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Title: Resolving nanoparticle growth mechanisms from size- and time-dependent growth rate analysis

Abstract

Atmospheric new particle formation occurs frequently in the global atmosphere and may play a crucial role in climate by affecting cloud properties. The relevance of newly formed nanoparticles depends largely on the dynamics governing their initial formation and growth to sizes where they become important for cloud microphysics. One key to the proper understanding of nanoparticle effects on climate is therefore hidden in the growth mechanisms.In this study we have developed and successfully tested two independent methods based on the aerosol general dynamics equation, allowing detailed retrieval of time- and size-dependent nanoparticle growth rates. Here both methods were used to analyze particle formation from two different biogenic precursor vapors in controlled chamber experiments. Our results suggest that growth rates below 10 nm show much more variation than is currently thought and pin down the decisive size range of growth at around 5 nm where in-depth studie sof physical and chemical particle properties are needed.

Authors:
 [1];  [2];  [3]; ORCiD logo [4]; ORCiD logo [5];  [5];  [6]; ORCiD logo [7];  [8];  [2]
  1. Univ. of Salzburg, Salzburg (Austria)
  2. Univ. of Vienna, Vienna (Austria)
  3. National Center for Atmospheric Research, Boulder, CO (United States)
  4. Univ. of Innsbruck, Innsbruck (Austria)
  5. Finnish Meteorological Institute, Kuopio (Finland)
  6. Finnish Meteorological Institute, Kuopio (Finland); Univ. of Eastern Finland, Kuopio (Finland)
  7. Univ. of California, Irvine, CA (United States)
  8. Univ. of Minnesota, Twin Cities, Minneapolis, MN (United States)
Publication Date:
Research Org.:
Colorado State Univ., Fort Collins, CO (United States); Univ. of California, Irvine, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1502076
Grant/Contract Number:  
SC0011780; SC0014469
Resource Type:
Accepted Manuscript
Journal Name:
Atmospheric Chemistry and Physics (Online)
Additional Journal Information:
Journal Name: Atmospheric Chemistry and Physics (Online); Journal Volume: 18; Journal Issue: 2; Journal ID: ISSN 1680-7324
Publisher:
European Geosciences Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Pichelstorfer, Lukas, Stolzenburg, Dominik, Ortega, John, Karl, Thomas, Kokkola, Harri, Laakso, Anton, Lehtinen, Kari E. J., Smith, James N., McMurry, Peter H., and Winkler, Paul M. Resolving nanoparticle growth mechanisms from size- and time-dependent growth rate analysis. United States: N. p., 2018. Web. doi:10.5194/acp-18-1307-2018.
Pichelstorfer, Lukas, Stolzenburg, Dominik, Ortega, John, Karl, Thomas, Kokkola, Harri, Laakso, Anton, Lehtinen, Kari E. J., Smith, James N., McMurry, Peter H., & Winkler, Paul M. Resolving nanoparticle growth mechanisms from size- and time-dependent growth rate analysis. United States. doi:10.5194/acp-18-1307-2018.
Pichelstorfer, Lukas, Stolzenburg, Dominik, Ortega, John, Karl, Thomas, Kokkola, Harri, Laakso, Anton, Lehtinen, Kari E. J., Smith, James N., McMurry, Peter H., and Winkler, Paul M. Wed . "Resolving nanoparticle growth mechanisms from size- and time-dependent growth rate analysis". United States. doi:10.5194/acp-18-1307-2018. https://www.osti.gov/servlets/purl/1502076.
@article{osti_1502076,
title = {Resolving nanoparticle growth mechanisms from size- and time-dependent growth rate analysis},
author = {Pichelstorfer, Lukas and Stolzenburg, Dominik and Ortega, John and Karl, Thomas and Kokkola, Harri and Laakso, Anton and Lehtinen, Kari E. J. and Smith, James N. and McMurry, Peter H. and Winkler, Paul M.},
abstractNote = {Atmospheric new particle formation occurs frequently in the global atmosphere and may play a crucial role in climate by affecting cloud properties. The relevance of newly formed nanoparticles depends largely on the dynamics governing their initial formation and growth to sizes where they become important for cloud microphysics. One key to the proper understanding of nanoparticle effects on climate is therefore hidden in the growth mechanisms.In this study we have developed and successfully tested two independent methods based on the aerosol general dynamics equation, allowing detailed retrieval of time- and size-dependent nanoparticle growth rates. Here both methods were used to analyze particle formation from two different biogenic precursor vapors in controlled chamber experiments. Our results suggest that growth rates below 10 nm show much more variation than is currently thought and pin down the decisive size range of growth at around 5 nm where in-depth studie sof physical and chemical particle properties are needed.},
doi = {10.5194/acp-18-1307-2018},
journal = {Atmospheric Chemistry and Physics (Online)},
number = 2,
volume = 18,
place = {United States},
year = {2018},
month = {1}
}

Journal Article:
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