 2020 and EU-27 for 2021.
Sources: Data reported by companies to the European Environment Agency (EEA) under Article 27 of Regulation (EC) No 1005/2009 (EU Ozone Regulation).
In 2021, imports of controlled virgin substances into the EU amounted to 4,072 metric tonnes, which represents a 19% decrease compared with 2020. The imported controlled substances were almost entirely virgin substances and 80% of them were imported from China. Almost 79% of the imported virgin quantities were HCFCs, followed by MB and BCM. Controlled virgin substances were almost exclusively imported for feedstock use. Imports of controlled non-virgin substances amounted to about 2% of total imports. Expressed in ODP tonnes, imports of virgin halons and MB were largest.
Note: The geographical scope of the data presented is EU-25 for 2006, EU-27 for 2007-2012, EU-28 for 2013-2019, EU-27 + UK for 2020 and EU-27 for 2021.
Sources: Data reported by companies to the European Environment Agency (EEA) under Article 27 of Regulation (EC) No 1005/2009 (EU Ozone Regulation).
In 2021, exports of controlled virgin substances from the EU amounted to 39,262 metric tonnes, an increase of 94% compared with 2020. CTC accounted for the largest quantities of exported virgin substances, followed by HCFCs. CTC was mainly exported for feedstock use outside the EU (74% of total exports) and HCFCs mostly for feedstock use. Since almost no CTC was imported in 2021, the exported quantities were mainly produced in the EU or taken from stocks accumulated in previous years. Expressed in ODP tonnes, exports of virgin CTC were largest.
Note: The geographical scope of the data presented is EU-25 for 2006, EU-27 for 2007-2012, EU-28 for 2013-2019, EU-27 + UK for 2020 and EU-27 for 2021.
Sources: Data reported by companies to the European Environment Agency (EEA) under Article 27 of Regulation (EC) No 1005/2009 (EU Ozone Regulation).
As with imports, controlled non-virgin substances were exported out of the EU to a much lesser extent than controlled virgin substances, amounting to less than 1% of total exports when expressed in metric tonnes.
In 2021, the production of controlled substances in the EU amounted to 209,695 metric tonnes, a 27% increase compared with 2020. This included mostly production for feedstock of HCFCs, CTC and TCA. Only minor quantities of BCM, halons, CFCs and HBFCs, and no MB, were produced. Expressed in ODP tonnes, production of CTC and HCFCs was largest (81% and 9% of total production, respectively). Controlled substances were produced largely for feedstock use inside the EU (78% of the produced quantity in metric tonnes). Production for feedstock use inside the EU increased by 16% and production for process agent use also showed an increase in 2021 compared with 2020. Production for other uses, as accounted for in the estimation of the consumption of controlled substances (see Box 1 above and the section on consumption), increased by 91% in 2021 compared with 2020. This was mainly because the production for feedstock use outside the EU increased.
Note: The geographical scope of the data presented is EU-25 for 2006, EU-27 for 2007-2012, EU-28 for 2013-2019, EU-27 + UK for 2020 and EU-27 for 2021.
Sources: Data reported by companies to the European Environment Agency (EEA) under Article 27 of Regulation (EC) No 1005/2009 (EU Ozone Regulation).
In 2021, 4,755 metric tonnes of controlled substances were destroyed in total, a 22% decrease compared with 2020. This was the lowest recorded value since 2012. The largest quantities destroyed were of CTC, CFCs and HCFCs (72%, 15% and 7% of total destruction, respectively). Expressed in ODP, of the 4,753 ODP tonnes, the largest quantities destroyed were of CTC, CFCs and halons (79%, 15% and 5% of total destruction, respectively).
Note: The geographical scope of the data presented is EU-27 for 2009-2012, EU-28 for 2013-2019, EU-27 + UK for 2020 and EU-27 for 2021.
Sources: Data reported by companies to the European Environment Agency (EEA) under Article 27 of Regulation (EC) No 1005/2009 (EU Ozone Regulation).
A number of ODS serve as feedstock for the manufacture of other products such as refrigerants, foam blowing agents, polymers, pharmaceuticals and agricultural chemicals. In 2021, feedstock use amounted to 166,356 metric tonnes, an 11% increase compared with 2020. Feedstock availability was 166,921 metric tonnes in 2021, up by 17% from 2020. In total, feedstock availability (i.e. the production for feedstock use inside the EU plus the imports for feedstock use inside the EU) was 2% higher than feedstock use.
Note: The geographical scope of the data presented is EU-25 for 2006, EU-27 for 2007-2012, EU-28 for 2013-2019, EU-27 + UK for 2020 and EU-27 for 2021.
Sources: Data reported by companies to the European Environment Agency (EEA) under Article 27 of Regulation (EC) No 1005/2009 (EU Ozone Regulation).
In 2021, the emission rate [1] from feedstock uses was 0.02%. The 2021 average emission rate was slightly lower than the emission rate in 2020 and much lower than the emission rate for earlier years. This appears to point towards improvements in emission control by industry.
