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Particle Formation in a Complex Environment

1
Centre for Atmospheric Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
2
CSIRO Climate Science Centre, Aspendale 3195, Australia
3
German Meteorological Service, Meteorological Observatory Hohenpeissenberg, 82383 Hohenpeissenberg, Germany
4
Center for Archaeological Science, University of Wollongong, Wollongong, NSW 2522, Australia
*
Author to whom correspondence should be addressed.
Atmosphere 2019, 10(5), 275; https://doi.org/10.3390/atmos10050275
Received: 29 April 2019 / Revised: 7 May 2019 / Accepted: 9 May 2019 / Published: 14 May 2019
(This article belongs to the Special Issue Air Quality in New South Wales, Australia)
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Abstract

A field aerosol measurement campaign as part of the Measurements of Urban, Marine and Biogenic Air (MUMBA) campaign was conducted between 16 January 2013 and 15 February 2013 in the coastal city of Wollongong, Australia. The objectives of this research were to study the occurrence frequency, characteristics and factors that influence new particle formation processes. Particle formation and growth events were observed from particle number size distribution data in the range of 14 nm–660 nm measured using a scanning particle mobility sizer (SMPS). Four weak Class I particle formation and growth event days were observed, which is equivalent to 13% of the total observation days. The events occurred during the day, starting after 8:30 Australian Eastern Standard time with an average duration of five hours. The events also appeared to be positively linked to the prevailing easterly to north easterly sea breezes that carry pollutants from sources in and around Sydney. This suggests that photochemical reactions and a combination of oceanic and anthropogenic air masses are among the factors that influenced these events. View Full-Text
Keywords: new particle formation; Southern Hemisphere; Australia; atmospheric aerosol; MUMBA new particle formation; Southern Hemisphere; Australia; atmospheric aerosol; MUMBA
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Dominick, D.; Wilson, S.R.; Paton-Walsh, C.; Humphries, R.; Guérette, É.-A.; Keywood, M.; Selleck, P.; Kubistin, D.; Marwick, B. Particle Formation in a Complex Environment. Atmosphere 2019, 10, 275.

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