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:3/30/2017)... -- Trends, opportunities and forecast in this market to ... AFIS, iris recognition, facial recognition, hand geometry, vein recognition, ... industry (government and law enforcement, commercial and retail, health ... and by region ( North America , ... , and the Rest of the World) ...
(Date:3/24/2017)... Research and Markets has announced the addition of the ... Forecast to 2025" report to their offering. ... The Global Biometric Vehicle Access System ... over the next decade to reach approximately $1,580 million by 2025. ... forecasts for all the given segments on global as well as ...
(Date:3/22/2017)... March 21, 2017 Vigilant Solutions , ... law enforcement agencies, announced today the appointment of retired ... of public safety business development. Mr. Sheridan ... experience, including a focus on the aviation transportation sector, ... recent position, Mr. Sheridan served as the Aviation Liaison ...
Breaking Biology News(10 mins):
(Date:4/20/2017)... ... 20, 2017 , ... Husson University will be celebrating students ... of knowledge during its Eighth Annual Research and Scholarship Day on ... During the event, undergraduates, graduate students, and faculty members from all of the ...
(Date:4/20/2017)... ... April 20, 2017 , ... Energetiq ... applications, announced today that Chief Executive Officer (CEO) Debbie Gustafson has been appointed ... the global industry association connecting the electronics manufacturing supply chain. The mission of ...
(Date:4/20/2017)... Dutch philosopher Koert van Mensvoort - founder of the Next Nature ... Eindhoven - has written a ,Letter to Humanity, in support of ... becoming a slave and victim to its own technology, but to employ technology ... ... Mensvoort – founder of the Next Nature Network and Fellow of ‘Next Nature’ ...
(Date:4/19/2017)... ... April 18, 2017 , ... The ... a key device for generating monodisperse droplets of known diameters for research applications ... generating monodisperse solid particles by drying monodisperse droplets. , The VOAG requires ...
Breaking Biology Technology: