Continued Emissions of the Ozone‐Depleting Substance Carbon Tetrachloride From Eastern Asia
Name
2018GL079500.pdf
Description
Published version
Size
2.28 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Lunt, M. F.
Park, S.
Li, S.
Henne, S.
Manning, A. J.
Ganesan, A. L.
Simpson, I. J.
Blake, D. R.
Liang, Q.
O'Doherty, S.
Date Issued
October 2018
Journal
Geophysical Research Letters
Publisher
American Geophysical Union (AGU)
Citation
Lunt, M. F. et al. "Continued Emissions of the Ozone‐Depleting Substance Carbon Tetrachloride From Eastern Asia." Geophysical Research Letters 45, 20 (October 2018): 11,423-11,430 © 2018 The Authors
Version
Final published version
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Center for Global Change Science
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1029/2018gl079500
