Journal of Atmospheric Chemistry

, Volume 25, Issue 2, pp 167–199

Two-dimensional modelling of some CFC replacement compounds

  • Oliver Wild
  • Oliver V. Rattigan
  • Roderic L. Jones
  • John A. Pyle
  • R. Anthony Cox
Article

DOI: 10.1007/BF00053790

Cite this article as:
Wild, O., Rattigan, O.V., Jones, R.L. et al. J Atmos Chem (1996) 25: 167. doi:10.1007/BF00053790

Abstract

The Cambridge 2-D Eulerian model has been used to study the potential atmospheric distributions and lifetimes of a number of CFC replacement compounds and their degradation products. The study has focused on HFC 134a and HCFCs 123, 141b and 142b and the major products formed by their atmospheric degradation. The loss of these compounds and their products by hydroxyl radical attack, photolysis and in-cloud hydrolysis have been investigated. The study has shown that HCFCs 141b and 142b have sufficiently long lifetimes to enter the stratosphere in significant quantities, where degradation leads to an increase in the total stratospheric chlorine concentration. The study has also highlighted areas where further experimental work would be valuable, in particular characterisation of the product channels for the degradation reactions and determination of the removal rates of the products in the aqueous phase.

Key words

CFC replacement compounds distributions tropospheric lifetimes trifluoroacetic acid 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • Oliver Wild
    • 1
  • Oliver V. Rattigan
    • 1
  • Roderic L. Jones
    • 1
  • John A. Pyle
    • 1
  • R. Anthony Cox
    • 1
  1. 1.Centre for Atmospheric Science, Department of ChemistryUniversity of CambridgeCambridgeU.K.
  2. 2.Earth System ScienceUniversity of CaliforniaIrvine
  3. 3.Department of ChemistryBoston CollegeBoston

Personalised recommendations