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Perfluorocarbons
A group of human-made chemicals composed of carbon and fluorine only. These chemicals (predominantly CF4 and C2F6) were introduced as alternatives, along with hydrofluorocarbons, to the ozone depleting substances. In addition, PFCs are emitted as by-products of industrial processes and are also used in manufacturing. PFCs do not harm the stratospheric ozone layer, but they are powerful greenhouse gases: CF4 has a global warming potential (GWP) of 6,500 and C2F6 has a GWP of 9,200. See ozone depleting substance. (source: EPA) Background from Wikipedia Perfluorocarbons (or PFCs) are compounds derived from hydrocarbons by replacement of hydrogen atoms by fluorine atoms. PFC is 6500-9200 times more effective than carbon dioxide at trapping heat in the atmosphere [1], entirely non-toxic, and made up of atoms of carbon, fluorine, and/or sulfur. Bizjournals.com,...starting with carbon dioxide, followed by methane, and finally nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride. State has new reporting rules for greenhouse gases (2:23 pm) - Oct 12, 2007 Las Cruces Sun-News,The new rule adds reporting requirements for carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride. Greenhouse gas reporting on horizon - Oct 13, 2007 Farmington Daily Times,Those include carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride. The new regulations are the result of an TECHNICAL WORKSHOP ON EMISSIONS FROM AVIATION AND MARITIME TRANSPORT: - Oct 7, 2007 Earth Negotiations Bulletin,As a result of this study, in May 2000, the IMO decided to prohibit the use of perfluorocarbons on ships. IMO ASSEMBLY (2003): At its 2003 Assembly, Report recommends emissions trading market for California - Jul 27, 2007 San Jose Mercury News,Regulate carbon dioxide and, in certain cases, the industrial gases hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride. New environmental legislation promoting purchase of green vehicles - Aug 4, 2007 EmpireStateNews.net,...contributor to warming temperatures worldwide, in addition to methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride. New law to require greenhouse gas stickers on new vehicles - Aug 3, 2007 WCAX,The index would be based on emissions of carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride. DUBAL to trade 'carbon credits' - Jul 30, 2007 ArabianBusiness.com,The project is aimed at capitalising on new technology DUBAL has installed to reduce emissions of perfluorocarbons (PFCs) given off during from the smelting Masdar and DUBAL sign agreement to monetize greenhouse gas reductions - Jul 30, 2007 AME Info (press release),...will address a new technology to be implemented by DUBAL to reduce emissions of perfluorocarbons (PFCs) during the electrolytic reduction of aluminium. Trading Carbon Emissions Stocks - Jul 24, 2007 Seeking Alpha,...trades in the emissions of six gasses including carbon dioxide, methane, nitrous oxide, sulfur hexafluoride, perfluorocarbons and hydrofluorocarbons. Second Major US Climate Change Science Program Report Issued - Jul 23, 2007 Mondaq News Alerts (subcription),...hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride, instead of simply modeling for CO2. The Report notes that the various scenario outcomes, ~ EARTH TALK ~ - Apr 12, 2007 Ventura County Reporter,...methane, nitrous oxide, sulfur hexafluoride, hydrochlorofluorocarbons (HCFCs) and perfluorocarbons (PFCs) — by 2012 in relation to 1990 levels. Medicine's Next Best Thing: Better Blood - Mar 16, 2007 abc7news.com,The man-made blood substitute called Oxycyte does just that. It's made from perfluorocarbons -- a compound similar to the non-stick Teflon in frying pans. Full Text - Mar 29, 2007 Science Magazine (subscription)Fully fluorinated gases, including SF 6 and perfluorocarbons such as CF 4 , form another distinct group of greenhouse gases. Their sources include aluminum Barbecue grills are health hazard in several ways - Apr 8, 2007 Pocono Record,...methane, nitrous oxide, sulfur hexafluoride, hydrochlorofluorocarbons HCFCs and perfluorocarbons PFCs — by 2012 in relation to 1990 levels. Greenhouse gases - Apr 2, 2007 Sydney Morning Herald,...hydrofluorocarbons, or HFCs, which were introduced to replace the CFCs; and perfluorocarbons, or PFCs, emitted by the aluminium industry. Nanoparticles can Track Cells Deep Within Living Organisms - Apr 2, 2007 Nanotechnology.net (press release),...no one would have predicted that you could get enough signal from such small quantities of perfluorocarbons in labeled stem cells to actually see them. How much is carbon worth? - Mar 31, 2007 Monsters and Critics.com,...on the amount of carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride their respective products emit. Non-CO2 gases also cause global warming - Mar 29, 2007 Mongabay.comThe authors also mention fully fluorinated gases, including SF6 and perfluorocarbons such as CF4, as another distinct group of greenhouse gases that is Shifting Into Neutral - Mar 27, 2007 The Green Guide,...hydrofluorocarbons and perfluorocarbons—per person per year. But where most of us see a problem, a few resourceful entrepreneurs saw an opportunity. Better blood - Mar 7, 2007 News 14 Carolina,It's made from perfluorocarbons (PFCs), a compound similar to non-stick Teflon in frying pans. He says when you take a carbon atom and add fluoride to it, RP joins global move to address climate change - Mar 1, 2007 Sun.Star,...in the atmosphere of greenhouse gases such as carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride. "Angry Snowmen" Mark Kyoto Protocol's 2nd Year in Motion - Feb 18, 2007 Sofia News Agency,...hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulphur hexafluoride (SF6) by 5.2 percent of 1990 levels during the five-year period 2008-2012. Romania Commissions CO2 Tech to Outline Kyoto Protocol (14/02/2007) - Feb 14, 2007 Energy.gr,...pollutants: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) hydrofluorocarbons (HFCs) perfluorocarbons (PFCs) and sulphur hexafluoride (SF6). Perfluorocarbon Nanoparticles Track Living Cells - Mar 4, 2007 Nanotechwire.com,Excellence (CCNE) have turned to a combination of fluorine-based magnetic resonance imaging (MRI) and nanoparticles made of liquid perfluorocarbons. EPA SEEKS PUBLIC COMMENT ON US GREENHOUSE GAS INVENTORY - Feb 21, 2007 World-Wire (press release)These gases include carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride. The draft report indicates that Give Us a Break - Feb 23, 2007 FAIR...nitrous oxide, methane, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride--rose by more than 11 percent from 1990 to 1998. HealthFirst-New blood technology - Feb 16, 2007 ABC12.com,It's made from perfluorocarbons, a compound similar to non-stick Teflon in frying pans. "When you take a carbon atom and add fluoride to it, it can carry a Artificial Blood - Nov 24, 2006 Sofia News Agency,The second was a snow-white, completely synthetic substance made from perfluorocarbons, or PFCs, a compound whose chemical makeup closely resembles the Global warming - A grave threat - Dec 5, 2006 The Brunei Times,The greenhouse gases are carbon dioxide, Methane, Hydrofluorocarbons, Perfluorocarbons, Sulfur hexafluoride. Today's atmospheric carbon dioxide levels are More Evidence of Global Warming - Nov 28, 2006 Infoshop NewsMore formidable greenhouse gases that are not known to occur naturally are hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF6) Imagine Earth without people - Oct 12, 2006 New Scientist (subscription),The atmosphere will bear traces of a few gases that don't occur in nature, especially perfluorocarbons such as CF 4 , which have a half-life of tens of ... The protocol's protocols - Oct 9, 2006 Toronto Star,Gases: Seeks to control emissions of six heat-trapping gases: carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulphur ... Climate change primer - Oct 8, 2006 BurlingtonFreePress.com,Powerful greenhouse gases that don't occur naturally include hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF6), which are ... Cabinet unveils emissions bill - Oct 5, 2006 Taiwan Journal,...agencies and lists common sources of six major greenhouse gases: carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur ... New bill aims to cut greenhouse gases - Sep 21, 2006 Taiwan Headlines,...agencies to curb emissions of five major greenhouse gases, namely carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur ... Calif. greenhouse gas bill draws praise, cautions - Sep 22, 2006 People's Weekly WorldBesides carbon dioxide, the bill lists as greenhouse gases methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride. ... News index | RSS | News Feed Advertisements: Organic Apparel from Patagonia | Insect-repelling clothing |
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