Special Report on Safeguarding the Ozone Layer and the Global Climate System: Issues Related to Hydrofluorocarbons and Perfluorocarbons, Special Report of the Intergovernmental Panel on Climate Change, Cambridge, England, 2005.
www.epa.gov/ozone/science/ods/classone.html www.epa.gov/ozone/science/ods/classone.html
Consumer aerosol products in the US have not used ozone-depleting substances (ODS) since the late 1970s because of voluntary switching followed by federal regulation. The Clean Air Act and EPA regulations ... Class I Substance: one of several groups of chemicals with an ozone-depletion potential of 0.2 or higher...
www.epa.gov/Ozone/defns.html www.epa.gov/Ozone/defns.html
CFCs however, are not the only ozone-depleting chemicals. Other ODCs include the methylhalides, carbon tetrachloride (CCl4), carbon tetrafluoride (CF4), and the halons which contain bromine instead of chlorine.
www.ace.mmu.ac.uk/eae/Ozone_Depletion/Older/ODCs.html www.ace.mmu.ac.uk/eae/Ozone_Depletion/Older/ODCs.html
Problem: The production of ozone-depleting chemicals (ODCs) - primarily chlorofluorocarbons (CFCs) - poses a threat to the stratospheric ozone layer, which protects life on Earth from harmful ultraviolet radiation.
www.iisd.org/greenbud/climate.htm
Facilities reporting releases of Class I ozone depleting substances may have been legally using previously produced stocks or operating under essential use exemptions, or they may have been operating illegally. EPA is currently actively enforcing the CAA restrictions on uses of ozone depleting chemicals.
www.scorecard.org/chemical-groups/one-list.tcl?short_li... www.scorecard.org/chemical-groups/one-list.tcl?short_list_name=ods
CFCs however, are not the only ozone-depleting chemicals. Other ODCs include the methylhalides, carbon tetrachloride (CCl4), carbon tetrafluoride (CF4), and the halons which contain bromine instead of chlorine. Such compounds are called halocarbons.
www.theozonehole.com/odcs.htm www.theozonehole.com/odcs.htm
Despite a ban on the production of ozone-depleting halons by developed countries, the compounds continue to increase in the atmosphere according to a new study by the Commerce Department's National Oceanic and Atmospheric Administration.
www.publicaffairs.noaa.gov/pr98/feb98/noaa98-011.html
Environmental taxes are imposed on crude oil and petroleum products (oil spill liability), the sale or use of ozone-depleting chemicals (ODCs), and imported products containing or manufactured with ODCs.
www.irs.gov/publications/p510/ch03.html
The Recovery Trust for the Destruction of Ozone Depleting Substances also has information about ozone depleting substances. ... The Ministry for Economic Development manages the import and export of ozone depleting substances. For more information visit the Ministry for Economic Development website.
www.mfe.govt.nz/issues/ozone/depleting-substances/index... www.mfe.govt.nz/issues/ozone/depleting-substances/index.html
British scientists have discovered large quantities of ozone-depleting chemicals in the Antarctic atmosphere. ... Halogens in the lowest part of the atmosphere have important impacts on ozone depletion, the ability of the atmosphere to remove potentially harmful compounds, and aerosol formation, John Plane,
www.chinadaily.com.cn/world/2007-07/27/content_5444299.... www.chinadaily.com.cn/world/2007-07/27/content_5444299.htm