Impact of anthropogenic and biogenic sources on the seasonal variation in the molecular composition of urban organic aerosols: a field and laboratory study using ultra-high-resolution mass spectrometry

Kaspar R. Daellenbach, Ivan Kourtchev, Alexander L. Vogel, Emily A. Bruns, Jianhui Jiang, Tuukka Petäjä, Jean-Luc Jaffrezo, Sebnem Aksoyoglu, Markus Kalberer, Urs Baltensperger, Imad El Haddad, Andre S. H. Prevot

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Sammanfattning

This study presents the molecular composition of organic aerosol (OA) using ultra-high-resolution mass spectrometry (Orbitrap) at an urban site in Central Europe (Zurich, Switzerland). Specific source spectra were also analysed, including samples representative of woodburning emissions from Alpine valleys during wood-burning pollution episodes and smog chamber investigations of woodsmoke, as well as samples from Hyytiala, which were strongly influenced by biogenic secondary organic aerosol. While samples collected during winter in Alpine valleys have a molecular composition remarkably similar to fresh laboratory wood-burning emissions, winter samples from Zurich are influenced by more aged wood-burning emissions. In addition, other organic aerosol emissions or formation pathways seem to be important at the latter location in winter. Samples from Zurich during summer are similar to those collected in Hyytiala and are predominantly impacted by oxygenated compounds with an H/C ratio of 1.5, indicating the importance of biogenic precursors for secondary organic aerosol (SOA) formation at this location (summertime Zurich - carbon number 7.6, O : C 0.7; Hyytiala - carbon number 10.5, O : C 0.57). We could explain the strong seasonality of the molecular composition at a typical European site by primary and aged wood-burning emissions and biogenic secondary organic aerosol formation during winter and summer, respectively. Results presented here likely explain the rather constant seasonal predominance of non-fossil organic carbon at European locations.
Originalspråkengelska
TidskriftAtmospheric Chemistry and Physics
Volym19
Utgåva9
Sidor (från-till)5973-5991
Antal sidor19
ISSN1680-7316
DOI
StatusPublicerad - 7 maj 2019
MoE-publikationstypA1 Tidskriftsartikel-refererad

Vetenskapsgrenar

  • 1172 Miljövetenskap
  • 116 Kemi

Citera det här

Daellenbach, Kaspar R. ; Kourtchev, Ivan ; Vogel, Alexander L. ; Bruns, Emily A. ; Jiang, Jianhui ; Petäjä, Tuukka ; Jaffrezo, Jean-Luc ; Aksoyoglu, Sebnem ; Kalberer, Markus ; Baltensperger, Urs ; El Haddad, Imad ; Prevot, Andre S. H. / Impact of anthropogenic and biogenic sources on the seasonal variation in the molecular composition of urban organic aerosols : a field and laboratory study using ultra-high-resolution mass spectrometry. I: Atmospheric Chemistry and Physics. 2019 ; Vol. 19, Nr. 9. s. 5973-5991.
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title = "Impact of anthropogenic and biogenic sources on the seasonal variation in the molecular composition of urban organic aerosols: a field and laboratory study using ultra-high-resolution mass spectrometry",
abstract = "This study presents the molecular composition of organic aerosol (OA) using ultra-high-resolution mass spectrometry (Orbitrap) at an urban site in Central Europe (Zurich, Switzerland). Specific source spectra were also analysed, including samples representative of woodburning emissions from Alpine valleys during wood-burning pollution episodes and smog chamber investigations of woodsmoke, as well as samples from Hyytiala, which were strongly influenced by biogenic secondary organic aerosol. While samples collected during winter in Alpine valleys have a molecular composition remarkably similar to fresh laboratory wood-burning emissions, winter samples from Zurich are influenced by more aged wood-burning emissions. In addition, other organic aerosol emissions or formation pathways seem to be important at the latter location in winter. Samples from Zurich during summer are similar to those collected in Hyytiala and are predominantly impacted by oxygenated compounds with an H/C ratio of 1.5, indicating the importance of biogenic precursors for secondary organic aerosol (SOA) formation at this location (summertime Zurich - carbon number 7.6, O : C 0.7; Hyytiala - carbon number 10.5, O : C 0.57). We could explain the strong seasonality of the molecular composition at a typical European site by primary and aged wood-burning emissions and biogenic secondary organic aerosol formation during winter and summer, respectively. Results presented here likely explain the rather constant seasonal predominance of non-fossil organic carbon at European locations.",
keywords = "AIR-POLLUTION SOURCES, SOURCE APPORTIONMENT, CARBONACEOUS AEROSOLS, ELECTROSPRAY-IONIZATION, OFFLINE-AMS, ELEMENTAL CARBON, NITRATED PHENOLS, CENTRAL-EUROPE, EMISSIONS, COMBUSTION, 1172 Environmental sciences, 116 Chemical sciences",
author = "Daellenbach, {Kaspar R.} and Ivan Kourtchev and Vogel, {Alexander L.} and Bruns, {Emily A.} and Jianhui Jiang and Tuukka Pet{\"a}j{\"a} and Jean-Luc Jaffrezo and Sebnem Aksoyoglu and Markus Kalberer and Urs Baltensperger and {El Haddad}, Imad and Prevot, {Andre S. H.}",
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doi = "10.5194/acp-19-5973-2019",
language = "English",
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journal = "Atmospheric Chemistry and Physics",
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Impact of anthropogenic and biogenic sources on the seasonal variation in the molecular composition of urban organic aerosols : a field and laboratory study using ultra-high-resolution mass spectrometry. / Daellenbach, Kaspar R.; Kourtchev, Ivan; Vogel, Alexander L.; Bruns, Emily A.; Jiang, Jianhui; Petäjä, Tuukka; Jaffrezo, Jean-Luc; Aksoyoglu, Sebnem; Kalberer, Markus; Baltensperger, Urs; El Haddad, Imad; Prevot, Andre S. H.

