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DOI10.5194/acp-18-11779-2018
Modelling studies of HOMs and their contributions to new particle formation and growth: comparison of boreal forest in Finland and a polluted environment in China
Qi, Ximeng1,2,4; Ding, Aijun1,2; Roldin, Pontus3; Xu, Zhengning1,2; Zhou, Putian4; Sarnela, Nina4; Nie, Wei1,2; Huang, Xin1,2; Rusanen, Anton4; Ehn, Mikael4; Rissanen, Matti P.4; Petaja, Tuukka1,4; Kulmala, Markku4; Boy, Michael4
2018-08-20
发表期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
EISSN1680-7324
出版年2018
卷号18期号:16页码:11779-11791
文章类型Article
语种英语
国家Peoples R China; Sweden; Finland
英文摘要

Highly oxygenated multifunctional compounds (HOMs) play a key role in new particle formation (NPF), but their quantitative roles in different environments of the globe have not been well studied yet. Frequent NPF events were observed at two "flagship" stations under different environmental conditions, i.e. a remote boreal forest site (SMEAR II) in Finland and a suburban site (SORPES) in polluted eastern China. The averaged formation rate of 6 nm particles and the growth rate of 6-30 nm particles were 0.3 cm(-3) s(-1) and 4.5 nm h(-1) at SMEAR II compared to 2.3 cm(-3) s(-1) and 8.7 nm h(-1) at SORPES, respectively. To explore the differences of NPF at the two stations, the HOM concentrations and NPF events at two sites were simulated with the MALTE-BOX model, and their roles in NPF and particle growth in the two distinctly different environments are discussed. The model provides an acceptable agreement between the simulated and measured concentrations of sulfuric acid and HOMs at SMEAR II. The sulfuric acid and HOM organonitrate concentrations are significantly higher but other HOM monomers and dimers from monoterpene oxidation are lower at SORPES compared to SMEAR II. The model simulates the NPF events at SMEAR II with a good agreement but underestimates the growth of new particles at SORPES, indicating a dominant role of anthropogenic processes in the polluted environment. HOMs from monoter-pene oxidation dominate the growth of ultrafine particles at SMEAR II while sulfuric acid and HOMs from aromatics oxidation play a more important role in particle growth. This study highlights the distinct roles of sulfuric acid and HOMs in NPF and particle growth in different environmental conditions and suggests the need for molecular-scale measurements in improving the understanding of NPF mechanisms in polluted areas like eastern China.


领域地球科学
收录类别SCI-E
WOS记录号WOS:000442099800001
WOS关键词VOLATILE ORGANIC-COMPOUNDS ; YANGTZE-RIVER DELTA ; MASTER CHEMICAL MECHANISM ; AEROSOL-SIZE DISTRIBUTION ; EURASIAN EXPERIMENT PEEX ; MCM V3 PART ; SULFURIC-ACID ; LONG-TERM ; TROPOSPHERIC DEGRADATION ; FORMATION EVENTS
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/27253
专题地球科学
作者单位1.Nanjing Univ, Joint Int Res Lab Atmospher & Earth Syst Sci, Sch Atmospher Sci, Nanjing 210023, Jiangsu, Peoples R China;
2.Collaborat Innovat Ctr Climate Change, Nanjing 210023, Jiangsu, Peoples R China;
3.Lund Univ, Div Nucl Phys, POB 118, S-22100 Lund, Sweden;
4.Univ Helsinki, Inst Atmospher & Earth Syst Research Phys, Fac Sci, POB 64, FIN-00014 Helsinki, Finland
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GB/T 7714
Qi, Ximeng,Ding, Aijun,Roldin, Pontus,et al. Modelling studies of HOMs and their contributions to new particle formation and growth: comparison of boreal forest in Finland and a polluted environment in China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(16):11779-11791.
APA Qi, Ximeng.,Ding, Aijun.,Roldin, Pontus.,Xu, Zhengning.,Zhou, Putian.,...&Boy, Michael.(2018).Modelling studies of HOMs and their contributions to new particle formation and growth: comparison of boreal forest in Finland and a polluted environment in China.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(16),11779-11791.
MLA Qi, Ximeng,et al."Modelling studies of HOMs and their contributions to new particle formation and growth: comparison of boreal forest in Finland and a polluted environment in China".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.16(2018):11779-11791.
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