A process agent is a substance that either facilitates or inhibits a chemical reaction in an industrial process. In 2021, total make-up [2] and emissions stayed well below restrictions imposed by both the Montreal Protocol and the Ozone Regulation.
The Ozone Regulation is more stringent than the rules of the Montreal Protocol and encompasses new substances (halon 1202, n-PB, EB, TFIM and MC). In 2021, the production of new substances amounted to 872,440 metric tonnes, a 13% decrease compared with 2020. The production of new substances was almost exclusively for feedstock use and related to MC (more than 99% of total production), n-PB and EB. Expressed in ODP tonnes, the production of MC was also largest (98% of total production).
Note: The geographical scope of the data presented is EU-27 for 2009-2012, EU-28 for 2013-2019, EU-27 + UK for 2020 and EU-27 for 2021.
Sources: Data reported by companies to the European Environment Agency (EEA) under Article 27 of Regulation (EC) No 1005/2009 (EU Ozone Regulation).
In 2021, the production of new substances was about four times higher than the production of controlled substances expressed in metric tonnes. However, when expressed in ODP tonnes, the production of new substances was about four times lower than that of controlled substances in the same year. This is because new substances, on average, have a significantly lower ODP than controlled substances.
Note: The geographical scope of the data presented is EU-27 for 2009-2012, EU-28 for 2013-2019, EU-27 + UK for 2020 and EU-27 for 2021.
Sources: Data reported by companies to the European Environment Agency (EEA) under Article 27 of Regulation (EC) No 1005/2009 (EU Ozone Regulation).
Ozone-depleting substances (ODS)
ODS are substances, mainly compounds containing chlorine and/or bromine, that reach the stratosphere of the Earth and whose breakdown products react with the stratospheric ozone. This reduces the concentration levels of ozone in that region of the atmosphere (commonly known as the ozone layer) and thus the capacity of the atmosphere to filter ultraviolet light. Most known ODS are regulated under the Montreal Protocol.
Controlled substances
Controlled substances are ODS that are listed in Annex I of the Ozone Regulation and are subject to the reporting obligation of Article 7 of the Montreal Protocol.
Mixtures
The term ‘mixtures’ refers to gas mixtures consisting of multiple substances, at least one of which is a controlled substance. Destruction facilities are required to report the quantities of individual substances destroyed each year. In certain cases, however, companies were only able to report on the destruction of mixtures of controlled substances with an unknown composition. Therefore, these mixtures are not included in the data presented in this online data viewer and are not reported under the Montreal Protocol.
New substances
The term ‘new substances’ refers to the five additional substances covered by the EU Ozone Regulation that are not included within the scope of the Montreal Protocol: halon 1202, n-propyl bromide (n-PB), ethyl bromide (EB), trifluoroiodomethane (TFIM) and methyl chloride (MC). Companies in the EU are obliged to report on the import, export and production of these substances in line with the Ozone Regulation’s higher level of ambition than that of the Montreal Protocol. New substances should not be confused with virgin substances (see below).
Virgin substances
These are substances that have been produced and have not been previously used. Newly produced substances are, by definition, virgin.
Non-virgin substances
These are substances that have been previously used and subsequently recovered from products and equipment, and/or been recycled or reclaimed.
Feedstock
A number of ODS serve as chemical building blocks for the manufacture of other chemicals (i.e. as ‘feedstock’). They are used (directly or indirectly) for the manufacture of a diverse range of products including refrigerants, foam blowing agents, solvents, polymers, pharmaceuticals and agricultural chemicals.
Process agent
A process agent is a substance that either facilitates a chemical reaction or inhibits an intended chemical reaction in an industrial process.
Make-up
Make-up is the quantity of virgin, recovered or reclaimed controlled substances that has not been used in the process cycle before, and that is fed into the process cycle for the first time. For feedstock and process agent uses of controlled substances, make-up has to be reported, including the emissions generated during their use.
Ozone-depleting potential
The ozone-depleting potential (ODP) of a substance refers to the relative amount of ozone depletion caused by it. It is the ratio of the impact on ozone of the emission of a chemical substance to the impact of a similar emission by mass of CFC-11. The quantity in metric tonnes of a particular controlled substance is multiplied by its ODP to give its overall potential to deplete the ozone layer. For instance, 1 metric tonne of CFC-11 corresponds to 1 ODP tonnes (as its ODP is equal to 1), whilst for bromotrifluoromethane or halon 1301 (with an ODP = 10), 1 metric tonne corresponds to 10 ODP tonnes. The ODPs of controlled and new substances are listed in Annexes I and II of the Ozone Regulation. Some new substances have a range, rather than a single ODP value. In this online data viewer, the highest value of the ODP value range is used.
For references, please go to https://www.eea.europa.eu/themes/climate/ozone-depleting-substances-and-climate-change-1/ozone-depleting-substances-2022 or scan the QR code.
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