I: Atmospheric Chemistry and Physics, Vol. 19, Nr. 9, 07.05.2019, s. 5973-5991.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

TY - JOUR

T1 - Impact of anthropogenic and biogenic sources on the seasonal variation in the molecular composition of urban organic aerosols

T2 - a field and laboratory study using ultra-high-resolution mass spectrometry

AU - Daellenbach, Kaspar R.

AU - Kourtchev, Ivan

AU - Vogel, Alexander L.

AU - Bruns, Emily A.

AU - Jiang, Jianhui

AU - Petäjä, Tuukka

AU - Jaffrezo, Jean-Luc

AU - Aksoyoglu, Sebnem

AU - Kalberer, Markus

AU - Baltensperger, Urs

AU - El Haddad, Imad

AU - Prevot, Andre S. H.

PY - 2019/5/7

Y1 - 2019/5/7

N2 - This study presents the molecular composition of organic aerosol (OA) using ultra-high-resolution mass spectrometry (Orbitrap) at an urban site in Central Europe (Zurich, Switzerland). Specific source spectra were also analysed, including samples representative of woodburning emissions from Alpine valleys during wood-burning pollution episodes and smog chamber investigations of woodsmoke, as well as samples from Hyytiala, which were strongly influenced by biogenic secondary organic aerosol. While samples collected during winter in Alpine valleys have a molecular composition remarkably similar to fresh laboratory wood-burning emissions, winter samples from Zurich are influenced by more aged wood-burning emissions. In addition, other organic aerosol emissions or formation pathways seem to be important at the latter location in winter. Samples from Zurich during summer are similar to those collected in Hyytiala and are predominantly impacted by oxygenated compounds with an H/C ratio of 1.5, indicating the importance of biogenic precursors for secondary organic aerosol (SOA) formation at this location (summertime Zurich - carbon number 7.6, O : C 0.7; Hyytiala - carbon number 10.5, O : C 0.57). We could explain the strong seasonality of the molecular composition at a typical European site by primary and aged wood-burning emissions and biogenic secondary organic aerosol formation during winter and summer, respectively. Results presented here likely explain the rather constant seasonal predominance of non-fossil organic carbon at European locations.

AB - This study presents the molecular composition of organic aerosol (OA) using ultra-high-resolution mass spectrometry (Orbitrap) at an urban site in Central Europe (Zurich, Switzerland). Specific source spectra were also analysed, including samples representative of woodburning emissions from Alpine valleys during wood-burning pollution episodes and smog chamber investigations of woodsmoke, as well as samples from Hyytiala, which were strongly influenced by biogenic secondary organic aerosol. While samples collected during winter in Alpine valleys have a molecular composition remarkably similar to fresh laboratory wood-burning emissions, winter samples from Zurich are influenced by more aged wood-burning emissions. In addition, other organic aerosol emissions or formation pathways seem to be important at the latter location in winter. Samples from Zurich during summer are similar to those collected in Hyytiala and are predominantly impacted by oxygenated compounds with an H/C ratio of 1.5, indicating the importance of biogenic precursors for secondary organic aerosol (SOA) formation at this location (summertime Zurich - carbon number 7.6, O : C 0.7; Hyytiala - carbon number 10.5, O : C 0.57). We could explain the strong seasonality of the molecular composition at a typical European site by primary and aged wood-burning emissions and biogenic secondary organic aerosol formation during winter and summer, respectively. Results presented here likely explain the rather constant seasonal predominance of non-fossil organic carbon at European locations.

KW - AIR-POLLUTION SOURCES

KW - SOURCE APPORTIONMENT

KW - CARBONACEOUS AEROSOLS

KW - ELECTROSPRAY-IONIZATION

KW - OFFLINE-AMS

KW - ELEMENTAL CARBON

KW - NITRATED PHENOLS

KW - CENTRAL-EUROPE

KW - EMISSIONS

KW - COMBUSTION

KW - 1172 Environmental sciences

KW - 116 Chemical sciences

U2 - 10.5194/acp-19-5973-2019

DO - 10.5194/acp-19-5973-2019

M3 - Article

VL - 19

SP - 5973

EP - 5991

JO - Atmospheric Chemistry and Physics

JF - Atmospheric Chemistry and Physics

SN - 1680-7316

IS - 9

ER -