Custom Search

Register
Sign In
Sign In Using Facebook

Rising Levels of NF3 in Atmosphere Thanks to Use for Gadgets Like Plasma TV

by Tanya on  October 28, 2008 at 10:48 AM

Environmental Health

  
     Text 
 Rising Levels of NF3 in Atmosphere Thanks to Use for Gadgets Like Plasma TV
Levels of nitrogen trifluoride NF3, a potent greenhouse gas, have risen dramatically in the atmosphere thanks to the rise in demand of electronic products like plasma TV.

According to a report in Nature News, nitrogen trifluoride is an extremely potent greenhouse gas used in the electronics industry, which is at least four times more abundant in the atmosphere than previously thought.


Scientists recommend that to better control its use, NF3 should be added to the list of gases regulated under future climate change agreements.

NF3 is 12,000-20,000 times more efficient at trapping heat than carbon dioxide, the best-known of six greenhouse gases regulated by the 1997 Kyoto protocol on climate change.

In the past ten years, NF3 has become an environmentally preferable alternative to more volatile perfluorocarbons.

It is now commonly used by manufacturers of plasma TVs and other flat panel displays as a source of reactive fluorine atoms, used to etch the silicon chips in the devices.

Because only very small amounts of the gas were thought to escape to the atmosphere in these processes - about 2 percent of all NF3 produced - it was long assumed that its contribution to man made global warming was negligible.

This notion was first challenged earlier this year when Michael Prather, an atmospheric chemist at the University of California in Irvine, questioned the commonly assumed emission rates of the gas.

Page 1 Page 1 | 2  Next
 Email Email   RSS Feeds RSS Feeds   Print this page Print   Save this page Save   Link Link   Syndicate Syndicate   Comments Comments   Bookmark and Share
 
Comment & Contribute
Be the first to comment!
* Your comment can be maximum of 2500 characters

Notify me when reply is posted
I agree to the terms and conditions
  

Related Links

X

Medindia Health Network

News Archive
Date :
Category :
Keyword :
Senior Health Center
Select a News Category
Feedback  Advanced Search
Last Updated - - Designed & Content Managed by Medindia Health Network Pvt Ltd. Hosted & Technical Support by FrontPoint Systems
DisclaimerThe contents of this site are for informational purposes only. Always seek the advice of a qualified physician for any doubts.
To Read full Disclaimer Click Here!
Best viewed with resolution 1024x768 px.
Advertise with us |  Medindia Copyright |  Privacy Policy | Terms of Use |  © All Rights Reserved 1997 - 2010