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Halons
Compounds, also known as bromofluorocarbons, that contain bromine, fluorine, and carbon. They are generally used as fire extinguishing agents and cause ozone depletion. Bromine is many times more effective at destroying stratospheric ozone than chlorine. See ozone depleting substance. (source: EPA) Background from Wikipedia The haloalkane (also known as halogenoalkanes) are a group of chemical compounds, consisting of alkanes, such as methane or ethane, with one or more halogens linked, such as chlorine or fluorine, making them a type of organic halide. They are known under many chemical and commercial names. As fire extinguishants, propellants and solvents they have or had wide use. Some haloalkanes have negative effects on the environment such as ozone depletion. The most widely known family within this group are the chlorofluorocarbons (CFCs). Washington Post,But those cooling units have traditionally relied on chlorofluorocarbons (CFCs) and the fire-extinguishing systems on gases known as halons -- substances All Sorts of Holes - Oct 1, 2007 Corante,Nature quotes researcher Marcus Rex: "Overwhelming evidence still suggests that anthropogenic emissions of CFCs and halons are the reason for the ozone loss Ozone hole back, but levels steady - Sep 27, 2007 Courier Mail,Halons, used as fire extinguishing chemicals, also destroy ozone. The World Meteorological Organisation expects ozone levels to return to pre-ozone-hole SUMMARY OF THE NINETEENTH MEETING OF THE PARTIES TO THE MONTREAL ... - Sep 23, 2007 Earth Negotiations Bulletin,The Protocol introduced control measures for some CFCs and halons for developed countries (non-Article 5 parties). Developing countries (Article 5 parties) Avoid ozone depletion, use alternative products, EMB warns - Sep 30, 2007 Philippine Information Agency,There are ozone depleting substance that is hazardous to health and destroys the ozone such as chlorofluorocarbon (CFC) and halons. US: Methyl bromide gets reprieve - Oct 15, 2007 FreshPlaza,...ozone in the stratosphere — chlorofluorocarbons, halons, carbon tetrachloride and methyl chloroform — are to be phased out internationally by 2000. Chemists poke holes in ozone theory - Sep 26, 2007 Nature.com (subscription),..."Overwhelming evidence still suggests that anthropogenic emissions of CFCs and halons are the reason for the ozone loss. But we would be on much firmer HSU dedicates futuristic green building - Oct 9, 2007 The Eureka Reporter,The heating, ventilation, air conditioning and refrigeration systems contain no hydrochlorofluorocarbons or halons. Showers on the first floor encourage Ozone recovery workshop opens in Kano - Oct 4, 2007 The Tide,Scientists in 1986 discovered a hole in the ozone layer, caused by the use of ODS, including Chloroflurocarbons (CFCs), methyl bromide and halons. Nigeria gets N4bn to combat ozone depleting substances - Oct 3, 2007 Business Day,Science has proven that emissions of man made chemicals including chlorofluocarbons, hydrofluorocarbons, halons, methyl bromide and other ozone depleting RSG determined to phase out Ozone depleting substances - Sep 25, 2007 The Tide,...countries like Nigeria till 2010, Shell had effectively phased out the use of halons and Chlorofluoro carbons (CRC’s) in its operations since 2005. International agreement to accelerate phase-out of greenhouse gas ... - Sep 24, 2007 Media Newswire (press release),...and 115 ) and several Halons ( 1211, 1301, 2402 ). 