New particle formation during <font face='Symbol' >a</font>- and <font face='Symbol' >b</font>-pinene oxidation by O<sub>3</sub>, OH and NO<sub>3</sub>, and the influence of water vapour: particle size distribution studies

New particle formation during the oxidation of <font face='Symbol' >a</font>- and <font face='Symbol' >b</font>-pinene (C<sub>10</sub>H<sub>16</sub>) by ozone, OH and NO<sub>3</sub> was studied by measuring the...

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Main Authors: B. Bonn, G. K. Moorgat
Format: Article
Language:English
Published: Copernicus Publications 2002-01-01
Series:Atmospheric Chemistry and Physics
Online Access:http://www.atmos-chem-phys.net/2/183/2002/acp-2-183-2002.pdf
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author B. Bonn
G. K. Moorgat
author_facet B. Bonn
G. K. Moorgat
author_sort B. Bonn
collection DOAJ
description New particle formation during the oxidation of <font face='Symbol' >a</font>- and <font face='Symbol' >b</font>-pinene (C<sub>10</sub>H<sub>16</sub>) by ozone, OH and NO<sub>3</sub> was studied by measuring the particle size distributions with a scanning mobility particle sizer (TSI 3936). The results indicate a drastically higher nucleation potential of the ozonolysis than in the reaction with either OH or NO<sub>3</sub>. On the contrary, the contribution of the individual oxidation reactions to form new aerosol volume was found to depend on the location of the carbon double bond to be oxidised: for the <i>endocyclic</i> <font face='Symbol' >a</font>-pinene reactions the ozonolysis contributed mostly to the aerosol volume yield, whereas for the <i>exocyclic</i>&nbsp; <font face='Symbol' >b</font>-pinene reactions the oxidation by O<sub>3</sub>, OH and NO<sub>3</sub> yielded a similar aerosol volume.<br> <br> In a second part of this study the influence of water vapour on the nucleation in all three possible oxidation routes was examined. The observations revealed only an effect of water vapour during the ozonolysis reactions.
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spelling doaj.art-ee5d656d22f94cf68b8805c14940b7e02022-12-21T23:29:42ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242002-01-0123183196New particle formation during <font face='Symbol' >a</font>- and <font face='Symbol' >b</font>-pinene oxidation by O<sub>3</sub>, OH and NO<sub>3</sub>, and the influence of water vapour: particle size distribution studiesB. BonnG. K. MoorgatNew particle formation during the oxidation of <font face='Symbol' >a</font>- and <font face='Symbol' >b</font>-pinene (C<sub>10</sub>H<sub>16</sub>) by ozone, OH and NO<sub>3</sub> was studied by measuring the particle size distributions with a scanning mobility particle sizer (TSI 3936). The results indicate a drastically higher nucleation potential of the ozonolysis than in the reaction with either OH or NO<sub>3</sub>. On the contrary, the contribution of the individual oxidation reactions to form new aerosol volume was found to depend on the location of the carbon double bond to be oxidised: for the <i>endocyclic</i> <font face='Symbol' >a</font>-pinene reactions the ozonolysis contributed mostly to the aerosol volume yield, whereas for the <i>exocyclic</i>&nbsp; <font face='Symbol' >b</font>-pinene reactions the oxidation by O<sub>3</sub>, OH and NO<sub>3</sub> yielded a similar aerosol volume.<br> <br> In a second part of this study the influence of water vapour on the nucleation in all three possible oxidation routes was examined. The observations revealed only an effect of water vapour during the ozonolysis reactions.http://www.atmos-chem-phys.net/2/183/2002/acp-2-183-2002.pdf
spellingShingle B. Bonn
G. K. Moorgat
New particle formation during <font face='Symbol' >a</font>- and <font face='Symbol' >b</font>-pinene oxidation by O<sub>3</sub>, OH and NO<sub>3</sub>, and the influence of water vapour: particle size distribution studies
Atmospheric Chemistry and Physics
title New particle formation during <font face='Symbol' >a</font>- and <font face='Symbol' >b</font>-pinene oxidation by O<sub>3</sub>, OH and NO<sub>3</sub>, and the influence of water vapour: particle size distribution studies
title_full New particle formation during <font face='Symbol' >a</font>- and <font face='Symbol' >b</font>-pinene oxidation by O<sub>3</sub>, OH and NO<sub>3</sub>, and the influence of water vapour: particle size distribution studies
title_fullStr New particle formation during <font face='Symbol' >a</font>- and <font face='Symbol' >b</font>-pinene oxidation by O<sub>3</sub>, OH and NO<sub>3</sub>, and the influence of water vapour: particle size distribution studies
title_full_unstemmed New particle formation during <font face='Symbol' >a</font>- and <font face='Symbol' >b</font>-pinene oxidation by O<sub>3</sub>, OH and NO<sub>3</sub>, and the influence of water vapour: particle size distribution studies
title_short New particle formation during <font face='Symbol' >a</font>- and <font face='Symbol' >b</font>-pinene oxidation by O<sub>3</sub>, OH and NO<sub>3</sub>, and the influence of water vapour: particle size distribution studies
title_sort new particle formation during font face symbol a font and font face symbol b font pinene oxidation by o sub 3 sub oh and no sub 3 sub and the influence of water vapour particle size distribution studies
url http://www.atmos-chem-phys.net/2/183/2002/acp-2-183-2002.pdf
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