Kinetics of the BrO + ClO reaction and implications for stratospheric ozone
The gas-phase reaction between BrO and CIO has been proposed as a potentially fast and synergistic mechanism of stratospheric ozone destruction. Further, it has been advanced1 as a contributing factor to Antarctic springtime ozone column losses of ∼40% from 1960 to 19852,3 Both dynamical4 and chemic...
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ftcdlib:oai:escholarship.org/ark:/13030/qt6h01h1ps 2023-05-15T14:02:59+02:00 Kinetics of the BrO + ClO reaction and implications for stratospheric ozone Hills, AJ Cicerone, RJ Calvert, JG Birks, JW 405 - 408 1988-01-01 application/pdf https://escholarship.org/uc/item/6h01h1ps unknown eScholarship, University of California qt6h01h1ps https://escholarship.org/uc/item/6h01h1ps CC-BY CC-BY Nature, vol 328, iss 6129 General Science & Technology article 1988 ftcdlib 2021-06-20T14:22:56Z The gas-phase reaction between BrO and CIO has been proposed as a potentially fast and synergistic mechanism of stratospheric ozone destruction. Further, it has been advanced1 as a contributing factor to Antarctic springtime ozone column losses of ∼40% from 1960 to 19852,3 Both dynamical4 and chemical theories1,5-8 have been advanced to explain the formation of the Antarctic 'ozone hole'. A major uncertainty in these theories has been the rate constant and product distribution of the BrO + ClO reaction as a function of temperature. Here we report the first direct measurements of these parameters. We show that this reaction could, indeed, account for a large fraction of the springtime ozone depletion over Antarctica and provide a source of chlorine dioxide of sufficient magnitude to explain the recent measurements of this species in the Antarctic stratosphere, provided that the stratosphere contains a sufficient quantity of bromine (∼20 p.p.t.v.). © 1987 Nature Publishing Group. Article in Journal/Newspaper Antarc* Antarctic Antarctica University of California: eScholarship Antarctic The Antarctic |
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University of California: eScholarship |
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unknown |
topic |
General Science & Technology |
spellingShingle |
General Science & Technology Hills, AJ Cicerone, RJ Calvert, JG Birks, JW Kinetics of the BrO + ClO reaction and implications for stratospheric ozone |
topic_facet |
General Science & Technology |
description |
The gas-phase reaction between BrO and CIO has been proposed as a potentially fast and synergistic mechanism of stratospheric ozone destruction. Further, it has been advanced1 as a contributing factor to Antarctic springtime ozone column losses of ∼40% from 1960 to 19852,3 Both dynamical4 and chemical theories1,5-8 have been advanced to explain the formation of the Antarctic 'ozone hole'. A major uncertainty in these theories has been the rate constant and product distribution of the BrO + ClO reaction as a function of temperature. Here we report the first direct measurements of these parameters. We show that this reaction could, indeed, account for a large fraction of the springtime ozone depletion over Antarctica and provide a source of chlorine dioxide of sufficient magnitude to explain the recent measurements of this species in the Antarctic stratosphere, provided that the stratosphere contains a sufficient quantity of bromine (∼20 p.p.t.v.). © 1987 Nature Publishing Group. |
format |
Article in Journal/Newspaper |
author |
Hills, AJ Cicerone, RJ Calvert, JG Birks, JW |
author_facet |
Hills, AJ Cicerone, RJ Calvert, JG Birks, JW |
author_sort |
Hills, AJ |
title |
Kinetics of the BrO + ClO reaction and implications for stratospheric ozone |
title_short |
Kinetics of the BrO + ClO reaction and implications for stratospheric ozone |
title_full |
Kinetics of the BrO + ClO reaction and implications for stratospheric ozone |
title_fullStr |
Kinetics of the BrO + ClO reaction and implications for stratospheric ozone |
title_full_unstemmed |
Kinetics of the BrO + ClO reaction and implications for stratospheric ozone |
title_sort |
kinetics of the bro + clo reaction and implications for stratospheric ozone |
publisher |
eScholarship, University of California |
publishDate |
1988 |
url |
https://escholarship.org/uc/item/6h01h1ps |
op_coverage |
405 - 408 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Nature, vol 328, iss 6129 |
op_relation |
qt6h01h1ps https://escholarship.org/uc/item/6h01h1ps |
op_rights |
CC-BY |
op_rightsnorm |
CC-BY |
_version_ |
1766273428867776512 |