2. The Montreal Protocol on Substances that Deplete the Ozone Layer was adopted on 16 September 1987. ENVIRONMENT: Ozone Deal to Cut Down C02 Emissions - Sep 23, 2007 IPS,...of chlorofluorocarbons (CFCs) and halons, chemicals used as refrigerants, aerosol propellents, solvents, foam blowing agents and as fire extinguishers. Ozone-depleting substances smuggled into Zimbabwe - Jul 23, 2007 Legalbrief (subscription),Zimbabwe is expected to have terminated the use of chemicals such as halons used in fire-fighting and CFCs in refrigeration by 2009. Q&A: Global Fight to Protect the Ozone Layer Celebrates 20 Years - Aug 11, 2007 Inter Press Service (subscription),It eliminated the CFCs and halons and other controlled substances, which have been replaced by others that are much more beneficial for the protection of Drifting By Ice Floe To The North Pole - Jul 20, 2007 Science Daily (press release)...and the connection of ozone destruction with anthropogenic emissions of chlorofluorocarbons (CFCs) and halons has been proven beyond doubt. Qatar strengthens anti-ODS drive - Aug 6, 2007 Peninsula On-line,The main cause of the ozone layer depletion is due to the release of great amounts of ODS into the atmosphere, the most important of which are Halons Brunei gears up to reduce ozone depletion - Jul 19, 2007 The Brunei Times,CFCs have one of the highest ODP (0.6 to 1.0) out of all the ODS after Halons, according to UNEP statistics. From now on, the Royal Brunei Customs and Spin-offs from defence research - Mar 28, 2007 Hindu,The Montreal Protocol, to which India is a signatory, has called upon the parties to phase out the CFCs, halons and other man-made ozone-depleting chemicals Non-CO2 gases also cause global warming - Mar 29, 2007 Mongabay.com...production of ozone-depleting substances like chlorofluorocarbon compounds (CFCs) known as "freons" and bromofluorocarbon compounds known as Halons. Innovator and Pariah: The United States and Clean Air Legislation - Mar 19, 2007 Council on Foreign Relations,...such as chlorofluorocarbons (CFCs), which are used in refrigeration, and halons, which are used as fire-extinguishing agents. Ozone ban has been effective in fighting global warming - Mar 5, 2007 Mongabay.com...production of ozone-depleting substances like chlorofluorocarbon compounds (CFCs) known as "freons" and bromofluorocarbon compounds known as Halons. Report hails global action to save ozone layer - Mar 5, 2007 Rocky Mountain News,Two main ozone-eating culprits were the chlorine-containing chlorofluorocarbons, or CFCs, used in refigerants, and bromine-containing halons, used in fire Defence scientists develop new eco-friendly fire fighter - Feb 16, 2007 DailyIndia.com,...intelligent fire sensor, activated carbon spheroids for NBC applications and Hepta-flouro Propane for replacement of Halons in fire suppression. Louise Labuschagne, of the The Real IPM Company (Kenya) Ltd ... - Nov 24, 2006 FreshPlaza,...recognized the need for stronger measures to reduce the production and consumption of a number of CFCs and several Halons, including methyl bromide. 2010 will see ban on harmful chemical imports: official - Oct 12, 2006 Viet Nam News,The Ministry of Natural Resources and Environment has also formulated a national plan aiming to eliminate all consumption of CFCs and Halons during the 2005 ... Top Stories - Sep 29, 2006 The Westender,Environmental ministers from 24 nations, representing most of the industrialized world, agreed to set sharp limits on the use of CFCs (and Halons). ... Zimbabwe: Ozone Layer Depletion Will Have Serious Consequences for ... - Oct 2, 2006 AllAfrica.com,...based insulating foam in refrigeration, elimination of methyl bromide in tobacco, cut flower and grain storage, and total elimination of halons in municipal ... PRESERVATION OF THE OZONE LAYER - Sep 15, 2006 Press Information Bureau (press release),Protocol enjoined upon all the signatory nations to completely phase out harmful chemicals such as Chlorofluorocarbons (CFC), halons, Carbontetrachloride (CTC ... EAD highlights environmentally-friendly products for the consumer - Sep 14, 2006 AME Info,It has been banned since the 1970s in most countries. Other Ozone-depleting substances include Halons, Methyl Bromide, which is used in fire extinguishers. ... Stratospheric Ozone Layer: Mauritius is five years ahead of the ... - Sep 24, 2006 African News Dimension (subscription),...stipulates that the production and consumption of compounds that deplete ozone in the stratosphere--chlorofluorocarbons (CFCs), halons, carbon tetrachloride ... News index | RSS | News Feed Advertisements: Organic Apparel from Patagonia | Insect-repelling clothing |
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