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FältnamnIndikatorerMetadata
00004627naa a2200541 4500
001oai:gup.ub.gu.se/232925
003SwePub
008240528s2016 | |||||||||||000 ||eng|
0247 a https://gup.ub.gu.se/publication/2329252 URI
0247 a https://doi.org/10.5194/acp-16-2901-20162 DOI
040 a (SwePub)gu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Ghirardo, A.4 aut
2451 0a Urban stress-induced biogenic VOC emissions and SOA-forming potentials in Beijing
264 c 2016-03-07
264 1b Copernicus GmbH,c 2016
520 a 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 %. Based on the BVOC emission assessment, we estimated the biological impact on SOA mass formation potential in Beijing. Constitutive and stress-induced BVOCs might produce similar amounts of secondary aerosol in Beijing. However, the main contributors of SOA-mass formations originated from anthropogenic sources (> 90 %). This study demonstrates the general importance to include sBVOCs when studying BVOC emissions. Although the main problems regarding air quality in Beijing still originate from anthropogenic activities, the present survey suggests that in urban plantation programs, the selection of low-emitting plant species has some potential beneficial effects on urban air quality.
650 7a NATURVETENSKAPx Biologix Botanik0 (SwePub)106072 hsv//swe
650 7a NATURAL SCIENCESx Biological Sciencesx Botany0 (SwePub)106072 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Meteorologi och atmosfärforskning0 (SwePub)105082 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Meteorology and Atmospheric Sciences0 (SwePub)105082 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Miljövetenskap0 (SwePub)105022 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Environmental Sciences0 (SwePub)105022 hsv//eng
650 7a NATURVETENSKAPx Kemi0 (SwePub)1042 hsv//swe
650 7a NATURAL SCIENCESx Chemical Sciences0 (SwePub)1042 hsv//eng
650 7a NATURVETENSKAPx Kemix Fysikalisk kemi0 (SwePub)104022 hsv//swe
650 7a NATURAL SCIENCESx Chemical Sciencesx Physical Chemistry0 (SwePub)104022 hsv//eng
650 7a NATURVETENSKAPx Kemix Organisk kemi0 (SwePub)104052 hsv//swe
650 7a NATURAL SCIENCESx Chemical Sciencesx Organic Chemistry0 (SwePub)104052 hsv//eng
7001 a Xie, J.4 aut
7001 a Zheng, X.4 aut
7001 a Wang, Y.4 aut
7001 a Grote, R.4 aut
7001 a Block, K.4 aut
7001 a Wildt, J.4 aut
7001 a Mentel, Th. F.,d 19574 aut
7001 a Kiendler-Scharr, A.4 aut
7001 a Hallquist, Mattias,d 1969u Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology4 aut0 (Swepub:gu)xhamat
7001 a Butterbach-Bahl, K.4 aut
7001 a Schnitzler, J. P.4 aut
7102 a Göteborgs universitetb Institutionen för kemi och molekylärbiologi4 org
7730 t Atmos. Chem. Phys.d : Copernicus GmbHg 16:5, s. 2901-2920q 16:5<2901-2920x 1680-7324
8564 u https://www.atmos-chem-phys.net/16/2901/2016/acp-16-2901-2016.pdf
8564 8u https://gup.ub.gu.se/publication/232925
8564 8u https://doi.org/10.5194/acp-16-2901-2016

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