Diurnal variation of small and large ion concentrations in an urban location
Jayaratne, Rohan, Ling, Xuan, & Morawska, Lidia (2013) Diurnal variation of small and large ion concentrations in an urban location. In European Aerosol Conference (EAC 2013), 1-6 September 2013, Clarion Congress Hotel , Prague.
A Neutral cluster and Air Ion Spectrometer (NAIS) was used to monitor the concentration of airborne ions on 258 full days between Nov 2011 and Dec 2012 in Brisbane, Australia. The air was sampled from outside a window on the sixth floor of a building close to the city centre, approximately 100 m away from a busy freeway. The NAIS detects all ions and charged particles smaller than 42 nm. It was operated in a 4 min measurement cycle, with ion data recorded at 10 s intervals over 2 min during each cycle. The data were analysed to derive the diurnal variation of small, large and total ion concentrations in the environment. We adapt the definition of Horrak et al (2000) and classify small ions as molecular clusters smaller than 1.6 nm and large ions as charged particles larger than this size...
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|Item Type:||Conference Paper|
|Keywords:||ion concentrations, urban , air pollution, air quality, Air Ion Spectrometer|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2013 [please consult the author]|
|Deposited On:||26 Sep 2013 04:23|
|Last Modified:||02 Oct 2013 05:05|
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