Skip to content
Journal article

Identification and Quantification of Particle Growth Channels During New Particle Formation

Johnston M, Bzdek B, DePalma J, Pennington M, Smith J, Petaja T, Kulmala M, Worsnop D ...see all

Nucleation and Atmospheric Aerosols, vol. 1527 (2013) pp. 397-400

  • 1

    Readers

    Mendeley users who have this article in their library.
  • N/A

    Citations

    Citations of this article.
  • N/A

    Views

    ScienceDirect users who have downloaded this article.
Sign in to save reference

Abstract

New particle formation (NPF) in the atmosphere substantially impacts ultrafine particle number concentrations and cloud condensation nuclei (CCN) levels. The impact of NPF on CCN levels depends on the ability of the particles to grow rapidly into the CCN size range thus avoiding loss due to scavenging. This work presents quantitative chemical composition measurements of individual 20 nm diameter particles during NPF using the Nano Aerosol Mass Spectrometer (NAMS). Sulfuric acid is shown to contribute quantitatively to changes in the sulfate mass fraction. However, growth due to sulfuric acid generally accounts for 50% of mass growth and is characteristic of fresh secondary organic aerosol. Differences in the overall growth rate from one event to another are caused by variations among all major chemical species and not just one individual species.

Author-supplied keywords

  • aerosol
  • aerosol growth
  • nanoparticle
  • nanoparticles
  • new particle formation
  • sulfuric acid

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • M V Johnston

  • B R Bzdek

  • J W DePalma

  • M R Pennington

  • J N Smith

  • T Petaja

Cite this document

Choose a citation style from the tabs below