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Exploring sources o...
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Martinsson, JohanLund University,Lunds universitet,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Centre for Environmental and Climate Science (CEC),Faculty of Science,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
(författare)
Exploring sources of biogenic secondary organic aerosol compounds using chemical analysis and the FLEXPART model
- Artikel/kapitelEngelska2017
Förlag, utgivningsår, omfång ...
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2017-09-18
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Copernicus GmbH,2017
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16 s.
Nummerbeteckningar
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LIBRIS-ID:oai:lup.lub.lu.se:3ef0afe2-abf4-407b-abb8-1a22ab7eef0e
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https://lup.lub.lu.se/record/3ef0afe2-abf4-407b-abb8-1a22ab7eef0eURI
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https://doi.org/10.5194/acp-17-11025-2017DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
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Molecular tracers in secondary organic aerosols (SOAs) can provide information on origin of SOA, as well as regional scale processes involved in their formation. In this study 9 carboxylic acids, 11 organosulfates (OSs) and 2 nitrooxy organosulfates (NOSs) were determined in daily aerosol particle filter samples from Vavihill measurement station in southern Sweden during June and July 2012. Several of the observed compounds are photo-oxidation products from biogenic volatile organic compounds (BVOCs). Highest average mass concentrations were observed for carboxylic acids derived from fatty acids and monoterpenes (12. 3 ± 15. 6 and 13. 8 ± 11. 6 ng mg-3, respectively). The FLEXPART model was used to link nine specific surface types to single measured compounds. It was found that the surface category sea and ocean was dominating the air mass exposure (56 %) but contributed to low mass concentration of observed chemical compounds. A principal component (PC) analysis identified four components, where the one with highest explanatory power (49 %) displayed clear impact of coniferous forest on measured mass concentration of a majority of the compounds. The three remaining PCs were more difficult to interpret, although azelaic, suberic, and pimelic acid were closely related to each other but not to any clear surface category. Hence, future studies should aim to deduce the biogenic sources and surface category of these compounds. This study bridges micro-level chemical speciation to air mass surface exposure at the macro level.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Monteil, GuillaumeLund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science(Swepub:lu)nate-gem
(författare)
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Sporre, Moa K.University of Oslo(Swepub:lu)nucl-mse
(författare)
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Hansen, Anne Maria KaldalAarhus University
(författare)
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Kristensson, AdamLund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)nucl-akr
(författare)
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Stenström, Kristina ErikssonLund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)nucl-kst
(författare)
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Swietlicki, ErikLund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)nucl-esw
(författare)
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Glasius, MarianneAarhus University
(författare)
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Centrum för miljö- och klimatvetenskap (CEC)Naturvetenskapliga fakulteten
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Atmospheric Chemistry and Physics: Copernicus GmbH17:18, s. 11025-110401680-73161680-7324
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