Articles | Volume 18, issue 15
https://doi.org/10.5194/acp-18-11171-2018
https://doi.org/10.5194/acp-18-11171-2018
Research article
 | 
10 Aug 2018
Research article |  | 10 Aug 2018

Differentiating between particle formation and growth events in an urban environment

Buddhi Pushpawela, Rohan Jayaratne, and Lidia Morawska

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Short summary
New particle formation (NPF) is a common occurrence in urban environments. Using a 500-day dataset obtained in Brisbane, Australia, we observed that NPF events occurred on 37 % of days and 10 % of nights. However, particle growth occurred on 70 % of nights. We show that when particles are measured by an instrument with a detection limit of 3 nm or above, particle growth events may be easily misidentified as NPF events. This can lead to an overestimation of the occurrence of NPF events.
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