Analysis of sub-3 nm particle growth in connection with sulfuric acid in a boreal forest

Show full item record



Permalink

http://hdl.handle.net/10138/165323

Citation

Yli-Juuti , T , Tikkanen , O-P , Manninen , H E , Nieminen , T & Kulmala , M 2016 , ' Analysis of sub-3 nm particle growth in connection with sulfuric acid in a boreal forest ' , Boreal Environment Research , vol. 21 , no. 3-4 , pp. 287-298 .

Title: Analysis of sub-3 nm particle growth in connection with sulfuric acid in a boreal forest
Author: Yli-Juuti, Taina; Tikkanen, Olli-Pekka; Manninen, Hanna E.; Nieminen, Tuomo; Kulmala, Markku
Contributor: University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
Date: 2016-05-23
Language: eng
Number of pages: 12
Belongs to series: Boreal Environment Research
ISSN: 1239-6095
URI: http://hdl.handle.net/10138/165323
Abstract: We analyzed nanoparticle growth during new-particle-formation events based on ten years of measurements carried out at a boreal forest site in Hyytiala, Finland, concentrating on the sub-3 nm particles and the role of sulfuric acid in their growth. Growth rates of 1.5-3 nm diameter particles were determined from ion spectrometer measurements and compared with parameterized sulfuric acid concentration and other atmospheric parameters. The calculated growth rates from sulfuric acid condensation were on average 7.4% of the observed growth rates and the two did not correlate. These suggest that neither sulfuric acid monomer condensation nor coagulation of small sulfuric acid clusters was the primary growth mechanism in these atmospheric conditions. Also no clear sign of organic condensation being the single main growth mechanism was seen. These observations are consistent with the hypothesis that several factors have comparative roles in the sub-3 nm growth.
Subject: NUCLEATION MODE PARTICLES
ATMOSPHERIC NUCLEATION
AEROSOL FORMATION
NANOPARTICLE GROWTH
MASS-SPECTROMETER
ORGANIC-COMPOUNDS
SIZE DISTRIBUTION
SMEAR-II
CHEMISTRY
RATES
114 Physical sciences
1172 Environmental sciences
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
ber21_287.pdf 316.5Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record