Gutenberg Open Science: First measurements of reactive α-dicarbonyl concentrations on PM<sub>2.5</sub> aerosol over the Boreal forest in Finland during HUMPPA-COPEC 2010 - source apportionment and links to aerosol aging

Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-7796

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DC Field	Value	Language
dc.contributor.author	Kampf, Christopher Johannes	-
dc.contributor.author	Corrigan, Ashley L.	-
dc.contributor.author	Johnson, A. M.	-
dc.contributor.author	Song, W.	-
dc.contributor.author	Keronen, P.	-
dc.contributor.author	Königstedt, Rainer	-
dc.contributor.author	Williams, Jonathan	-
dc.contributor.author	Russell, L. M.	-
dc.contributor.author	Petäjä, T.	-
dc.contributor.author	Fischer, H.	-
dc.contributor.author	Hoffmann, Thorsten	-
dc.date.accessioned	2022-10-04T08:14:00Z	-
dc.date.available	2022-10-04T08:14:00Z	-
dc.date.issued	2012	-
dc.identifier.uri	https://openscience.ub.uni-mainz.de/handle/20.500.12030/7811	-
dc.description.abstract	The first dataset for summertime boreal forest concentrations of two atmospherically relevant α-dicarbonyl compounds, glyoxal (Gly) and methylglyoxal (Mgly) on PM<sub>2.5</sub> aerosol was obtained during the HUMPPA-COPEC-2010 field measurement intensive in Hyytiälä, Finland. Anthropogenic influences over the course of the campaign were identified using trace gas signatures and aerosol particle chemical composition analysis. The data evaluation allowed the identification of different events such as urban pollution plumes, biomass burning and sawmill emissions as sources of high Gly and Mgly concentrations. Mean aerosol concentrations during periods of biogenic influence were 0.81 ng m<sup>−3</sup> for Gly and 0.31 ng m<sup>−3</sup> for Mgly. Mgly was generally less abundant in PM<sub>2.5</sub>, probably due to its shorter photolysis lifetime and less effective partitioning into the particle phase due to its smaller effective Henry's Law constant compared to Gly. This is in contrast with previous urban studies which show significantly more Mgly than Gly. Peak concentrations for Gly coincided with nearby sources, e.g. high VOC emissions from nearby sawmills, urban pollution plumes from the city of Tampere located 50 km southwest of the sampling site and biomass burning emissions from wildfires. Calculated ratios of Gly in PM<sub>2.5</sub> and total organic matter in PM1 aerosols indicate higher values in less aged aerosols. Irreversible processing of Gly in the particle phase, e.g. via oxidation by OH radicals, organo sulfate or imidazole formation are processes currently discussed in the literature which could likely explain these findings.	de_DE
dc.description.sponsorship	DFG, Open Access-Publizieren Universität Mainz / Universitätsmedizin	de
dc.language.iso	eng	de
dc.rights	CC BY	*
dc.rights.uri	https://creativecommons.org/licenses/by/3.0/	*
dc.subject.ddc	540 Chemie	de_DE
dc.subject.ddc	540 Chemistry and allied sciences	en_GB
dc.title	First measurements of reactive α-dicarbonyl concentrations on PM<sub>2.5</sub> aerosol over the Boreal forest in Finland during HUMPPA-COPEC 2010 - source apportionment and links to aerosol aging	de_DE
dc.type	Zeitschriftenaufsatz	de
dc.identifier.doi	http://doi.org/10.25358/openscience-7796	-
jgu.type.dinitype	article	en_GB
jgu.type.version	Published version	de
jgu.type.resource	Text	de
jgu.organisation.department	FB 09 Chemie, Pharmazie u. Geowissensch.	de
jgu.organisation.number	7950	-
jgu.organisation.name	Johannes Gutenberg-Universität Mainz	-
jgu.rights.accessrights	openAccess	-
jgu.journal.title	Atmospheric chemistry and physics	de
jgu.journal.volume	12	de
jgu.journal.issue	14	de
jgu.pages.start	6145	de
jgu.pages.end	6155	de
jgu.publisher.year	2012	-
jgu.publisher.name	European Geosciences Union	de
jgu.publisher.place	Katlenburg-Lindau	de
jgu.publisher.uri	http://dx.doi.org/10.5194/acp-12-6145-2012	de
jgu.publisher.issn	1680-7324	de
jgu.publisher.issn	1680-7316	de
jgu.organisation.place	Mainz	-
jgu.subject.ddccode	540	de
opus.date.modified	2019-08-16T09:48:45Z	-
opus.subject.dfgcode	09-313	-
opus.organisation.string	FB 09: Chemie, Pharmazie und Geowissenschaften: Institut für Anorganische Chemie und Analytische Chemie	de_DE
opus.identifier.opusid	22717	-
opus.institute.number	0903	-
opus.metadataonly	false	-
opus.type.contenttype	Keine	de_DE
opus.type.contenttype	None	en_EN
opus.affiliated	Kampf, Christopher Johannes	-
opus.affiliated	Hoffmann, Thorsten	-
jgu.publisher.doi	10.5194/acp-12-6145-2012	de
jgu.organisation.ror	https://ror.org/023b0x485	-
Appears in collections:	DFG-OA-Publizieren (2012 - 2017)

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