Technique to trace persistent CFCs
A new discovery by scientists at the Universities of East Anglia and Frankfurt could make it possible in future to identify the source of banned CFCs that are probably still being released into the atmosphere.Using mass spectrometers, the researchers analyzed air samples collected in the stratosphere by balloons belonging to the French space agency, the Centre National d'Etudes Spatiales (CNES). They discovered the largest chlorine isotope enrichment ever found in nature.CFCs were banned in most countries because of their depletion of the ozone layer. Due to their long lifetimes, their atmospheric concentrations are expected to decline only slowly. However, the observed decline is even slower than what scientists predicted. The likely reasons for this are the continued use of CFCs and emissions from old refrigerators, air conditioning units and waste disposal."We are particularly excited by this discovery because this is a totally new observation for atmospheric chlorine," said Johannes Laube, of th
Technique to trace persistent CFCs
Ultrafine measurements of atmospheric gases could help scientists track down the last sources of CFCs thought to be slowing the recovery of the ozone hole.
Thu 2 Sep 10 from BBC News
New discovery could pave the way for identification of rogue CFC release
A new discovery by scientists at the Universities of East Anglia and Frankfurt could make it possible in future to identify the source of banned CFCs that are probably still being released into ...
Thu 2 Sep 10 from PhysOrg
Discovery Could Pave The Way For Identification Of Rogue CFC Release, Fri 3 Sep 10 from RedOrbit
Featured - New discovery could pave the way for identification of rogue CFC release, Thu 2 Sep 10 from Labspaces.net
New discovery could pave the way for identification of rogue CFC release, Thu 2 Sep 10 from R&D Mag
New technique could help ozone layer
NORWICH, England, Sept. 3 (UPI) -- A new way to measure atmospheric gases could track down sources of CFCs thought to be slowing the recovery of Earth's ozone layer, European researchers say. ...
Fri 3 Sep 10 from UPI
Ozone depletion: Paving the way for identification of rogue CFC release
A new discovery could make it possible in future to identify the source of banned CFCs that are probably still being released into the atmosphere. They have also discovered the largest chlorine ...
Thu 2 Sep 10 from ScienceDaily
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