A Fast-Scanning DMA Train for Precision Quantification of Early Nanoparticle Growth

Paul M. Winkler; John Ortega; Thomas Karl; Peter H. McMurry; James N. Smith

doi:10.1063/1.4803229

A Fast-Scanning DMA Train for Precision Quantification of Early Nanoparticle Growth

Paul M. Winkler, John Ortega, Thomas Karl, Peter H. McMurry, James N. Smith

Aerosol Physics and Environmental Physics

Publications: Contribution to book › Contribution to proceedings

Abstract

Understanding the mechanisms of secondary organic aerosol formation is of critical importance for assessing aerosol radiative forcing and improving air quality control. A key quantity describing the gas-to-particle conversion is the rate at which nanoparticles of certain size are formed per unit volume and time. The quantification of nanoparticle formation rates requires precise knowledge of growth rates. Here we present a newly developed DMA train capable of providing definitive growth rates from size distribution scan frequencies of 1 Hz. This system has proven to yield statistically significant data even at ultra-low post-classification concentrations of 0.1 cm⁻³. A chamber study of α-pinene ozonolysis under close-to-ambient conditions demonstrates the need for particle size distribution measurements with increased time resolution

Original language	English
Title of host publication	NUCLEATION AND ATMOSPHERIC AEROSOLS
Editors	PJ DeMott, CD ODowd
Place of Publication	MELVILLE
Publisher	American Institute of Physics
Pages	165-168
Number of pages	4
DOIs	https://doi.org/10.1063/1.4803229
Publication status	Published - 2013
Event	19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA) - Fort Collins, Colorado State University, Fort Collins, Colombia Duration: 23 Jun 2013 → 28 Jun 2013 http://chem.atmos.colostate.edu/icnaa/

Publication series

Series	AIP Conference Proceedings
Volume	1527
ISSN	0094-243X

Conference

Conference	19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA)
Country/Territory	Colombia
City	Fort Collins
Period	23/06/13 → 28/06/13
Internet address	http://chem.atmos.colostate.edu/icnaa/

Austrian Fields of Science 2012

1030 Physics, Astronomy
103008 Experimental physics
105904 Environmental research

Keywords

Secondary organic aerosol
growth rate
DMA train
alpha-pinene
PARTICLE FORMATION
SIZE DISTRIBUTIONS
AEROSOL
RATES

Access to Document

10.1063/1.4803229

Cite this

@inproceedings{89c6804bcc2e452f822e808a4a051a7a,

title = "A Fast-Scanning DMA Train for Precision Quantification of Early Nanoparticle Growth",

abstract = "Understanding the mechanisms of secondary organic aerosol formation is of critical importance for assessing aerosol radiative forcing and improving air quality control. A key quantity describing the gas-to-particle conversion is the rate at which nanoparticles of certain size are formed per unit volume and time. The quantification of nanoparticle formation rates requires precise knowledge of growth rates. Here we present a newly developed DMA train capable of providing definitive growth rates from size distribution scan frequencies of 1 Hz. This system has proven to yield statistically significant data even at ultra-low post-classification concentrations of 0.1 cm−3. A chamber study of α-pinene ozonolysis under close-to-ambient conditions demonstrates the need for particle size distribution measurements with increased time resolution",

keywords = "Secondary organic aerosol, growth rate, DMA train, alpha-pinene, PARTICLE FORMATION, SIZE DISTRIBUTIONS, AEROSOL, RATES",

author = "Winkler, {Paul M.} and John Ortega and Thomas Karl and McMurry, {Peter H.} and Smith, {James N.}",

year = "2013",

doi = "10.1063/1.4803229",

language = "English",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics",

pages = "165--168",

editor = "PJ DeMott and CD ODowd",

booktitle = "NUCLEATION AND ATMOSPHERIC AEROSOLS",

note = "19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA) ; Conference date: 23-06-2013 Through 28-06-2013",

url = "http://chem.atmos.colostate.edu/icnaa/",

}

Winkler, PM, Ortega, J, Karl, T, McMurry, PH & Smith, JN 2013, A Fast-Scanning DMA Train for Precision Quantification of Early Nanoparticle Growth. in PJ DeMott & CD ODowd (eds), NUCLEATION AND ATMOSPHERIC AEROSOLS. American Institute of Physics, MELVILLE, AIP Conference Proceedings, vol. 1527, pp. 165-168, 19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA), Fort Collins, Colombia, 23/06/13. https://doi.org/10.1063/1.4803229

TY - GEN

T1 - A Fast-Scanning DMA Train for Precision Quantification of Early Nanoparticle Growth

AU - Winkler, Paul M.

AU - Ortega, John

AU - Karl, Thomas

AU - McMurry, Peter H.

AU - Smith, James N.

PY - 2013

Y1 - 2013

N2 - Understanding the mechanisms of secondary organic aerosol formation is of critical importance for assessing aerosol radiative forcing and improving air quality control. A key quantity describing the gas-to-particle conversion is the rate at which nanoparticles of certain size are formed per unit volume and time. The quantification of nanoparticle formation rates requires precise knowledge of growth rates. Here we present a newly developed DMA train capable of providing definitive growth rates from size distribution scan frequencies of 1 Hz. This system has proven to yield statistically significant data even at ultra-low post-classification concentrations of 0.1 cm−3. A chamber study of α-pinene ozonolysis under close-to-ambient conditions demonstrates the need for particle size distribution measurements with increased time resolution

AB - Understanding the mechanisms of secondary organic aerosol formation is of critical importance for assessing aerosol radiative forcing and improving air quality control. A key quantity describing the gas-to-particle conversion is the rate at which nanoparticles of certain size are formed per unit volume and time. The quantification of nanoparticle formation rates requires precise knowledge of growth rates. Here we present a newly developed DMA train capable of providing definitive growth rates from size distribution scan frequencies of 1 Hz. This system has proven to yield statistically significant data even at ultra-low post-classification concentrations of 0.1 cm−3. A chamber study of α-pinene ozonolysis under close-to-ambient conditions demonstrates the need for particle size distribution measurements with increased time resolution

KW - Secondary organic aerosol

KW - growth rate

KW - DMA train

KW - alpha-pinene

KW - PARTICLE FORMATION

KW - SIZE DISTRIBUTIONS

KW - AEROSOL

KW - RATES

U2 - 10.1063/1.4803229

DO - 10.1063/1.4803229

M3 - Contribution to proceedings

T3 - AIP Conference Proceedings

SP - 165

EP - 168

BT - NUCLEATION AND ATMOSPHERIC AEROSOLS

A2 - DeMott, PJ

A2 - ODowd, CD

PB - American Institute of Physics

CY - MELVILLE

T2 - 19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA)

Y2 - 23 June 2013 through 28 June 2013

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