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Quantifying aluminum and semiconductor industry perfluorocarbon emissions from atmospheric measurements

Kim, Jooil ; Fraser, Paul J. ; Li, Shanlan ; Mühle, Jens ; Ganesan, Anita L. ; Krummel, Paul B. ; Steele, L. Paul ; Park, Sunyoung ; Kim, Seung Kyu and Park, Mi Kyung , et al. (2014) In Geophysical Research Letters 41(13). p.4787-4794
Abstract

The potent anthropogenic perfluorocarbon greenhouse gases tetrafluoromethane (CF4) and hexafluoroethane (C2F6) are emitted to the atmosphere mainly by the aluminum and semiconductor industries. Global emissions of these perfluorocarbons (PFCs) calculated from atmospheric measurements are significantly greater than expected from reported national and industry-based emission inventories. In this study, in situ measurements of the two PFCs in the Advanced Global Atmospheric Gases Experiment network are used to show that their emission ratio varies according to the relative regional presence of these two industries, providing an industry-specific emission "signature" to apportion the observed emissions. Our... (More)

The potent anthropogenic perfluorocarbon greenhouse gases tetrafluoromethane (CF4) and hexafluoroethane (C2F6) are emitted to the atmosphere mainly by the aluminum and semiconductor industries. Global emissions of these perfluorocarbons (PFCs) calculated from atmospheric measurements are significantly greater than expected from reported national and industry-based emission inventories. In this study, in situ measurements of the two PFCs in the Advanced Global Atmospheric Gases Experiment network are used to show that their emission ratio varies according to the relative regional presence of these two industries, providing an industry-specific emission "signature" to apportion the observed emissions. Our results suggest that underestimated emissions from the global semiconductor industry during 1990-2010, as well as from China's aluminum industry after 2002, account for the observed differences between emissions based on atmospheric measurements and on inventories. These differences are significant despite the large uncertainties in emissions based on the methodologies used by these industries. Key Points Industry-specific C2F6/CF4 ratios are derived from atmospheric measurements These ratios are used to partition global total emissions to each industry Semiconductor and China's aluminum industry emissions most likely underestimated

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publishing date
type
Contribution to journal
publication status
published
keywords
aluminum production, emissions, greenhouse gases, perfluorocarbons, semiconductor manufacture
in
Geophysical Research Letters
volume
41
issue
13
pages
8 pages
publisher
American Geophysical Union (AGU)
external identifiers
  • scopus:84903869883
ISSN
0094-8276
DOI
10.1002/2014GL059783
language
English
LU publication?
no
id
a6ec6439-b35a-4aa7-b089-fce0a4c38586
date added to LUP
2024-10-24 18:29:31
date last changed
2024-10-29 14:15:24
@article{a6ec6439-b35a-4aa7-b089-fce0a4c38586,
  abstract     = {{<p>The potent anthropogenic perfluorocarbon greenhouse gases tetrafluoromethane (CF<sub>4</sub>) and hexafluoroethane (C<sub>2</sub>F<sub>6</sub>) are emitted to the atmosphere mainly by the aluminum and semiconductor industries. Global emissions of these perfluorocarbons (PFCs) calculated from atmospheric measurements are significantly greater than expected from reported national and industry-based emission inventories. In this study, in situ measurements of the two PFCs in the Advanced Global Atmospheric Gases Experiment network are used to show that their emission ratio varies according to the relative regional presence of these two industries, providing an industry-specific emission "signature" to apportion the observed emissions. Our results suggest that underestimated emissions from the global semiconductor industry during 1990-2010, as well as from China's aluminum industry after 2002, account for the observed differences between emissions based on atmospheric measurements and on inventories. These differences are significant despite the large uncertainties in emissions based on the methodologies used by these industries. Key Points Industry-specific C<sub>2</sub>F<sub>6</sub>/CF<sub>4</sub> ratios are derived from atmospheric measurements These ratios are used to partition global total emissions to each industry Semiconductor and China's aluminum industry emissions most likely underestimated</p>}},
  author       = {{Kim, Jooil and Fraser, Paul J. and Li, Shanlan and Mühle, Jens and Ganesan, Anita L. and Krummel, Paul B. and Steele, L. Paul and Park, Sunyoung and Kim, Seung Kyu and Park, Mi Kyung and Arnold, Tim and Harth, Christina M. and Salameh, Peter K. and Prinn, Ronald G. and Weiss, Ray F. and Kim, Kyung Ryul}},
  issn         = {{0094-8276}},
  keywords     = {{aluminum production; emissions; greenhouse gases; perfluorocarbons; semiconductor manufacture}},
  language     = {{eng}},
  month        = {{07}},
  number       = {{13}},
  pages        = {{4787--4794}},
  publisher    = {{American Geophysical Union (AGU)}},
  series       = {{Geophysical Research Letters}},
  title        = {{Quantifying aluminum and semiconductor industry perfluorocarbon emissions from atmospheric measurements}},
  url          = {{http://dx.doi.org/10.1002/2014GL059783}},
  doi          = {{10.1002/2014GL059783}},
  volume       = {{41}},
  year         = {{2014}},
}