Sources and sinks of acetone, methanol, and acetaldehyde in North Atlantic marine air
Measurements of acetone, methanol, acetaldehyde and a range of non-methane hydrocarbons have been made in North Atlantic marine air at the Mace Head observatory. Under maritime conditions the combination of OVOCs (acetone, methanol and acetaldehyde) contributed up to 85% of the total mass of measure...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00049059 2023-05-15T17:30:37+02:00 Sources and sinks of acetone, methanol, and acetaldehyde in North Atlantic marine air Lewis, A. C. Hopkins, J. R. Carpenter, L. J. Stanton, J. Read, K. A. Pilling, M. J. 2005-08 electronic https://doi.org/10.5194/acp-5-1963-2005 https://noa.gwlb.de/receive/cop_mods_00049059 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00048679/acp-5-1963-2005.pdf https://acp.copernicus.org/articles/5/1963/2005/acp-5-1963-2005.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-5-1963-2005 https://noa.gwlb.de/receive/cop_mods_00049059 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00048679/acp-5-1963-2005.pdf https://acp.copernicus.org/articles/5/1963/2005/acp-5-1963-2005.pdf https://open-access.net/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2005 ftnonlinearchiv https://doi.org/10.5194/acp-5-1963-2005 2022-02-08T22:37:41Z Measurements of acetone, methanol, acetaldehyde and a range of non-methane hydrocarbons have been made in North Atlantic marine air at the Mace Head observatory. Under maritime conditions the combination of OVOCs (acetone, methanol and acetaldehyde) contributed up to 85% of the total mass of measured non methane organics in air and up to 80% of the OH radical organic sink, when compared with the sum of all other organic compounds including non-methane hydrocarbons, DMS and OH-reactive halocarbons (trichloromethane and tetrachloroethylene). The observations showed anomalies in the variance and abundance of acetaldehyde and acetone over that expected for species with a remote terrestrial emission source and OH controlled chemical lifetime. A detailed model incorporating an explicit chemical degradation mechanism indicated in situ formation during air mass transport was on timescales longer than the atmospheric lifetime of precursor hydrocarbons or primary emission. The period over which this process was significant was similar to that of airmass motion on intercontinental scales, and formation via this route may reproduce that of a widespread diffuse source. The model indicates that continued short chain OVOC formation occurs many days from the point of emission, via longer lived intermediates of oxidation such as organic peroxides and long chain alcohols. Article in Journal/Newspaper North Atlantic Niedersächsisches Online-Archiv NOA Mace ENVELOPE(155.883,155.883,-81.417,-81.417) Atmospheric Chemistry and Physics 5 7 1963 1974 |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
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English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Lewis, A. C. Hopkins, J. R. Carpenter, L. J. Stanton, J. Read, K. A. Pilling, M. J. Sources and sinks of acetone, methanol, and acetaldehyde in North Atlantic marine air |
topic_facet |
article Verlagsveröffentlichung |
description |
Measurements of acetone, methanol, acetaldehyde and a range of non-methane hydrocarbons have been made in North Atlantic marine air at the Mace Head observatory. Under maritime conditions the combination of OVOCs (acetone, methanol and acetaldehyde) contributed up to 85% of the total mass of measured non methane organics in air and up to 80% of the OH radical organic sink, when compared with the sum of all other organic compounds including non-methane hydrocarbons, DMS and OH-reactive halocarbons (trichloromethane and tetrachloroethylene). The observations showed anomalies in the variance and abundance of acetaldehyde and acetone over that expected for species with a remote terrestrial emission source and OH controlled chemical lifetime. A detailed model incorporating an explicit chemical degradation mechanism indicated in situ formation during air mass transport was on timescales longer than the atmospheric lifetime of precursor hydrocarbons or primary emission. The period over which this process was significant was similar to that of airmass motion on intercontinental scales, and formation via this route may reproduce that of a widespread diffuse source. The model indicates that continued short chain OVOC formation occurs many days from the point of emission, via longer lived intermediates of oxidation such as organic peroxides and long chain alcohols. |
format |
Article in Journal/Newspaper |
author |
Lewis, A. C. Hopkins, J. R. Carpenter, L. J. Stanton, J. Read, K. A. Pilling, M. J. |
author_facet |
Lewis, A. C. Hopkins, J. R. Carpenter, L. J. Stanton, J. Read, K. A. Pilling, M. J. |
author_sort |
Lewis, A. C. |
title |
Sources and sinks of acetone, methanol, and acetaldehyde in North Atlantic marine air |
title_short |
Sources and sinks of acetone, methanol, and acetaldehyde in North Atlantic marine air |
title_full |
Sources and sinks of acetone, methanol, and acetaldehyde in North Atlantic marine air |
title_fullStr |
Sources and sinks of acetone, methanol, and acetaldehyde in North Atlantic marine air |
title_full_unstemmed |
Sources and sinks of acetone, methanol, and acetaldehyde in North Atlantic marine air |
title_sort |
sources and sinks of acetone, methanol, and acetaldehyde in north atlantic marine air |
publisher |
Copernicus Publications |
publishDate |
2005 |
url |
https://doi.org/10.5194/acp-5-1963-2005 https://noa.gwlb.de/receive/cop_mods_00049059 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00048679/acp-5-1963-2005.pdf https://acp.copernicus.org/articles/5/1963/2005/acp-5-1963-2005.pdf |
long_lat |
ENVELOPE(155.883,155.883,-81.417,-81.417) |
geographic |
Mace |
geographic_facet |
Mace |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-5-1963-2005 https://noa.gwlb.de/receive/cop_mods_00049059 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00048679/acp-5-1963-2005.pdf https://acp.copernicus.org/articles/5/1963/2005/acp-5-1963-2005.pdf |
op_rights |
https://open-access.net/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-5-1963-2005 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
5 |
container_issue |
7 |
container_start_page |
1963 |
op_container_end_page |
1974 |
_version_ |
1766127482001424384 |