Ambient observations of dimers from terpene oxidation in the gas phase : Implications for new particle formation and growth

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dc.contributor.author Mohr, Claudia
dc.contributor.author Lopez-Hilfiker, Felipe D.
dc.contributor.author Yli-Juuti, Taina
dc.contributor.author Heitto, Arto
dc.contributor.author Lutz, Anna
dc.contributor.author Hallquist, Mattias
dc.contributor.author D'Ambro, Emma L.
dc.contributor.author Rissanen, Matti P.
dc.contributor.author Hao, Liqing
dc.contributor.author Schobesberger, Siegfried
dc.contributor.author Kulmala, Markku
dc.contributor.author Mauldin III, Roy L.
dc.contributor.author Makkonen, Ulla
dc.contributor.author Sipilä, Mikko
dc.contributor.author Petäjä, Tuukka
dc.contributor.author Thornton, Joel A.
dc.date.accessioned 2018-07-09T14:05:01Z
dc.date.available 2021-12-17T22:01:37Z
dc.date.issued 2017-03-28
dc.identifier.citation Mohr , C , Lopez-Hilfiker , F D , Yli-Juuti , T , Heitto , A , Lutz , A , Hallquist , M , D'Ambro , E L , Rissanen , M P , Hao , L , Schobesberger , S , Kulmala , M , Mauldin III , R L , Makkonen , U , Sipilä , M , Petäjä , T & Thornton , J A 2017 , ' Ambient observations of dimers from terpene oxidation in the gas phase : Implications for new particle formation and growth ' , Geophysical Research Letters , vol. 44 , no. 6 , pp. 2958-2966 . https://doi.org/10.1002/2017GL072718
dc.identifier.other PURE: 84067119
dc.identifier.other PURE UUID: 96d43d3b-80d3-4c20-b2de-dc0d0b943c1b
dc.identifier.other WOS: 000399762700040
dc.identifier.other Scopus: 85017352964
dc.identifier.other ORCID: /0000-0002-8594-7003/work/41369374
dc.identifier.other ORCID: /0000-0003-0463-8098/work/32700690
dc.identifier.other ORCID: /0000-0002-1881-9044/work/102822896
dc.identifier.uri http://hdl.handle.net/10138/237042
dc.description.abstract We present ambient observations of dimeric monoterpene oxidation products (C16-20HyO6-9) in gas and particle phases in the boreal forest in Finland in spring 2013 and 2014, detected with a chemical ionization mass spectrometer with a filter inlet for gases and aerosols employing acetate and iodide as reagent ions. These are among the first online dual-phase observations of such dimers in the atmosphere. Estimated saturation concentrations of 10(-15) to 10(-6)mu gm(-3) (based on observed thermal desorptions and group-contribution methods) and measured gas-phase concentrations of 10(-3) to 10(-2)mu gm(-3) (similar to 10(6)-10(7)moleculescm(-3)) corroborate a gas-phase formation mechanism. Regular new particle formation (NPF) events allowed insights into the potential role dimers may play for atmospheric NPF and growth. The observationally constrained Model for Acid-Base chemistry in NAnoparticle Growth indicates a contribution of similar to 5% to early stage particle growth from the similar to 60 gaseous dimer compounds. Plain Language Summary Atmospheric aerosol particles influence climate and air quality. We present new insights into how emissions of volatile organic compounds from trees are transformed in the atmosphere to contribute to the formation and growth of aerosol particles. We detected for the first time over a forest, a group of organic molecules, known to grow particles, in the gas phase at levels far higher than expected. Previous measurements had only measured them in the particles. This finding provides guidance on how models of aerosol formation and growth should describe their appearance and fate in the atmosphere. en
dc.format.extent 9
dc.language.iso eng
dc.relation.ispartof Geophysical Research Letters
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject dimers
dc.subject CIMS
dc.subject new particle formation
dc.subject monoterpene oxidation
dc.subject boreal forest
dc.subject SECONDARY ORGANIC AEROSOL
dc.subject IONIZATION MASS-SPECTROMETRY
dc.subject ALPHA-PINENE OZONOLYSIS
dc.subject OXIDIZED RO2 RADICALS
dc.subject BOREAL-FOREST
dc.subject VAPOR-PRESSURES
dc.subject ATMOSPHERIC AEROSOLS
dc.subject OLIGOMER FORMATION
dc.subject SOUTHERN OXIDANT
dc.subject PEROXY-RADICALS
dc.subject 114 Physical sciences
dc.subject 1172 Environmental sciences
dc.title Ambient observations of dimers from terpene oxidation in the gas phase : Implications for new particle formation and growth en
dc.type Article
dc.contributor.organization Department of Physics
dc.contributor.organization Polar and arctic atmospheric research (PANDA)
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1002/2017GL072718
dc.relation.issn 0094-8276
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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