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Particle formation events measured at a semirural background site in Denmark

Wang, Fenjuan; Zhang, Zhenyi; Massling, Andreas; Ketzel, Matthias and Kristensson, Adam LU (2013) In Environmental Science and Pollution Research 20(5). p.3050-3059
Abstract
The particle formation and growth events observed at a semirural background site in Denmark were analyzed based on particle number size distribution data collected during the period from February 2005 to December 2010. The new particle formation (NPF) events have been classified visually in detail according to 3D daily plots in combination with an automatic routine. A clear seasonal variation was found in the way that events occurred more frequently during the warm season from May to September and especially in June. The mean values of the apparent 6 nm particle formation rates, the growth rate and the condensation sink were about 0.36 cm(-3) s(-1), 2.6 nm h(-1), 4.3 x 10(-3) s(-1), respectively. A positive relationship of oxidation... (More)
The particle formation and growth events observed at a semirural background site in Denmark were analyzed based on particle number size distribution data collected during the period from February 2005 to December 2010. The new particle formation (NPF) events have been classified visually in detail according to 3D daily plots in combination with an automatic routine. A clear seasonal variation was found in the way that events occurred more frequently during the warm season from May to September and especially in June. The mean values of the apparent 6 nm particle formation rates, the growth rate and the condensation sink were about 0.36 cm(-3) s(-1), 2.6 nm h(-1), 4.3 x 10(-3) s(-1), respectively. A positive relationship of oxidation capacity (O-X = O-3 + NO2) of the atmosphere and the appearance of NPF events was found indicating that the oxidation of the atmosphere was linked to the formation of new particles. An analysis of a 3-day backward trajectories revealed that NW air masses from the North Sea were giving the highest probability of NPF events, namely between 20 and 40 %. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Particle number size distribution, Formation and growth event, Trajectory, Oxidation capacity
in
Environmental Science and Pollution Research
volume
20
issue
5
pages
3050 - 3059
publisher
Springer
external identifiers
  • wos:000318175400032
  • scopus:84876729934
ISSN
1614-7499
DOI
10.1007/s11356-012-1184-6
project
MERGE
language
English
LU publication?
yes
id
38fa3e3b-e7cd-44ff-a503-6ae89c204068 (old id 3821445)
date added to LUP
2013-06-25 12:30:49
date last changed
2019-03-12 09:55:10
@article{38fa3e3b-e7cd-44ff-a503-6ae89c204068,
  abstract     = {The particle formation and growth events observed at a semirural background site in Denmark were analyzed based on particle number size distribution data collected during the period from February 2005 to December 2010. The new particle formation (NPF) events have been classified visually in detail according to 3D daily plots in combination with an automatic routine. A clear seasonal variation was found in the way that events occurred more frequently during the warm season from May to September and especially in June. The mean values of the apparent 6 nm particle formation rates, the growth rate and the condensation sink were about 0.36 cm(-3) s(-1), 2.6 nm h(-1), 4.3 x 10(-3) s(-1), respectively. A positive relationship of oxidation capacity (O-X = O-3 + NO2) of the atmosphere and the appearance of NPF events was found indicating that the oxidation of the atmosphere was linked to the formation of new particles. An analysis of a 3-day backward trajectories revealed that NW air masses from the North Sea were giving the highest probability of NPF events, namely between 20 and 40 %.},
  author       = {Wang, Fenjuan and Zhang, Zhenyi and Massling, Andreas and Ketzel, Matthias and Kristensson, Adam},
  issn         = {1614-7499},
  keyword      = {Particle number size distribution,Formation and growth event,Trajectory,Oxidation capacity},
  language     = {eng},
  number       = {5},
  pages        = {3050--3059},
  publisher    = {Springer},
  series       = {Environmental Science and Pollution Research},
  title        = {Particle formation events measured at a semirural background site in Denmark},
  url          = {http://dx.doi.org/10.1007/s11356-012-1184-6},
  volume       = {20},
  year         = {2013},
}