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HalocarbonsSynonymsHydrochlorofluorocarbons (HCFCs) |


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Report on the Unexpected Emissions of CFC-11 (WMO-No. 1268)
The Report was written by the Scientific Assessment Panel to the Montreal Protocol on Substances that Deplete the Ozone Layer. CFC-11 (CCl3F) was reportedly fully controlled under the Montreal Protocol since 2010. However, a 2018 scientific paper revealed that instead of decreasing, CFC-11 emissions were increasing. In reaction, the Protocol parties agreed to Decision XXX/3: Unexpected emissions of trichlorofluoromethane (CFC-11). This Report addresses: current and past observations of CFC-11 atmospheric abundances; information on the CFC-11 global and regional emission increase and subsequent ...
Published by: WMO ; 2021
The Report was written by the Scientific Assessment Panel to the Montreal Protocol on Substances that Deplete the Ozone Layer. CFC-11 (CCl3F) was reportedly fully controlled under the Montreal Protocol since 2010. However, a 2018 scientific paper revealed that instead of decreasing, CFC-11 emissions were increasing. In reaction, the Protocol parties agreed to Decision XXX/3: Unexpected emissions of trichlorofluoromethane (CFC-11). This Report addresses: current and past observations of CFC-11 atmospheric abundances; information on the CFC-11 global and regional emission increase and subsequent decrease; changes derived for emissions of dichlorodifluoromethane (CFC-12, CCl2F2) and carbon tetrachloride (CCl4); estimates of CFC-11 banks (CFC-11 that has been produced but has not yet been emitted); scenarios of future emissions and atmospheric concentrations; and the impact on the stratospheric ozone layer of the anomalous enhancement in CFC-11 emissions.
Language(s): English
Format: Digital (Free)ISBN (or other code): 978-92-63-11268-2
Tags: Global Atmosphere Watch Programme (GAW) ; Research ; Chlorofluorocarbons (CFC) ; Ozone depletion
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Handbook for the Montreal Protocol on substances that deplete the Ozone Layer - seventh edition
UNEP, 2006Since 1991 the publication of the Handbook for the Montreal Protocol on Substances that Deplete the Ozone Layer (1987) has proved to be an invaluable reference source for the decisions the Parties have made in the process of developing the ozone regime. The Handbook itself is published in response to the Parties’ decision (made in 1990) requesting the Secretariat to publish and update regularly a Handbook, setting out the Protocol, as adjusted and amended, together with the decisions of the Parties and other relevant material. Since then, the Protocol has been adjusted on six occasions and ame ...
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Available online: https://www.unenvironment.org/resources/report/handbook-montreal-protocol-substa [...]
Published by: UNEP ; 2006
Since 1991 the publication of the Handbook for the Montreal Protocol on Substances that Deplete the Ozone Layer (1987) has proved to be an invaluable reference source for the decisions the Parties have made in the process of developing the ozone regime. The Handbook itself is published in response to the Parties’ decision (made in 1990) requesting the Secretariat to publish and update regularly a Handbook, setting out the Protocol, as adjusted and amended, together with the decisions of the Parties and other relevant material. Since then, the Protocol has been adjusted on six occasions and amended on four. The changes these adjustments and amendments have made have been integrated into a single text which is included in this Handbook.
Language(s): English
Format: Digital (Free) (ill.)Tags: Ozone depletion ; Ozone layer ; Hydrofluorocarbons (HFC)
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Use of chlorofluorocarbons in hydrology : a guidebook
IAEA, 2006Development of the chlorofluorocarbon (CFC) technique as a tool for dating groundwater has occurred over the past 20 years, and a number of research publications have documented its use in specific aquifers. This publication is intended to facilitate a comparative analysis of CFC and isotope techniques and a wider use of the CFC technique under appropriate conditions, by providing a description of its scientific basis, sampling and measurement methods, interpretation and limitations of data, and a variety of case studies.
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Available online: http://www-pub.iaea.org/MTCD/publications/pdf/Pub1238_web.pdf
Published by: IAEA ; 2006
Development of the chlorofluorocarbon (CFC) technique as a tool for dating groundwater has occurred over the past 20 years, and a number of research publications have documented its use in specific aquifers. This publication is intended to facilitate a comparative analysis of CFC and isotope techniques and a wider use of the CFC technique under appropriate conditions, by providing a description of its scientific basis, sampling and measurement methods, interpretation and limitations of data, and a variety of case studies.
Language(s): English
Format: Digital (Free), Hard copy (ill., charts)ISBN (or other code): 978-92-0-100805-3
Tags: Water ; Hydrology ; Chlorofluorocarbons (CFC)
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IPCC National Greenhouse Gas Inventories Programme. Volume 3 Industrial Processes and Product Use
IPCC, 2006
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Available online: http://www.ipcc-nggip.iges.or.jp/public/2006gl/vol3.html
Published by: IPCC ; 2006
Collection(s) and Series: IPCC National Greenhouse Gas Inventories Programme
Language(s): English
Format: CD, DVD, Digital (Free)Tags: Environment and landscape ; Air pollution ; Industry ; Carbon dioxide (CO2) ; Observations ; Hydrofluorocarbons (HFC) ; Perfluorocarbons (PFCs) ; Sulfur hexafluoride (SF6) ; Intergovernmental Panel on Climate Change (IPCC)
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Montreal Protocol on Substances that deplete the Ozone Layer. 2002 Report of the Aerosols, Sterilants, Miscellaneous Uses and Carbon Tetrachloride Technical Options Committee (ATOC) : 2002 Assessment
UNEP, 2003In response to the scientific consensus that chlorofluorocarbons and halons deplete the ozone layer, the United Nations Environment Programme (UNEP) enacted the Montreal Protocol as the principal legal document to authorize the fight to reduce the production of substances that deplete the ozone layer. This document presents an assessment report compiled by the Sterilants, Miscellaneous Uses and Carbon Tetrachloride Technical Options Committee, and reveals the progress made in efforts to phase out the consumption of chlorofluorocarbons commonly used in aerosol sprays. It also puts forward recom ...
Montreal Protocol on Substances that deplete the Ozone Layer. 2002 Report of the Aerosols, Sterilants, Miscellaneous Uses and Carbon Tetrachloride Technical Options Committee (ATOC): 2002 Assessment
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Available online: http://www.unep.ch/ozone/pdf/atoc-assessment-2002.pdf
Published by: UNEP ; 2003
In response to the scientific consensus that chlorofluorocarbons and halons deplete the ozone layer, the United Nations Environment Programme (UNEP) enacted the Montreal Protocol as the principal legal document to authorize the fight to reduce the production of substances that deplete the ozone layer. This document presents an assessment report compiled by the Sterilants, Miscellaneous Uses and Carbon Tetrachloride Technical Options Committee, and reveals the progress made in efforts to phase out the consumption of chlorofluorocarbons commonly used in aerosol sprays. It also puts forward recommendations on how greater progress can be achieved.
Language(s): English
Format: Digital (Free)Tags: Atmosphere ; Ozone layer ; Hydrofluorocarbons (HFC) ; Aerosols
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