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Size-dependent influence of nox on the growth rates of organic aerosol particles

Yan, C. ; Nie, W. ; Voge, A. L. ; Dada, L. ; Lehtipa, K. ; Stolzenburg, D. ; Wagner, R. ; Rissanen, M. P. ; Xiao, M. and Ahonen, L. , et al. (2020) In Science Advances 6(22).
Abstract

Atmospheric new-particle formation (NPF) affects climate by contributing to a large fraction of the cloud condensation nuclei (CCN). Highly oxygenated organic molecules (HOMs) drive the early particle growth and therefore substantially influence the survival of newly formed particles to CCN. Nitrogen oxide (NOx) is known to suppress the NPF driven by HOMs, but the underlying mechanism remains largely unclear. Here, we examine the response of particle growth to the changes of HOM formation caused by NOx. We show that NOx suppresses particle growth in general, but the suppression is rather nonuniform and size dependent, which can be quantitatively explained by the shifted HOM volatility after adding NOx. By illustrating how NOx affects... (More)

Atmospheric new-particle formation (NPF) affects climate by contributing to a large fraction of the cloud condensation nuclei (CCN). Highly oxygenated organic molecules (HOMs) drive the early particle growth and therefore substantially influence the survival of newly formed particles to CCN. Nitrogen oxide (NOx) is known to suppress the NPF driven by HOMs, but the underlying mechanism remains largely unclear. Here, we examine the response of particle growth to the changes of HOM formation caused by NOx. We show that NOx suppresses particle growth in general, but the suppression is rather nonuniform and size dependent, which can be quantitatively explained by the shifted HOM volatility after adding NOx. By illustrating how NOx affects the early growth of new particles, a critical step of CCN formation, our results help provide a refined assessment of the potential climatic effects caused by the diverse changes of NOx level in forest regions around the globe.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Science Advances
volume
6
issue
22
article number
eaay4945
publisher
American Association for the Advancement of Science (AAAS)
external identifiers
  • scopus:85086355828
  • pmid:32518819
ISSN
2375-2548
DOI
10.1126/sciadv.aay4945
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2020 American Association for the Advancement of Science. All rights reserved.
id
043a31e9-3cfd-45bd-86bd-80368467f566
date added to LUP
2022-05-03 14:16:41
date last changed
2024-06-14 14:56:42
@article{043a31e9-3cfd-45bd-86bd-80368467f566,
  abstract     = {{<p>Atmospheric new-particle formation (NPF) affects climate by contributing to a large fraction of the cloud condensation nuclei (CCN). Highly oxygenated organic molecules (HOMs) drive the early particle growth and therefore substantially influence the survival of newly formed particles to CCN. Nitrogen oxide (NOx) is known to suppress the NPF driven by HOMs, but the underlying mechanism remains largely unclear. Here, we examine the response of particle growth to the changes of HOM formation caused by NOx. We show that NOx suppresses particle growth in general, but the suppression is rather nonuniform and size dependent, which can be quantitatively explained by the shifted HOM volatility after adding NOx. By illustrating how NOx affects the early growth of new particles, a critical step of CCN formation, our results help provide a refined assessment of the potential climatic effects caused by the diverse changes of NOx level in forest regions around the globe.</p>}},
  author       = {{Yan, C. and Nie, W. and Voge, A. L. and Dada, L. and Lehtipa, K. and Stolzenburg, D. and Wagner, R. and Rissanen, M. P. and Xiao, M. and Ahonen, L. and Fischer, L. and Rose, C. and Bianchi, F. and Gordon, H. and Simon, M. and Heinritzi, M. and Garmash, O. and Roldin, P. and Dias, A. and Ye, P. and Hofbauer, V. and Amorim, A. and Bauer, P. S. and Bergen, A. and Bernhammer, A. K. and Breitenlechner, M. and Brilke, S. and Buchholz, A. and Mazon, S. Buenrostro and Canagaratna, M. R. and Chen, X. and Ding, A. and Dommen, J. and Draper, D. C. and Duplissy, J. and Frege, C. and Heyn, C. and Guida, R. and Hakala, J. and Heikkinen, L. and Hoyle, C. R. and Jokinen, T. and Kangasluoma, J. and Kirkby, J. and Kontkanen, J. and Kürten, A. and Lawler, M. J. and Mai, H. and Mathot, S. and Iii, R. L.Mauldin and Molteni, U. and Nichman, L. and Nieminen, T. and Nowak, J. and Ojdanic, A. and Onnela, A. and Pajunoja, A. and Petäjä, T. and Piel, F. and Quéléver, L. L.J. and Sarnela, N. and Schallhart, S. and Sengupta, K. and Sipilä, M. and Tomé, A. and Tröst, J. and Vaïsänen, O. and Wagner, A. C. and Ylisirniö, A. and Zha, Q. and Baltensperger, U. and Carslaw, K. S. and Curtius, J. and Flagan, R. C. and Hanse, A. and Riipinen, I. and Smith, J. N. and Virtanen, A. and Winkler, P. M. and Donahue, N. M. and Kerminen, V. M. and Kulmala, M. and Ehn, M. and Worsnop, D. R.}},
  issn         = {{2375-2548}},
  language     = {{eng}},
  number       = {{22}},
  publisher    = {{American Association for the Advancement of Science (AAAS)}},
  series       = {{Science Advances}},
  title        = {{Size-dependent influence of nox on the growth rates of organic aerosol particles}},
  url          = {{http://dx.doi.org/10.1126/sciadv.aay4945}},
  doi          = {{10.1126/sciadv.aay4945}},
  volume       = {{6}},
  year         = {{2020}},
}