Methyl-Perfluoroheptene-Ethers (CH3OC7F13): Measured OH Radical Reaction Rate Coefficients for Several Isomers and Enantiomers and Their Atmospheric Lifetimes and Global Warming Potentials

2014 ◽  
Vol 48 (9) ◽  
pp. 4954-4962 ◽  
Author(s):  
Aaron M. Jubb ◽  
Tomasz Gierczak ◽  
Munkhbayar Baasandorj ◽  
Robert L. Waterland ◽  
James B. Burkholder
Keyword(s):  
Global Warming ◽  
Reaction Rate ◽  
Radical Reaction ◽  
Rate Coefficients ◽  
Oh Radical ◽  
Global Warming Potentials

CF3CFCH2and (Z)-CF3CFCHF: temperature dependent OH rate coefficients and global warming potentials

2008 ◽  
Vol 10 (6) ◽  
pp. 808-820 ◽  
Author(s):  
Vassileios C. Papadimitriou ◽  
Ranajit K. Talukdar ◽  
R. W. Portmann ◽  
A. R. Ravishankara ◽  
James B. Burkholder
Keyword(s):  
Global Warming ◽  
Rate Coefficients ◽  
Temperature Dependent ◽  
Global Warming Potentials

scholarly journals Global warming potential estimates for the C<sub>1</sub>–C<sub>3</sub> hydrochlorofluorocarbons (HCFCs) included in the Kigali Amendment to the Montreal Protocol

2018 ◽  
Vol 18 (9) ◽  
pp. 6317-6330 ◽  
Author(s):  
Dimitrios K. Papanastasiou ◽  
Allison Beltrone ◽  
Paul Marshall ◽  
James B. Burkholder
Keyword(s):  
Global Warming ◽  
Montreal Protocol ◽  
Oh Radical ◽  
Radical Reactivity ◽  
Structure Activity ◽  
Wide Range ◽  
Infrared Absorption Spectra ◽  
Global Warming Potentials ◽  
Ozone Depleting Substances ◽  
The Individual

Abstract. Hydrochlorofluorocarbons (HCFCs) are ozone depleting substances and potent greenhouse gases that are controlled under the Montreal Protocol. However, the majority of the 274 HCFCs included in Annex C of the protocol do not have reported global warming potentials (GWPs) which are used to guide the phaseout of HCFCs and the future phase down of hydrofluorocarbons (HFCs). In this study, GWPs for all C1–C3 HCFCs included in Annex C are reported based on estimated atmospheric lifetimes and theoretical methods used to calculate infrared absorption spectra. Atmospheric lifetimes were estimated from a structure activity relationship (SAR) for OH radical reactivity and estimated O(1D) reactivity and UV photolysis loss processes. The C1–C3 HCFCs display a wide range of lifetimes (0.3 to 62 years) and GWPs (5 to 5330, 100-year time horizon) dependent on their molecular structure and the H-atom content of the individual HCFC. The results from this study provide estimated policy-relevant GWP metrics for the HCFCs included in the Montreal Protocol in the absence of experimentally derived metrics.

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