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Urban stress-induced biogenic VOC emissions and SOA-forming potentials in Beijing

Ghirardo, A.; Xie, J.; Zheng, X.; Wang, Y.; Grote, R. ORCID iD icon 1,2; Block, K.; Wildt, J.; Mentel, T.; Kiendler-Scharr, A.; Hallquist, M.; Butterbach-Bahl, K. 1,2; Schnitzler, J.-P.
1 Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU), Karlsruher Institut für Technologie (KIT)
2 Institut für Meteorologie und Klimaforschung (IMK), Karlsruher Institut für Technologie (KIT)

Abstract:

Abstract. Trees can significantly impact the urban air chemistry by the uptake and emission of reactive biogenic volatile organic compounds (BVOCs), which are involved in ozone and particle formation. Here we present the emission potentials of "constitutive" (cBVOCs) and "stress-induced" BVOCs (sBVOCs) from the dominant broadleaf woody plant species in the megacity of Beijing. Based on the municipal tree census and cuvette BVOC measurements on leaf level, we built an inventory of BVOC emissions, and assessed the potential impact of BVOCs on secondary organic aerosol (SOA) formation in 2005 and 2010, i.e., before and after realizing the large tree-planting program for the 2008 Olympic Games. We found that sBVOCs, such as fatty acid derivatives, benzenoids, and sesquiterpenes, constituted a significant fraction ( ∼  40 %) of the total annual BVOC emissions, and we estimated that the overall annual BVOC budget may have doubled from  ∼  4.8  ×  109 g C year−1 in 2005 to  ∼  10.3  ×  109 g C year−1 in 2010 due to the increase in urban greening, while at the same time the emission of anthropogenic VOCs (AVOCs) decreased by 24 %. ... mehr


Volltext §
DOI: 10.5445/IR/1000053262
Originalveröffentlichung
DOI: 10.5194/acp-16-2901-2016
Scopus
Zitationen: 80
Web of Science
Zitationen: 66
Dimensions
Zitationen: 81
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2016
Sprache Englisch
Identifikator ISSN: 1680-7316
urn:nbn:de:swb:90-532622
KITopen-ID: 1000053262
HGF-Programm 12.02.01 (POF III, LK 01) Effects of land use and climate change
Erschienen in Atmospheric Chemistry and Physics
Verlag European Geosciences Union (EGU)
Band 16
Heft 5
Seiten 2901-2920
Nachgewiesen in Web of Science
Dimensions
Scopus
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