Continued Emissions of the Ozone-Depleting Substance Carbon Tetrachloride From Eastern Asia.
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Lunt MF
School of Chemistry, University of Bristol, Bristol, UK.
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Park S
Kyungpook Institute of Oceanography, College of Natural Sciences, Kyungpook National University, Daegu, South Korea.
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Li S
Kyungpook Institute of Oceanography, College of Natural Sciences, Kyungpook National University, Daegu, South Korea.
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Henne S
Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland.
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Manning AJ
Hadley Centre, UK Met Office, Exeter, UK.
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Ganesan AL
School of Geographical Sciences, University of Bristol, Bristol, UK.
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Simpson IJ
Department of Chemistry, University of California, Irvine, CA, USA.
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Blake DR
Department of Chemistry, University of California, Irvine, CA, USA.
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Liang Q
Atmospheric Chemistry and Dynamics, NASA Goddard Space Flight Center, Greenbelt, MD, USA.
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O'Doherty S
School of Chemistry, University of Bristol, Bristol, UK.
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Harth CM
Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA.
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Mühle J
Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA.
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Salameh PK
Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA.
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Weiss RF
Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA.
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Krummel PB
Climate Science Centre, CSIRO Oceans and Atmosphere, Aspendale, Victoria, Australia.
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Fraser PJ
Climate Science Centre, CSIRO Oceans and Atmosphere, Aspendale, Victoria, Australia.
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Prinn RG
Center for Global Change Science, Massachusetts Institute of Technology, Cambridge, MA, USA.
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Reimann S
Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland.
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Rigby M
School of Chemistry, University of Bristol, Bristol, UK.
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Published in:
- Geophysical research letters. - 2018
English
Carbon tetrachloride (CCl4) is an ozone-depleting substance, accounting for about 10% of the chlorine in the troposphere. Under the terms of the Montreal Protocol, its production for dispersive uses was banned from 2010. In this work we show that, despite the controls on production being introduced, CCl4 emissions from the eastern part of China did not decline between 2009 and 2016. This finding is in contrast to a recent bottom-up estimate, which predicted a significant decrease in emissions after the introduction of production controls. We find eastern Asian emissions of CCl4 to be 16 (9-24) Gg/year on average between 2009 and 2016, with the primary source regions being in eastern China. The spatial distribution of emissions that we derive suggests that the source distribution of CCl4 in China changed during the 8-year study period, indicating a new source or sources of emissions from China's Shandong province after 2012.
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hybrid
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https://fredi.hepvs.ch/global/documents/63102
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