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Significant increase of aerosol number concentrations in air masses crossing a densely trafficked sea area

Kecorius, Simonas; Kivekäs, Niku LU ; Kristensson, Adam LU ; Tuch, Thomas; Covert, David S.; Birmili, Wolfram; Lihavainen, Heikki; Hyvarinen, Antti-Pekka; Martinsson, Johan LU and Sporre, Moa LU , et al. (2016) In Oceanologia 58(1). p.1-12
Abstract
In this study, we evaluated 10 months data (September 2009 to June 2010) of atmospheric aerosol particle number size distribution at three atmospheric observation stations along the Baltic Sea coast: Vavihill (upwind, Sweden), Uto (upwind, Finland), and Preila (downwind, Lithuania). Differences in aerosol particle number size distributions between the upwind and downwind stations during situations of connected atmospheric flow, when the air passed each station, were used to assess the contribution of ship emissions to the aerosol number concentration (diameter interval 50-400 nm) in the Lithuanian background coastal environment. A clear increase in particle number concentration could be noticed, by a factor of 1.9 from Uto to Preila (the... (More)
In this study, we evaluated 10 months data (September 2009 to June 2010) of atmospheric aerosol particle number size distribution at three atmospheric observation stations along the Baltic Sea coast: Vavihill (upwind, Sweden), Uto (upwind, Finland), and Preila (downwind, Lithuania). Differences in aerosol particle number size distributions between the upwind and downwind stations during situations of connected atmospheric flow, when the air passed each station, were used to assess the contribution of ship emissions to the aerosol number concentration (diameter interval 50-400 nm) in the Lithuanian background coastal environment. A clear increase in particle number concentration could be noticed, by a factor of 1.9 from Uto to Preila (the average total number concentration at Uto was 791 cm(-3)), and by a factor of 1.6 from Vavihill to Preila (the average total number concentration at Vavihill was 998 cm(-3)). The simultaneous measurements of absorption Angstrom exponents close to unity at Preila supported our conclusion that ship emissions in the Baltic Sea contributed to the increase in particle number concentration at Preila. (C) 2015 Institute of Oceanology of the Polish Academy of Sciences. (Less)
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publication status
published
subject
keywords
Ship emission, Particle number size distribution, Absorption Angstrom, exponent
in
Oceanologia
volume
58
issue
1
pages
1 - 12
publisher
Elsevier
external identifiers
  • wos:000367099200002
  • scopus:84957725523
ISSN
0078-3234
DOI
10.1016/j.oceano.2015.08.001
language
English
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yes
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9dab9670-0a3f-46e8-ba0d-341dcceaa96b (old id 8539954)
date added to LUP
2016-01-29 12:10:31
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2017-01-01 05:38:07
@article{9dab9670-0a3f-46e8-ba0d-341dcceaa96b,
  abstract     = {In this study, we evaluated 10 months data (September 2009 to June 2010) of atmospheric aerosol particle number size distribution at three atmospheric observation stations along the Baltic Sea coast: Vavihill (upwind, Sweden), Uto (upwind, Finland), and Preila (downwind, Lithuania). Differences in aerosol particle number size distributions between the upwind and downwind stations during situations of connected atmospheric flow, when the air passed each station, were used to assess the contribution of ship emissions to the aerosol number concentration (diameter interval 50-400 nm) in the Lithuanian background coastal environment. A clear increase in particle number concentration could be noticed, by a factor of 1.9 from Uto to Preila (the average total number concentration at Uto was 791 cm(-3)), and by a factor of 1.6 from Vavihill to Preila (the average total number concentration at Vavihill was 998 cm(-3)). The simultaneous measurements of absorption Angstrom exponents close to unity at Preila supported our conclusion that ship emissions in the Baltic Sea contributed to the increase in particle number concentration at Preila. (C) 2015 Institute of Oceanology of the Polish Academy of Sciences.},
  author       = {Kecorius, Simonas and Kivekäs, Niku and Kristensson, Adam and Tuch, Thomas and Covert, David S. and Birmili, Wolfram and Lihavainen, Heikki and Hyvarinen, Antti-Pekka and Martinsson, Johan and Sporre, Moa and Swietlicki, Erik and Wiedensohler, Alfred and Ulevicius, Vidmantas},
  issn         = {0078-3234},
  keyword      = {Ship emission,Particle number size distribution,Absorption Angstrom,exponent},
  language     = {eng},
  number       = {1},
  pages        = {1--12},
  publisher    = {Elsevier},
  series       = {Oceanologia},
  title        = {Significant increase of aerosol number concentrations in air masses crossing a densely trafficked sea area},
  url          = {http://dx.doi.org/10.1016/j.oceano.2015.08.001},
  volume       = {58},
  year         = {2016},
}