DOI: 10.1002/2014GL060160
论文题名: Molecular constraints on particle growth during new particle formation
作者: Bzdek B.R. ; Lawler M.J. ; Horan A.J. ; Pennington M.R. ; DePalma J.W. ; Zhao J. ; Smith J.N. ; Johnston M.V.
刊名: Geophysical Research Letters
ISSN: 0094-9850
EISSN: 1944-9581
出版年: 2014
卷: 41, 期: 16 起始页码: 6045
结束页码: 6054
语种: 英语
Scopus关键词: Carbonaceous matter
; Carbonaceous species
; Climatic impact
; Composition measurements
; Molecular identities
; Nanoparticle growths
; New particle formation
; Particle growth
; Nanoparticles
; climate change
; growth rate
; molecular analysis
; particle motion
; particulate matter
英文摘要: Atmospheric new particle formation (NPF) produces large numbers of nanoparticles which can ultimately impact climate. A firm understanding of the identity and contribution of the inorganic and carbonaceous species to nanoparticle growth is required to assess the climatic importance of NPF. Here, we combine elemental and molecular nanoparticle composition measurements to better define the composition and contribution of carbonaceous matter to nanoparticle growth in a rural/coastal environment. We show that carbonaceous matter can account for more than half of the mass growth of nanoparticles and its composition is consistent with that expected for extremely low volatility organic compounds. An important novel finding is that the carbonaceous matter must contain a substantial amount of nitrogen, whose molecular identity is not fully understood. The results advance our quantitative understanding of the composition and contribution of carbonaceous matter to nanoparticle growth, which is essential to more accurately predict the climatic impacts of NPF. © 2014. American Geophysical Union. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84906523964&doi=10.1002%2f2014GL060160&partnerID=40&md5=bdf0a61f28706e46235d674a5871977c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7114
Appears in Collections: 气候减缓与适应
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作者单位: Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, United States
Recommended Citation:
Bzdek B.R.,Lawler M.J.,Horan A.J.,et al. Molecular constraints on particle growth during new particle formation[J]. Geophysical Research Letters,2014-01-01,41(16).