Navigation Links
UEA research reveals 4 new man-made gases in the atmosphere
Date:3/9/2014

Scientists at the University of East Anglia have identified four new man-made gases in the atmosphere all of which are contributing to the destruction of the ozone layer.

New research published today in the journal Nature Geoscience reveals that more than 74,000 tonnes of three new chlorofluorocarbons (CFCs) and one new hydrochlorofluorocarbon (HCFC) have been released into the atmosphere.

Scientists made the discovery by comparing today's air samples with air trapped in polar firn snow which provides a century-old natural archive of the atmosphere. They also looked at air collected between 1978 and 2012 in unpolluted Tasmania.

Measurements show that all four new gases have been released into the atmosphere recently and that two are significantly accumulating. Emission increases of this scale have not been seen for any other CFCs since controls were introduced during the 1990s. But they are nowhere near peak CFC emissions of the 1980s which reached around a million tonnes a year.

Lead researcher Dr Johannes Laube from UEA's School of Environmental Sciences said: "Our research has shown four gases that were not around in the atmosphere at all until the 1960s which suggests they are man-made."

"CFCs are the main cause of the hole in the ozone layer over Antarctica. Laws to reduce and phase out CFCs came into force in 1989, followed by a total ban in 2010. This has resulted in successfully reducing the production of many of these compounds on a global scale. However, legislation loopholes still allow some usage for exempted purposes.

"The identification of these four new gases is very worrying as they will contribute to the destruction of the ozone layer. We don't know where the new gases are being emitted from and this should be investigated. Possible sources include feedstock chemicals for insecticide production and solvents for cleaning electronic components.

"What's more, the three CFCs are being destroyed very slowly in the atmosphere so even if emissions were to stop immediately, they will still be around for many decades to come," he added.


'/>"/>

Contact: Lisa Horton
l.horton@uea.ac.uk
44-016-035-92764
University of East Anglia
Source:Eurekalert

Related biology news :

1. UT Arlington undergrad honored for research on antibiotic resistant infection
2. Promising news for solar fuels from Berkeley Lab researchers at JCAP
3. A moving lab for atmospheric research was set up at Hyytiälä, Finland
4. MARC Travel Awards announced for the 2014 GSA: 55th Annual Drosophila Research Conference
5. Alzheimers research team employs stem cells to understand disease processes and study new treatment
6. Researchers capture most complete picture of gene expression in cancer cell cycle
7. Scripps Wellderly Genome Resource now available to researchers
8. Researchers find potential target for drug to treat allergic asthma
9. CHOP researcher finds more genetic signals linking weight and heart health risk factors
10. New research seeks beneficial qualities of viruses
11. New probes from Scripps research quantify folded and misfolded protein levels in cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/19/2016)... UAE, April 20, 2016 The ... as a compact web-based "all-in-one" system solution for all ... fingerprint reader or the door interface with integration authorization ... access control systems. The minimal dimensions of the access ... into the building installations offer considerable freedom of design ...
(Date:4/14/2016)... 2016 BioCatch ™, the ... announced the appointment of Eyal Goldwerger as ... Goldwerger,s leadership appointment comes at a time of ... deployment of its platform at several of the world,s ... discerns unique cognitive and physiological factors, is a winner ...
(Date:3/31/2016)... , March 31, 2016  Genomics firm Nabsys has ... CEO, Barrett Bready , M.D., who returned to ... the original technical leadership team, including Chief Technology Officer, ... Product Development, Steve Nurnberg and Vice President of Software ... the company. Dr. Bready served as CEO ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... , June 23, 2016  Blueprint Bio, a ... discoveries to the medical community, has closed its Series ... Matthew Nunez . "We have received a ... the capital we need to meet our current goals," ... provide us the runway to complete validation on the ...
(Date:6/23/2016)... (PRWEB) , ... June 23, 2016 , ... ... is exhibiting at the Pennsylvania Convention Center and will showcase its product’s latest ... ClinCapture will also be presenting a scientific poster on Disrupting Clinical Trials in ...
(Date:6/23/2016)... 2016  Amgen (NASDAQ: AMGN ) today ... life sciences incubator to accelerate the development of ... space at QB3@953 was created to help high-potential life ... many early stage organizations - access to laboratory infrastructure. ... launched two "Amgen Golden Ticket" awards, providing each winner ...
(Date:6/22/2016)... Research and Markets has announced the addition of the ... The global biomarkers market ... 2013. The market is expected to grow at a five-year compound ... from $50.6 billion in 2015 to $96.6 billion in 2020. ... (2015 to 2020) are discussed. As well, new products approved in ...
Breaking Biology Technology: